National Emergency Laparotomy Audit (NELA)
Royal College of Anaesthetists · Academic
In term In term in the September 2026 edition: the latest version runs to 21 November 2028.
- Reference
- DARS-NIC-355855-R4G6G
- Current version
- v11.5
- Term of current version
- 6 June 2025 to 21 November 2028
- Start date
- Before 1 January 2019
- Data controller
- Joint Data Controller
- Commercial purposes
- No
- Sublicensing
- No
- Files released to date
- 86
Data controllers
Why the data was released
Objective for processing
BACKGROUND AND PURPOSE
The National Emergency Laparotomy Audit (NELA) was commissioned in 2011 by the Healthcare Quality Improvement Partnership (HQIP) and is funded by NHS England and the Welsh government. NELA first began collecting data in 2013 and has continued to do so on a regular basis ever since. NELA’s aims are to collect and publish high-quality comparative information from all hospitals in England and Wales at which emergency laparotomies (an emergency laparotomy is a major operation where the surgeon has to cut open the abdomen) are performed, in order to drive quality improvement in the care of these patients. It was established in response to the comparatively high death rate after emergency laparotomy, and the substantial variation in this rate between hospitals.
Throughout the Agreement NELA, the NELA team, and the NELA project team are interchangeable terms used and refer to the core NELA team that manage the day-to-day operations and analysis. The NELA team comprises substantive employees of both the Royal College of Surgeons of England (RCS) and Royal College of Anaesthetists (RCoA) as well as members who hold a signed memorandum of understanding with RCoA. Only substantive employees of the RCoA or RCS or non-substantive employees who hold honorary contracts with the RCoA will access the NHS England data disseminated.
The objectives of the Audit are:
1. To enable secondary care providers to improve the delivery of care to patients undergoing emergency laparotomy using information produced by the audit.
2. To provide comparative information on the organisation of care by providers of emergency laparotomy.
3. To provide comparative information on patient outcomes following surgery for emergency laparotomy.
4. To facilitate the development of effective change (quality improvement) initiatives and thereby spread examples of best practice to help local providers make the best possible use of audit results.
NELA audits care provided by participating hospitals against a set of key standards including:
• Case Ascertainment
• Computerised tomography (CT) scans reported by an in-house consultant radiologist before surgery
• Access to theatres within a time frame appropriate for the urgency of surgery
• Documented assessment, before surgery, of the risks of surgery
• Review before surgery by consultant surgeon, anaesthetist, and intensivist for high-risk patients
• Presence of consultant surgeon and anaesthetist in theatre for high-risk patients
• Admission to critical care after surgery for high-risk patients
• Assessment by a care of the older person specialist for those aged 65+ and frail or aged 80+
• 30-day mortality
DATA SUMMARY
NELA holds data from 2012/13 and requires Demographics and Civil Registration (deaths) data, Hospital Episode Statistics (HES) Admitted Patient Care (APC) and Critical Care (CC) data over the course of this Agreement.
NELA supplies a cohort to NHS England on an annual basis. The cohort submitted to NHS England is different each year - all patients over the age of 18 years who, in the most recent NELA-defined audit year, have had a general surgical emergency laparotomy in any NHS hospital in England including emergency gastrointestinal procedures on the stomach, large and small bowel, for conditions such as perforation, bleeding, abdominal abscess or obstruction, via open or laparoscopic approaches. It is expected that there will be around 25,000 - 30,000 such patients each year. To address the UK GDPR Principle of Data Minimisation the data requested has been limited to this cohort of patients.
Each year, NELA also requires NHS England to provide the previous two years’ worth of HES data for the new cohort which is submitted annually. No historic data is released for cohorts submitted in previous audit years; only those who have undergone an emergency laparotomy procedure within the most recent NELA year. There are therefore no duplications of data. The retained data and additional data requested under this iteration of the Agreement will be used to enrich the data submitted by hospitals for the purposes of the audit.
No direct patient identifiers are needed for analysis, however the information needs to be on an individual level in order to link NHS England data to the NELA data set for analysis in line with the audit’s aims.
NELA is a national audit that includes all eligible patients of emergency laparotomy in England and Wales. Therefore, the audit requires data for the whole of England.
Given the size and scope of the audit, the NELA team feel that requesting data from NHS England is the most efficient way to obtain the data required.
NELA is only requesting data required for the purposes of the audit and only for eligible emergency bowel surgeries. The audit already collects an extensive dataset directly from hospitals—no data that can be obtained from the hospitals is required from NHS England. As aforementioned, the NHS England data supplements and enhances the data the audit dataset already holds.
NELA has received Section 251 NHS Act 2006 support (reference - CAG 5-07(d)/2013) from the Health Research Authority (HRA) Confidential Advisory Group (CAG) to cover access to identifiable data on patients aged 18 and over undergoing emergency laparotomy in England and Wales from December 2013 onwards and linkage of this data to HES, mortality data and Intensive Care National Audit and Research Centre (ICNARC) data (ICNARC data facilitated under a separate Agreement between ICNARC and the RCoA, not an Agreement with NHS England).
Support has also been received from HRA CAG to defer the application of the National Data Opt-Out (NDO) in relation to NELA. There are two points of rationale: (1) patient safety – if the NDO is implemented, clinicians may be unable to use the NELA webtool to obtain patient risk scores. Several clinical teams have flagged the risk to NELA data entry with the NELA study team due to the increased workload related to checking for the NDO prior to data entry in real-time, or fear of data breaches to diminished engagement with the audit; (2) introduction of bias – the case ascertainment to NELA is over 85%. Figures from NHS England show that rates of registration with the National Data Opt-Out vary, exceeding 10% in one in twenty GP practices. The Care Quality Commission uses information from NELA to inform their surveillance approach and to plan and support inspections. Missing information may bias the results. The data quoted is derived from data available here: https://digital.nhs.uk/data-and-information/publications/statistical/national-data-opt-out/april-2022.
NELA applied for, and received, exemption from applying the national data-opt. Therefore, data from anyone on the opt-out register can continue to be entered and used as part of NELA. NELA will continue to remove any individual patient who get in touch with NELA or their care team indicating that they do not wish to have their data included in NELA, as per the CAG conditions of support. Therefore, local opt-outs will be applied.
JUSTIFICATION FOR DATA
- Demographics data and Civil Registration (deaths) data:
The above datasets help ensure that the audit has accurate information on mortality outcomes, including information on diagnoses associated with the death. This allows NELA to compute deaths following surgery, a key metric for the audit. It is also used to compute days alive out of hospital, another outcome measure for the audit.
- Hospital Episode Statistics (HES) Critical Care data:
This data allows for an investigation of the patterns of critical care across NHS Hospitals and for an examination of whether patients with similar conditions and risk of death are being treated in a consistent way that is compatible with guideline recommendations. In line with the NELA team’s desire to continue to look for ways to enhance the audit, participants and stakeholders fed back to the NELA team that information about the delivery of critical care to emergency laparotomy patients would help to inform the development of local Quality Improvement initiatives. To this end, the project uses Critical Care data to develop performance indicators to provide hospitals with this information.
- HES Admitted Patient Care data:
This data is required to provide information on the number of expected emergency laparotomy procedures in any given audit year (case ascertainment). This is critical information and allows NELA to compute case ascertainment rates for each participating hospital - a metric needed to determine the level of completeness of reporting for each hospital and to provide an insight into the representativeness of the audit population. Information from this dataset is also required to examine data by deprivation score, which can provide important information on equity of services in different regions. Other variables from this dataset are also needed to provide information on key measures like patient comorbidities and longer-term outcomes like readmission rates.
The data from HES Critical Care and Admitted Patient Care also helps the NELA team to improve risk-adjustment models by using extensive information on comorbid conditions held within HES (eg. to calculate the Charlson Comorbidity score - predicts 10-year survival in patients with multiple comorbidities).
DATA CONTROLLERS / DATA PROCESSORS
HQIP and NHS England are joint data controllers for the purposes of this Data Sharing Agreement. RCoA, RCS, Bluesource Information Limited and Harbor Solutions Limited are data processors.
Funders include NHS England and the Welsh government. While the audit is commissioned by HQIP, HQIP themselves are commissioned by NHS England to commission the Audit. HQIP and NHS England provide general oversight for the audit but are not involved in the day-to-day management and do not have access to NHS England data.
The RCoA were commissioned by HQIP to deliver the audit. As commissioners, HQIP ensure that the RCoA deliver contracted elements of the audit on time and within budget, in addition to serving as data controllers. HQIP, NHS England, and the Welsh government receive copies of NELA-generated reports for review and approval. Where the reports contain NHS England data, the data is aggregated with small numbers suppressed in line with the HES analysis guide. The audit’s contract with HQIP specifies how data should be protected and processed.
The RCoA also work with the Clinical Effectiveness Unit (CEU) at the RCS to support the delivery of the audit. RCS have a role in developing the audit methodology and analysis of the audit data. The NHS England data is also stored and processed on servers located at the RCS CEU. Both the RCoA and RCS however have no role in determining the purposes and means of the processing of the NHS England data requested under this Agreement. That responsibility lies solely with NHS England and HQIP.
The RCoA have employed Bluesoure Information Limited to provide secure back-up storage of the data. In turn Bluesource have contracted Harbor Solutions Limited to provide these services. Per Part 1, Section 3(4)(a) of the Data Protection Act 2018, as the storage of data is considered to be a type of processing, Harbor Solutions Limited and Bluesource Information Limited are considered data processors. No patient identifiable data is stored on the back-up servers provided by Harbor Solutions Limited. The terms of the contract Bluesource Information Limited has with Harbor Solutions Limited mirror the terms agreed between Bluesource Information Limited and the RCoA.
NELA also seeks guidance from a clinical reference group made up of representatives from key stakeholder organisations. Neither these individuals nor their organisations have access to NELA data or NHS England data; they also do not determine the purpose or means of the processing of personal data.
WIDER PROGRAMMES
NELA forms part of the National Clinical Audit and Patient Outcomes Programme (NCAPOP). HQIP, as commissioner of the NCAPOP, are responsible for project specification development, procurement and extension activities, contract management and authorising data sharing requests. NHS England are responsible for determining which projects/topics are included in the NCAPOP and, as a funder, participate in specification development, procurement and project extension activities and authorises, as chair of the specification development meetings, the publication of project outputs. These specifications set out the purpose of the project, the patient groups and clinical services to evaluate and the types of data to collect. NHS England are also a representative on the HQIP Data Access Request Group which authorises data sharing applications from third parties.
Other than the NCAPOP, NELA is not part of any wider projects. From time to time however, NELA collaborates with external researchers by allowing access to NELA data via an application process. Only data collected as part of the audit (not data from NHS England) are shared.
PATIENT AND PUBLIC INVOLVEMENT (PPI)
NELA have lay representation on our project board (high-level governance group) and our clinical reference group.
An information leaflet, outlining in lay person terms the objectives of NELA, was published in October 2018 with input from the Patient and Public Involvement Manager at the RCoA and patient representatives. This document is available on our website (https://data.nela.org.uk/information/nelappi).
NELA convened a meeting with its patient and families involvement group (PAFIG) on 27th July 2022 to discuss the deferral of the national data opt-out. The opt-out legislation was reviewed in general and an overview of the NELA exemption application was provided as a basis for discussion.
One member noted that the information collected as part of NELA was really important in that it improves surgery; she thought it was strange that anyone would want to opt-out of such a programme. She also noted that the information about mortality risk was particularly important as this impacts all care received subsequently. One of the members asked if there was still an option for patients to withdraw after the exemption comes into place and the NELA team indicated that there was, through previously established withdrawal procedures. When specifically asked if members had any objections to the exemption being applied, no objections were received.
In the 27th of July meeting of the PAFIG, other modes of communication were discussed. A video was also suggested. The NELA team will look to produce a video and/or poster regarding the opt-out which can be posted to the website and distributed to local NELA leads within participating hospitals which can be further distributed to patients.
LEGAL BASIS FOR PROCESSING
HQIP and NHS England both rely on Article 6 (1) (e) of the General Data Protection Regulation as their lawful basis for processing personal data - "processing is necessary for the performance of a task carried out in the public interest or in the exercise of official authority vested in the controller". This is justified through commissioning arrangements which link back to NHS England and other national bodies with statutory responsibilities to improve quality of health care service. To process special categories of personal data, HQIP rely on Article 9 (2) (i) - "processing is necessary for reasons of public interest in the area of public health, such as protecting against serious cross-border threats to health or ensuring high standards of quality and safety of health care and of medicinal products or medical devices, on the basis of Union or Member State law which provides for suitable and specific measures to safeguard the rights and freedoms of the data subject, in particular professional secrecy". This is justified as the data is required for audit purposes - for improvement and ensuring high standards and quality/safe care. The Secretary of State has a legal duty under section 2 of the Health and Social Care Act 2012 to continuously improve the quality of health care services. NHS England has a legal duty under the NHS Act 2006 section 13e to improve quality of healthcare services . The Secretary of State and NHS England exercise these duties through the NHS England contract with HQIP to commission NELA and the NHS standard contract with NHS providers of services to mandate participation within NCAPOP audits.
Recital 54 of GDPR explains that:
The processing of special categories of personal data may be necessary for reasons of public interest in the areas of public health without consent of the data subject. Such processing should be subject to suitable and specific measures so as to protect the rights and freedoms of natural persons. In that context, ‘public health’ should be interpreted as defined in Regulation (EC) No 1338/2008 of the European Parliament and of the Council, namely all elements related to health, namely health status, including morbidity and disability, the determinants having an effect on that health status, health care needs, resources allocated to health care, the provision of, and universal access to, health care as well as health care expenditure and financing, and the causes of mortality. Such processing of data concerning health for reasons of public interest should not result in personal data being processed for other purposes by third parties such as employers or insurance and banking companies.
To process special categories of personal data, NHS England rely on Article 9(2)(h) - "Processing is necessary for the purposes of preventive or occupational medicine, for the assessment of the working capacity of the employee, medical diagnosis, the provision of health or social care or treatment or the management of health or social care systems and services on the basis of Union or Member State law or pursuant to contract with a health professional and subject to the conditions and safeguards referred to in paragraph 3". This is justified as NHS England are responsible for the provision of health and social care, and the management of systems and compliance. Members of the NELA project team employed by the NHS will be subject to standard NHS confidentiality agreements.
Processing activities
The RCoA send a file of patient identifiers, including NHS number, date of birth, postcode, and NELA ID to NHS England.
NHS England link the patient identifiers supplied by the RCoA to the HES Critical Care, Admitted Patient Care, Civil Registration (deaths) and Demographics data and return to the RCoA a file with the NELA ID attached to each individual record.
Transferral process - data received from NHS England is downloaded by the RCoA to secure, access-restricted servers. All data received from NHS England is also shared with the RCS Clinical Effectiveness Unit (CEU) via a secure Sharepoint site. The file is made available on Sharepoint for a 3-hour window so that the CEU statistician can access and securely store the data within the RCS CEU. The NELA project team then merge the NELA dataset and HES, Civil Registration (deaths) and Demographics data from NHS England using the NELA ID. It is this pseudonymised file which is used for the analysis.
In line with the current contract with HQIP and the introduction of the Best Practice Tariff for Emergency Laparotomies, it is important for hospitals to be able to understand their case ascertainment and identify which patients have not had their data uploaded to NELA. To this end, RCoA will return to each Trust the data they originally submitted to NHS England as Secondary Use Services (SUS) data (transformed by NHS England into HES) so that the Trusts can identify patients that have not been analysed as part of the audit. This requires hospital access to their own unsuppressed record-level data. The following data items will be returned: admission method, patient year of birth, patient gender, date of admission, date of operation, primary operative procedure code, diagnosis code. Only data that has emanated from the Trust will be returned to the Trust.
NELA collects data on a continuous basis each year. At the end of the data collection year, the NELA team export data from the NELA data entry portal (this only comprises data entered by participating sites, not NHS England data). The data is securely saved to RCoA servers. Once cleaned, a file of identifiers is sent to NHS England for linkage to HES, Mortality and Demographic data via Secure Electronic File Transfer (SEFT).
In all cases, the data received from NHS England will not be linked back to the identifiable NELA database held at RCoA. An extract of pseudonymised data is taken from the NELA database and this data will be linked to the HES, Mortality and Demographics data via the NELA ID. Date of death submitted from the NELA database is provided as this includes an important data quality step. There are potential missed linkages if RCS and RCoA do not have this information when processing the data. This also helps to validate the data entered into NELA. No data provided by NHS England is sent to RCoA to correct fields in the NELA database.
A copy of the pseudonymised data fields along with the unique NELA ID will be analysed by project team members from both RCS and RCoA at the RCS CEU and RCoA on an, at the minimum, annual basis to produce NELA’s annual state of the nation reports. HES data will primarily be used to determine case ascertainment for each participating site and the Mortality data will be used to determine mortality after surgery. The full date of death is required to be able to calculate survival at multiple time points (30 day, 90 day, etc.). There will be no capacity for RCS / RCoA analysts to use the date of death data supplied to identify any individual patients. Mortality and Demographic data are also used to produce an annual list of potential outlier hospitals whose adjusted 30-day mortality is above that expected.
RCoA and RCS will not be linking HES, mortality or demographic data with any other datasets (apart from an extract of NELA data). Linkage with any other datasets would be subject to a future application and would be supported by an appropriate legal basis.
There is no requirement to re-identify individuals and the NELA team will make no attempt to re-identify individuals contained in the NHS England data.
The majority of the work conducted on NHS England data will be done by the RCS or RCoA statisticians/data analysts who form part of the NELA project team. All individuals with access to the data are substantively employed. All team members are expected to complete training in data protection and confidentiality before access to data is granted. All requests for access must be approved by the RCoA Head of Research. Within the secure server, project-specific folders are created for each individual requiring access thereby limiting the access to only that data which is needed for each project. Similar procedures are in place at the RCS.
Harbor Solutions Limited provide back-up data storage for the RCoA, and process data only for the purpose of secure retention. Harbor Solutions Limited have no means to access NHS England data. Any access to the data held under this agreement would be considered a breach of the agreement. The back-up servers that are owned and managed by Harbor Solutions Limited are held at locations owned by IOMart and Cyxtera respectively. IOMart and Cyxtera do not have access to the servers that hold the data disseminated under this Agreement.
Expected output
NELA is commissioned to produce a ‘state of the nation’ annual report each year. Reports utilising patient level information have been published in June 2015, July 2016, October 2017, November 2018, December 2019, November 2020, November 2021, February 2023, and October 2024 - these are available to view on the NELA website (data.nela.org.uk). Subsequent reports are scheduled to be published yearly, while ad hoc interim reports may also be published. These reports provide updates on standards of care for emergency bowel surgery patients. The reports provide aggregated information on key metrics like case ascertainment, mortality, timeliness to operating theatre, consultant delivered care, and risk assessment among others. The reports also produce this information at hospital-level and red, amber, green (RAG) rate the success of each hospital in meeting each metric.
In order to more widely disseminate the findings of the audit, additional scientific publications hope to be produced. These outputs are anticipated to be in the form of peer-reviewed articles and conference presentations e.g. the British Medical Journal (BMJ), British Journal of Anaesthesia (BJA), Association of Surgeons of Great Britain and Ireland (ASGBI) journal, and Association of Anaesthetists of Great Britain and Ireland (AAGBI) journal. Publications related to the audit methods (e.g. a risk-adjustment model) rather than information of clinical practice and outcomes are to be published on an ad hoc basis.
Publications are also anticipated to be / have been distributed via social media (@NELANews on X/Twitter), newsletters, and website updates (data.nela.org.uk).
So far, 7 peer-reviewed publications that used combined NELA data and data from NHS England have been produced by the NELA project team.
All outputs and publications contain / will contain only aggregated data with small numbers suppressed in line with the HES Analysis Guide.
For each annual report, the NELA team develop a communication plan that is agreed with NELA’s commissioner, HQIP. Once approved, the report is a publicly available document. Methods of communication for the annual report include social media (X/Twitter posts), website updates to the both the RCoA and NELA websites, newsletter distribution to various audiences, including the RCoA members and NELA participating hospitals, webinars, and infographics designed for a lay audience. The report is also shared with NELA’s clinical reference group for distribution through their networks, as well as NELA’s funders—NHS England and the Welsh government. Ad hoc interim reports are communicated and disseminated in similar ways.
The data received under this DSA will contribute to upcoming NELA state of the nation reports.
Expected measurable benefits
The audit aims to produce useful indicators that describe the standard of care in a variety of clinical areas. These indicators are anticipated to allow for the identification of NHS providers that are performing well and those requiring improvement to the quality of care received by patients.
Ongoing improvement in the processes of care and clinical outcomes has the potential to lead to a reduction in the postoperative mortality rates and thus an overall improvement in patient outcomes. Outcomes are measured by re-auditing individual sites and therefore regular data linkage is required.
Trusts hope to use the process indicators and outcomes reported in the annual reports to assess their care against national standards and benchmark against other NHS trusts. This may enable providers to identify areas requiring improvement, which in turn may provide a benefit to patient care.
By providing hospital sites with information on which patients have been coded as having had an emergency laparotomy from the HES data received, hospital sites can investigate and improve both their case ascertainment rate and quality of care.
Annual reports provide benchmarked data for each participating hospital in England and Wales. This provides comparative information that can be used by local sites to see where improvements in care are needed. It is also anticipated that the reports produced as a result of the audit will contribute to clinical guidance and national policy. The reports produced are sent to a variety of organisations (including NHS England, NICE, CQC) and they can use this information to update guidance and influence policy.
It is expected that participating hospitals will implement quality improvement measures in any areas of care that are lagging below standards and below national averages.
Benefits to patient care are measured by compliance with set clinical standards that NELA audits against. Compliance is red, amber, green (RAG) rated for each metric on a hospital-level. Trends in key reporting metrics will be reviewed over time to see if compliance increases.
NELA anticipate seeing benefits from the data from the audit combined with data from NHS England to enable NHS providers to identify where they are performing well and look to improve areas that are not performing well. This is anticipated to have an overall positive impact on patient care for those undergoing emergency laparotomy.
Benefits reported so far
The NELA audit is highly relevant to current clinical practice and publications have allowed for widespread dissemination of the findings amongst healthcare professionals. Linkage to the HES/Mortality data has allowed the Audit to report more extensively on patterns of care beyond the initial hospital admission and longer-term outcomes, such as 90-day mortality. The Audit is able to examine issues such as readmission rates and the most common reasons for these post-discharge complications - e.g. respiratory complications and anastomotic leaks. Data provided by the audit has an impact on provision of care for patients undergoing emergency bowel surgery and as noted below there have been tangible improvements in patient care since the audit's inception. Based on the NELA key metrics, the audit can see that patients now benefit from consultant-delivered care more than in earlier years of the audit, receive computerised tomography (CT) scans before surgery more often, have a pre-operative documentation of risk more often, and a higher percentage of high-risk patients are admitted directly to critical care after surgery than previously.
The NELA team have produced a quality improvement (QI) plan, approved by NELA’s commissioner, HQIP, which includes tools that the NELA team can offer to participating hospitals to improve patient care based on data produced by the audit. Ultimately, it is up to the participating hospitals to implement QI initiatives locally.
The NELA team have seen promising trends on a national level in most key metrics since the start of the audit. Different hospitals have different levels of compliance with each metric. The time it takes to achieve compliance across all metrics will vary by trust but the NELA team are encouraged by the progress seen since inception.
NHS England data is being used by the Care Quality Commission (CQC) on their Dashboard (hospital-level data - includes data derived from NHS England data, including case ascertainment and 30-day mortality, with small numbers suppressed), on the Model Health System website (no record level data - all aggregated with small numbers suppressed) and as part of the NHS England Best Practice Tariff.
In terms of exploitation of results, there may be instances where data gathered as part of NELA is used for further research and the creation of new tools. An example of such development is the creation of the NELA risk prediction algorithm, which was developed to facilitate risk-adjusted comparisons of 30-day mortality rates between hospitals. It was brought about because other risk prediction tools were limited as they did not specifically focus on our patient population. Mortality data were used to develop the model so that 30-day postoperative mortality could be derived. The model is not intended to be used in isolation but as part of the overall clinical decision making process. All of the audit data is owned by HQIP as the audit commissioner, but the audit acknowledges all those that contribute including NHS England. The coefficients and calculations used are open to all and published on the NELA website so anyone can make use of it.
The audit has made recommendations in annual reports for local participating sites to follow and have now moved toward higher-level recommendations aimed at commissioners, funders, Royal Colleges and other professional stakeholders.
The audit has run regional NELA Quality Improvement workshops to assist hospital sites in using their local data to improve patient care
In addition, peer-reviewed publications have added to literature on emergency bowel surgery. For example, NELA data have been combined with death data to demonstrate that patients with anaemia are at a higher risk of mortality and morbidity following surgery. Data from NELA and NHS England-held HES/Mortality datasets have also been published showing that older emergency bowel surgery patients (aged 65+) experience worse outcomes in terms of mortality, length of stay, and discharge to care-home accommodation than younger patients.
Statistics:
Nearly 30,000 patients undergo emergency bowel surgery each year in England and Wales. Since NELA’s inception:
- Length of hospital stay after emergency bowel surgery has decreased from 19.3 days in NELA’s first year to 11 days in the most recent report. In addition to getting patients home quicker this also represents a cost-savings of around £42.4 million to participating trusts.
- More than 90% of high-risk patients now have a consultant surgeon and consultant anaesthetist present in theatre during surgery. This is an improvement from 82.3% in 2016/17.
- 85% of patients now have an assessment of mortality risk documented preoperatively. This is an improvement from 74.5% in 2016/17.
Datasets on the current version
Legal basis for provision: Health and Social Care Act 2012 - s261(5)(d)
| Dataset | Type of data | Sensitivity | Frequency | Confidential data |
|---|---|---|---|---|
| Civil Registrations of Death | Identifiable | Sensitive | Ongoing | Section 251 NHS Act 2006 |
| Demographics | Identifiable | Sensitive | Ongoing | Section 251 NHS Act 2006 |
| HES-ID to MPS-ID HES Admitted Patient Care | Identifiable | Non-Sensitive | One-Off | Section 251 NHS Act 2006 |
| Hospital Episode Statistics Admitted Patient Care (HES APC) | Identifiable | Non-Sensitive | Ongoing | Section 251 NHS Act 2006 |
| Hospital Episode Statistics Admitted Patient Care (HES APC) | Identifiable | Non-Sensitive | Ongoing | Section 251 NHS Act 2006 |
| Hospital Episode Statistics Critical Care (HES Critical Care) | Identifiable | Non-Sensitive | Ongoing | Section 251 NHS Act 2006 |
| MRIS - Cause of Death Report | Identifiable | Sensitive | Ongoing | Section 251 NHS Act 2006 |
| MRIS - Cohort Event Notification Report | Identifiable | Sensitive | Ongoing | Section 251 NHS Act 2006 |
| MRIS - Flagging Current Status Report | Identifiable | Sensitive | Ongoing | Section 251 NHS Act 2006 |
Files released
Files released counts only files released externally by DARS. Access granted in NHS England's own systems, such as its Secure Data Environment, is not included.
Patient opt-outs were applied to 48 of the 86 files released under this agreement, across every version. About opt-outs
Files released against version 11.5 of this agreement, summarised by dataset.
| Dataset | Files | First released | Last released | Opt-outs applied |
|---|---|---|---|---|
| Hospital Episode Statistics Admitted Patient Care (HES APC) | 3 | August 2025 | October 2025 | No |
| Civil Registrations of Death | 1 | August 2025 | August 2025 | No |
| Demographics | 1 | August 2025 | August 2025 | No |
Version history
The register lists each renewal of this agreement as a separate row. This site has 7 versions — earlier versions existed before this site's records begin.
DARS-NIC-355855-R4G6G-v11.5 6 June 2025 to 21 November 2028
- Title
- National Emergency Laparotomy Audit (NELA)
- Commercial
- No
- Sublicensing
- No
- Datasets
- 9
- Files released
- 5
Datasets: Civil Registrations of Death; Demographics; HES-ID to MPS-ID HES Admitted Patient Care; Hospital Episode Statistics Admitted Patient Care (HES APC); Hospital Episode Statistics Admitted Patient Care (HES APC); Hospital Episode Statistics Critical Care (HES Critical Care); MRIS - Cause of Death Report; MRIS - Cohort Event Notification Report; MRIS - Flagging Current Status Report
What changed from DARS-NIC-355855-R4G6G-v10.3
Text removed is struck through; text added is underlined. Unchanged paragraphs are summarised rather than repeated.
| Field | Was | Became |
|---|---|---|
| Start date | 2025-06-06 | |
| End date | 2028-11-21 | |
| Civil Registrations of Death: type of data | Identifiable | |
| Demographics: type of data | Identifiable | |
| HES-ID to MPS-ID HES Admitted Patient Care: type of data | Identifiable | |
| Hospital Episode Statistics Admitted Patient Care (HES APC): type of data | Identifiable | |
| Hospital Episode Statistics Critical Care (HES Critical Care): type of data | Identifiable |
Objective for processing
[19 paragraphs unchanged]
NELA holds data from 2012/13 and requires Demographics and Civil Registration (deaths)
data (on a quarterly basis) and
data,
Hospital Episode Statistics (HES) Admitted Patient Care
(APC)
and Critical Care
(CC)
data
(on an annual basis)
over the course of this Agreement.
[1 paragraph unchanged]
Each
year
year,
NELA also requires NHS England to provide the previous
three
two
years’ worth of HES data for the new cohort which is submitted
[52 words unchanged]
enrich the data submitted by hospitals for the purposes of the audit.
The data required is pseudonymised data.
No direct patient identifiers are needed for analysis, however the information needs
[14 words unchanged]
the NELA data set for analysis in line with the audit’s aims.
[3 paragraphs unchanged]
NELA has received Section 251 NHS Act 2006 support (reference - CAG
[29 words unchanged]
Wales from December 2013 onwards and linkage of this data to HES,
ONS
mortality data and Intensive Care National Audit and Research Centre (ICNARC) data
[6 words unchanged]
Agreement between ICNARC and the RCoA, not an Agreement with NHS England).
[4 paragraphs unchanged]
The above datasets help ensure that the audit has accurate information on mortality outcomes, including information on diagnoses associated with the death. This allows NELA to compute deaths
within 30- and 90- days of
following
surgery, a key metric for the audit.
It is also used to compute days alive out of hospital, another outcome measure for the audit.
[16 paragraphs unchanged]
The NELA study team collaborates with its patient and families involvement group (PAFIG) which serves to provide insight and accountability to the NELA project team. The PAFIG are a group of individuals with lived experience of an emergency laparotomy. The core responsibilities of the PAFIG are to: (1) provide the lay perspective on the NELA, representing the views of patients and their families with experience of emergency laparotomy surgery; (2) ensure that positive outcomes for the end user, the emergency laparotomy patient, remains a key focus of the work; (3) provide feedback on materials related to the NELA including providing comments from a lay perspective into final reports; (4) advise on any additional patient and public involvement that may strengthen the project.
NELA have lay representation on our project board (high-level governance group) and our clinical reference group.
An information leaflet, outlining in lay person terms the objectives of NELA, was published in October
2018. The information leaflet has since been reviewed and simplified by
2018 with input from
the Patient and Public Involvement Manager at the
RCoA.
RCoA and patient representatives.
This
has been shared once more with the PAFIG for their thoughts. Upon finalization, this
document
will be posted to the NELA
is available on our
website
and shared with the PAFIG and participating sites for wider distribution (the patient information leaflet can be found on the following webpage: https://www.nela.org.uk/Patient-Information#pt)
(https://data.nela.org.uk/information/nelappi).
[4 paragraphs unchanged]
HQIP and NHS England both rely on Article 6 (1) (e) of
[53 words unchanged]
other national bodies with statutory responsibilities to improve quality of health care
servicTo
service. To
process special categories of personal data, HQIP rely on Article 9 (2)
[166 words unchanged]
contract with NHS providers of services to mandate participation within NCAPOP audits.
[3 paragraphs unchanged]
Processing activities
[1 paragraph unchanged]
NHS England link the patient identifiers supplied by the RCoA to the
[6 words unchanged]
Civil Registration (deaths) and Demographics data and return to the RCoA a
pseudonymised
file with the NELA ID attached to each individual record.
[1 paragraph unchanged]
In line with the current contract with HQIP and the introduction of
[83 words unchanged]
their own unsuppressed record-level data. The following data items will be returned:
admission method,
patient year of birth, patient gender, date of admission, date of operation,
[8 words unchanged]
that has emanated from the Trust will be returned to the Trust.
NELA collects data on a continuous basis each year.
Audit years correspond to 1 December until 30 November the following year. Participating sites are given until
At
the end of
January to submit their
the
data
for the preceding audit year. In early February,
collection year,
the NELA team export data from the NELA data entry portal (this
[7 words unchanged]
not NHS England data). The data is securely saved to RCoA servers.
In February/March, after the NELA dataset has been appropriately
Once
cleaned, a file of identifiers is sent to NHS England for linkage to HES, Mortality and Demographic data via Secure Electronic File Transfer (SEFT).
[6 paragraphs unchanged]
Expected output
NELA is commissioned to produce a ‘state of the nation’ annual report
[10 words unchanged]
in June 2015, July 2016, October 2017, November 2018, December 2019, November
2020
2020, November 2021, February 2023,
and
November 2021
October 2024
- these are available to view on the NELA website
(https://www.nela.org.uk/).
(data.nela.org.uk).
Subsequent reports are scheduled to be published yearly, while ad hoc interim
[53 words unchanged]
green (RAG) rate the success of each hospital in meeting each metric.
[1 paragraph unchanged]
Publications are also anticipated to be / have been distributed via social media (@NELANews on
Twitter),
X/Twitter),
newsletters, and website updates
(https://www.nela.org.uk/reports).
(data.nela.org.uk).
[2 paragraphs unchanged]
For each annual report, the NELA team develop a communication plan that
[13 words unchanged]
available document. Methods of communication for the annual report include social media
(Twitter
(X/Twitter
posts), website updates to the both the RCoA and NELA websites, newsletter
[44 words unchanged]
government. Ad hoc interim reports are communicated and disseminated in similar ways.
Update under v10:
The data received under this DSA will contribute to upcoming NELA state of the nation reports.
The data received under this DSA will contribute to upcoming NELA state of the nation reports. An addendum to NELA's 8th annual report is expected shortly, which includes data from NHS England to support the case ascertainment figures and mortality and outlier analyses. The 9th annual report, which also relies on data from NHS England, is pending receipt of the data being requested under v10 of the DSA.
Expected measurable benefits
[7 paragraphs unchanged]
Update under v10:
NELA anticipate seeing benefits from the data from the audit combined with data from NHS England to enable NHS providers to identify where they are performing well and look to improve areas that are not performing well. This is anticipated to have an overall positive impact on patient care for those undergoing emergency laparotomy.
As neither annual report has yet been published, benefits are pending. However, NELA anticipate seeing benefits from the data from the audit combined with data from NHS England to enable NHS providers to identify where they are performing well and look to improve areas that are not performing well. This is anticipated to have an overall positive impact on patient care for those undergoing emergency laparotomy.
Benefits reported
[2 paragraphs unchanged]
The NELA team have seen promising trends on a national level in most key metrics since the start of the audit.
In the most recent report, five metrics achieved compliance on a national level, while progress was also seen in relation to most other metrics.
Different hospitals have different levels of compliance with each metric. The time
[12 words unchanged]
but the NELA team are encouraged by the progress seen since inception.
NHS England data is being used by the Care Quality Commission (CQC)
[13 words unchanged]
including case ascertainment and 30-day mortality, with small numbers suppressed), on the
MyNHS
Model Health System
website (no record level data - all aggregated with small numbers suppressed) and as part of the NHS England Best Practice Tariff.
[1 paragraph unchanged]
The audit has made recommendations in annual reports for local participating sites to
follow. Includes recommendation for NELA Local Leads, Clinical Directors, Commissioners, Medical Directors, Multidisciplinary Teams,
follow and have now moved toward higher-level recommendations aimed at commissioners, funders,
Royal Colleges and other professional stakeholders.
[4 paragraphs unchanged]
- Length of hospital stay after emergency bowel surgery has decreased from 19.3 days in NELA’s first year to
15.1
11
days in the most recent report. In addition to getting patients home quicker this also represents a cost-savings of around £42.4 million to participating trusts.
- In NELA’s first year of reporting, only 44% of hospitals had case ascertainment of 85% or higher. In the most recent NELA report, this increased to 58% of hospitals.
[2 paragraphs unchanged]
DARS-NIC-355855-R4G6G-v10.3 12 February 2024 to 21 November 2025
- Title
- National Emergency Laparotomy Audit (NELA)
- Commercial
- No
- Sublicensing
- No
- Datasets
- 9
- Files released
- 10
Datasets: Civil Registrations of Death; Demographics; HES-ID to MPS-ID HES Admitted Patient Care; Hospital Episode Statistics Admitted Patient Care (HES APC); Hospital Episode Statistics Admitted Patient Care (HES APC); Hospital Episode Statistics Critical Care (HES Critical Care); MRIS - Cause of Death Report; MRIS - Cohort Event Notification Report; MRIS - Flagging Current Status Report
What changed from DARS-NIC-355855-R4G6G-v9.21
Text removed is struck through; text added is underlined. Unchanged paragraphs are summarised rather than repeated.
| Field | Was | Became |
|---|---|---|
| Start date | 2024-02-12 |
Objective for processing
On 1 February 2023, NHS Digital merged with NHS England. NHS England DARS has assumed responsibility for all activities previously undertaken by NHS Digital. The merger was completed by a statute change. Any reference made to NHS Digital within this Data Sharing Agreement is in reference to the merged organisation known as NHS England and is referred to as NHS England DARS.
[2 paragraphs unchanged]
Throughout the Agreement NELA, the NELA team, and the NELA project team
[63 words unchanged]
employees who hold honorary contracts with the RCoA will access the NHS
England’s DARS
England
data disseminated.
[17 paragraphs unchanged]
NELA supplies a cohort to NHS
England’s DARS
England
on an annual basis. The cohort submitted to NHS
England’s DARS
England
is different each year - all patients over the age of 18
[71 words unchanged]
Minimisation the data requested has been limited to this cohort of patients.
Each year NELA also requires NHS
England’s DARS
England
to provide the previous three years’ worth of HES data for the
[57 words unchanged]
enrich the data submitted by hospitals for the purposes of the audit.
The data required is pseudonymised data. No direct patient identifiers are needed
[5 words unchanged]
needs to be on an individual level in order to link NHS
England’s DARS
England
data to the NELA data set for analysis in line with the audit’s aims.
[1 paragraph unchanged]
Given the size and scope of the audit, the NELA team feel that requesting data from NHS
England’s DARS
England
is the most efficient way to obtain the data required.
NELA is only requesting data required for the purposes of the audit
[17 words unchanged]
data that can be obtained from the hospitals is required from NHS
England’s DARS.
England.
As aforementioned, the NHS
England’s DARS
England
data supplements and enhances the data the audit dataset already holds.
NELA has received Section 251 NHS Act 2006 support (reference - CAG
[59 words unchanged]
separate Agreement between ICNARC and the RCoA, not an Agreement with NHS
England’s DARS).
England).
Support has also been received from HRA CAG to defer the application
[87 words unchanged]
– the case ascertainment to NELA is over 85%. Figures from NHS
England’s DARS
England
show that rates of registration with the National Data Opt-Out vary, exceeding
[30 words unchanged]
the results. The data quoted is derived from data available here: https://digital.nhs.uk/data-and-information/publications/statistical/national-data-opt-out/april-2022.
[11 paragraphs unchanged]
Funders include NHS England and the Welsh government. While the audit is
[27 words unchanged]
involved in the day-to-day management and do not have access to NHS
England’s DARS
England
data.
The RCoA were commissioned by HQIP to deliver the audit. As commissioners,
[32 words unchanged]
of NELA-generated reports for review and approval. Where the reports contain NHS
England’s DARS
England
data, the data is aggregated with small numbers suppressed in line with
[5 words unchanged]
audit’s contract with HQIP specifies how data should be protected and processed.
The RCoA also work with the Clinical Effectiveness Unit (CEU) at the
[13 words unchanged]
developing the audit methodology and analysis of the audit data. The NHS
England’s DARS
England
data is also stored and processed on servers located at the RCS
[10 words unchanged]
in determining the purposes and means of the processing of the NHS
England’s DARS
England data
requested under this Agreement. That responsibility lies solely with NHS England and HQIP.
[1 paragraph unchanged]
NELA also seeks guidance from a clinical reference group made up of
[6 words unchanged]
these individuals nor their organisations have access to NELA data or NHS
England’s DARS
England
data; they also do not determine the purpose or means of the processing of personal data.
[2 paragraphs unchanged]
Other than the NCAPOP, NELA is not part of any wider projects.
[20 words unchanged]
Only data collected as part of the audit (not data from NHS
England’s DARS)
England)
are shared.
[11 paragraphs unchanged]
Processing activities
The RCoA send a file of patient identifiers, including NHS number, date of birth,
gender,
postcode, and NELA ID to NHS
England’s DARS.
England.
NHS
England’s DARSlink
England link
the patient identifiers supplied by the RCoA to the HES Critical Care,
[14 words unchanged]
a pseudonymised file with the NELA ID attached to each individual record.
Transferral process - data received from NHS
England’s DARS
England
is downloaded by the RCoA to secure, access-restricted servers. All data received from NHS
England’s DARS
England
is also shared with the RCS Clinical Effectiveness Unit (CEU) via a
[37 words unchanged]
NELA dataset and HES, Civil Registration (deaths) and Demographics data from NHS
England’s DARS
England
using the NELA ID. It is this pseudonymised file which is used for the analysis.
In line with the current contract with HQIP and the introduction of
[36 words unchanged]
will return to each Trust the data they originally submitted to NHS
England’s DARS
England
as Secondary Use Services (SUS) data (transformed by NHS
England’s DARS
England
into HES) so that the Trusts can identify patients that have not
[44 words unchanged]
that has emanated from the Trust will be returned to the Trust.
NELA collects data on a continuous basis each year. Audit years correspond
[39 words unchanged]
entry portal (this only comprises data entered by participating sites, not NHS
England’s DARS
England
data). The data is securely saved to RCoA servers. In February/March, after the NELA dataset has been appropriately cleaned, a file of identifiers is sent to NHS
England’s DARS
England
for linkage to HES, Mortality and Demographic data via Secure Electronic File Transfer (SEFT).
In all cases, the data received from NHS
England’s DARS
England
will not be linked back to the identifiable NELA database held at
[68 words unchanged]
to validate the data entered into NELA. No data provided by NHS
England’s DARS
England
is sent to RCoA to correct fields in the NELA database.
[2 paragraphs unchanged]
There is no requirement to re-identify individuals and the NELA team will make no attempt to re-identify individuals contained in the NHS
England’s DARS
England
data.
The majority of the work conducted on NHS
England’s DARS
England
data will be done by the RCS or RCoA statisticians/data analysts who
[72 words unchanged]
needed for each project. Similar procedures are in place at the RCS.
Harbor Solutions Limited provide back-up data storage for the RCoA, and process
[5 words unchanged]
of secure retention. Harbor Solutions Limited have no means to access NHS
England’s DARS
England
data. Any access to the data held under this agreement would be
[34 words unchanged]
access to the servers that hold the data disseminated under this Agreement.
Expected output
[3 paragraphs unchanged]
So far, 7 peer-reviewed publications that used combined NELA data and data from NHS
England’s DARS
England
have been produced by the NELA project team.
[2 paragraphs unchanged]
Update under v10:
The data received under this DSA will contribute to upcoming NELA state of the nation reports. An addendum to NELA's 8th annual report is expected shortly, which includes data from NHS England to support the case ascertainment figures and mortality and outlier analyses. The 9th annual report, which also relies on data from NHS England, is pending receipt of the data being requested under v10 of the DSA.
Expected measurable benefits
[7 paragraphs unchanged] Update under v10: As neither annual report has yet been published, benefits are pending. However, NELA anticipate seeing benefits from the data from the audit combined with data from NHS England to enable NHS providers to identify where they are performing well and look to improve areas that are not performing well. This is anticipated to have an overall positive impact on patient care for those undergoing emergency laparotomy.
Benefits reported
[3 paragraphs unchanged]
NHS
England’s DARS
England
data is being used by the Care Quality Commission (CQC) on their Dashboard (hospital-level data - includes data derived from NHS
England’s DARS
England
data, including case ascertainment and 30-day mortality, with small numbers suppressed), on
[12 words unchanged]
numbers suppressed) and as part of the NHS England Best Practice Tariff.
In terms of exploitation of results, there may be instances where data
[111 words unchanged]
audit commissioner, but the audit acknowledges all those that contribute including NHS
England’s DARS.
England.
The coefficients and calculations used are open to all and published on the NELA website so anyone can make use of it.
[2 paragraphs unchanged]
In addition, peer-reviewed publications have added to literature on emergency bowel surgery.
[20 words unchanged]
risk of mortality and morbidity following surgery. Data from NELA and NHS
England’s DARS-held
England-held
HES/Mortality datasets have also been published showing that older emergency bowel surgery
[9 words unchanged]
mortality, length of stay, and discharge to care-home accommodation than younger patients.
[6 paragraphs unchanged]
Objective for processing
BACKGROUND AND PURPOSE
The National Emergency Laparotomy Audit (NELA) was commissioned in 2011 by the Healthcare Quality Improvement Partnership (HQIP) and is funded by NHS England and the Welsh government. NELA first began collecting data in 2013 and has continued to do so on a regular basis ever since. NELA’s aims are to collect and publish high-quality comparative information from all hospitals in England and Wales at which emergency laparotomies (an emergency laparotomy is a major operation where the surgeon has to cut open the abdomen) are performed, in order to drive quality improvement in the care of these patients. It was established in response to the comparatively high death rate after emergency laparotomy, and the substantial variation in this rate between hospitals.
Throughout the Agreement NELA, the NELA team, and the NELA project team are interchangeable terms used and refer to the core NELA team that manage the day-to-day operations and analysis. The NELA team comprises substantive employees of both the Royal College of Surgeons of England (RCS) and Royal College of Anaesthetists (RCoA) as well as members who hold a signed memorandum of understanding with RCoA. Only substantive employees of the RCoA or RCS or non-substantive employees who hold honorary contracts with the RCoA will access the NHS England data disseminated.
The objectives of the Audit are:
1. To enable secondary care providers to improve the delivery of care to patients undergoing emergency laparotomy using information produced by the audit.
2. To provide comparative information on the organisation of care by providers of emergency laparotomy.
3. To provide comparative information on patient outcomes following surgery for emergency laparotomy.
4. To facilitate the development of effective change (quality improvement) initiatives and thereby spread examples of best practice to help local providers make the best possible use of audit results.
NELA audits care provided by participating hospitals against a set of key standards including:
• Case Ascertainment
• Computerised tomography (CT) scans reported by an in-house consultant radiologist before surgery
• Access to theatres within a time frame appropriate for the urgency of surgery
• Documented assessment, before surgery, of the risks of surgery
• Review before surgery by consultant surgeon, anaesthetist, and intensivist for high-risk patients
• Presence of consultant surgeon and anaesthetist in theatre for high-risk patients
• Admission to critical care after surgery for high-risk patients
• Assessment by a care of the older person specialist for those aged 65+ and frail or aged 80+
• 30-day mortality
DATA SUMMARY
NELA holds data from 2012/13 and requires Demographics and Civil Registration (deaths) data (on a quarterly basis) and Hospital Episode Statistics (HES) Admitted Patient Care and Critical Care data (on an annual basis) over the course of this Agreement.
NELA supplies a cohort to NHS England on an annual basis. The cohort submitted to NHS England is different each year - all patients over the age of 18 years who, in the most recent NELA-defined audit year, have had a general surgical emergency laparotomy in any NHS hospital in England including emergency gastrointestinal procedures on the stomach, large and small bowel, for conditions such as perforation, bleeding, abdominal abscess or obstruction, via open or laparoscopic approaches. It is expected that there will be around 25,000 - 30,000 such patients each year. To address the UK GDPR Principle of Data Minimisation the data requested has been limited to this cohort of patients.
Each year NELA also requires NHS England to provide the previous three years’ worth of HES data for the new cohort which is submitted annually. No historic data is released for cohorts submitted in previous audit years; only those who have undergone an emergency laparotomy procedure within the most recent NELA year. There are therefore no duplications of data. The retained data and additional data requested under this iteration of the Agreement will be used to enrich the data submitted by hospitals for the purposes of the audit.
The data required is pseudonymised data. No direct patient identifiers are needed for analysis, however the information needs to be on an individual level in order to link NHS England data to the NELA data set for analysis in line with the audit’s aims.
NELA is a national audit that includes all eligible patients of emergency laparotomy in England and Wales. Therefore, the audit requires data for the whole of England.
Given the size and scope of the audit, the NELA team feel that requesting data from NHS England is the most efficient way to obtain the data required.
NELA is only requesting data required for the purposes of the audit and only for eligible emergency bowel surgeries. The audit already collects an extensive dataset directly from hospitals—no data that can be obtained from the hospitals is required from NHS England. As aforementioned, the NHS England data supplements and enhances the data the audit dataset already holds.
NELA has received Section 251 NHS Act 2006 support (reference - CAG 5-07(d)/2013) from the Health Research Authority (HRA) Confidential Advisory Group (CAG) to cover access to identifiable data on patients aged 18 and over undergoing emergency laparotomy in England and Wales from December 2013 onwards and linkage of this data to HES, ONS mortality data and Intensive Care National Audit and Research Centre (ICNARC) data (ICNARC data facilitated under a separate Agreement between ICNARC and the RCoA, not an Agreement with NHS England).
Support has also been received from HRA CAG to defer the application of the National Data Opt-Out (NDO) in relation to NELA. There are two points of rationale: (1) patient safety – if the NDO is implemented, clinicians may be unable to use the NELA webtool to obtain patient risk scores. Several clinical teams have flagged the risk to NELA data entry with the NELA study team due to the increased workload related to checking for the NDO prior to data entry in real-time, or fear of data breaches to diminished engagement with the audit; (2) introduction of bias – the case ascertainment to NELA is over 85%. Figures from NHS England show that rates of registration with the National Data Opt-Out vary, exceeding 10% in one in twenty GP practices. The Care Quality Commission uses information from NELA to inform their surveillance approach and to plan and support inspections. Missing information may bias the results. The data quoted is derived from data available here: https://digital.nhs.uk/data-and-information/publications/statistical/national-data-opt-out/april-2022.
NELA applied for, and received, exemption from applying the national data-opt. Therefore, data from anyone on the opt-out register can continue to be entered and used as part of NELA. NELA will continue to remove any individual patient who get in touch with NELA or their care team indicating that they do not wish to have their data included in NELA, as per the CAG conditions of support. Therefore, local opt-outs will be applied.
JUSTIFICATION FOR DATA
- Demographics data and Civil Registration (deaths) data:
The above datasets help ensure that the audit has accurate information on mortality outcomes, including information on diagnoses associated with the death. This allows NELA to compute deaths within 30- and 90- days of surgery, a key metric for the audit.
- Hospital Episode Statistics (HES) Critical Care data:
This data allows for an investigation of the patterns of critical care across NHS Hospitals and for an examination of whether patients with similar conditions and risk of death are being treated in a consistent way that is compatible with guideline recommendations. In line with the NELA team’s desire to continue to look for ways to enhance the audit, participants and stakeholders fed back to the NELA team that information about the delivery of critical care to emergency laparotomy patients would help to inform the development of local Quality Improvement initiatives. To this end, the project uses Critical Care data to develop performance indicators to provide hospitals with this information.
- HES Admitted Patient Care data:
This data is required to provide information on the number of expected emergency laparotomy procedures in any given audit year (case ascertainment). This is critical information and allows NELA to compute case ascertainment rates for each participating hospital - a metric needed to determine the level of completeness of reporting for each hospital and to provide an insight into the representativeness of the audit population. Information from this dataset is also required to examine data by deprivation score, which can provide important information on equity of services in different regions. Other variables from this dataset are also needed to provide information on key measures like patient comorbidities and longer-term outcomes like readmission rates.
The data from HES Critical Care and Admitted Patient Care also helps the NELA team to improve risk-adjustment models by using extensive information on comorbid conditions held within HES (eg. to calculate the Charlson Comorbidity score - predicts 10-year survival in patients with multiple comorbidities).
DATA CONTROLLERS / DATA PROCESSORS
HQIP and NHS England are joint data controllers for the purposes of this Data Sharing Agreement. RCoA, RCS, Bluesource Information Limited and Harbor Solutions Limited are data processors.
Funders include NHS England and the Welsh government. While the audit is commissioned by HQIP, HQIP themselves are commissioned by NHS England to commission the Audit. HQIP and NHS England provide general oversight for the audit but are not involved in the day-to-day management and do not have access to NHS England data.
The RCoA were commissioned by HQIP to deliver the audit. As commissioners, HQIP ensure that the RCoA deliver contracted elements of the audit on time and within budget, in addition to serving as data controllers. HQIP, NHS England, and the Welsh government receive copies of NELA-generated reports for review and approval. Where the reports contain NHS England data, the data is aggregated with small numbers suppressed in line with the HES analysis guide. The audit’s contract with HQIP specifies how data should be protected and processed.
The RCoA also work with the Clinical Effectiveness Unit (CEU) at the RCS to support the delivery of the audit. RCS have a role in developing the audit methodology and analysis of the audit data. The NHS England data is also stored and processed on servers located at the RCS CEU. Both the RCoA and RCS however have no role in determining the purposes and means of the processing of the NHS England data requested under this Agreement. That responsibility lies solely with NHS England and HQIP.
The RCoA have employed Bluesoure Information Limited to provide secure back-up storage of the data. In turn Bluesource have contracted Harbor Solutions Limited to provide these services. Per Part 1, Section 3(4)(a) of the Data Protection Act 2018, as the storage of data is considered to be a type of processing, Harbor Solutions Limited and Bluesource Information Limited are considered data processors. No patient identifiable data is stored on the back-up servers provided by Harbor Solutions Limited. The terms of the contract Bluesource Information Limited has with Harbor Solutions Limited mirror the terms agreed between Bluesource Information Limited and the RCoA.
NELA also seeks guidance from a clinical reference group made up of representatives from key stakeholder organisations. Neither these individuals nor their organisations have access to NELA data or NHS England data; they also do not determine the purpose or means of the processing of personal data.
WIDER PROGRAMMES
NELA forms part of the National Clinical Audit and Patient Outcomes Programme (NCAPOP). HQIP, as commissioner of the NCAPOP, are responsible for project specification development, procurement and extension activities, contract management and authorising data sharing requests. NHS England are responsible for determining which projects/topics are included in the NCAPOP and, as a funder, participate in specification development, procurement and project extension activities and authorises, as chair of the specification development meetings, the publication of project outputs. These specifications set out the purpose of the project, the patient groups and clinical services to evaluate and the types of data to collect. NHS England are also a representative on the HQIP Data Access Request Group which authorises data sharing applications from third parties.
Other than the NCAPOP, NELA is not part of any wider projects. From time to time however, NELA collaborates with external researchers by allowing access to NELA data via an application process. Only data collected as part of the audit (not data from NHS England) are shared.
PATIENT AND PUBLIC INVOLVEMENT (PPI)
The NELA study team collaborates with its patient and families involvement group (PAFIG) which serves to provide insight and accountability to the NELA project team. The PAFIG are a group of individuals with lived experience of an emergency laparotomy. The core responsibilities of the PAFIG are to: (1) provide the lay perspective on the NELA, representing the views of patients and their families with experience of emergency laparotomy surgery; (2) ensure that positive outcomes for the end user, the emergency laparotomy patient, remains a key focus of the work; (3) provide feedback on materials related to the NELA including providing comments from a lay perspective into final reports; (4) advise on any additional patient and public involvement that may strengthen the project.
An information leaflet, outlining in lay person terms the objectives of NELA, was published in October 2018. The information leaflet has since been reviewed and simplified by the Patient and Public Involvement Manager at the RCoA. This has been shared once more with the PAFIG for their thoughts. Upon finalization, this document will be posted to the NELA website and shared with the PAFIG and participating sites for wider distribution (the patient information leaflet can be found on the following webpage: https://www.nela.org.uk/Patient-Information#pt)
NELA convened a meeting with its patient and families involvement group (PAFIG) on 27th July 2022 to discuss the deferral of the national data opt-out. The opt-out legislation was reviewed in general and an overview of the NELA exemption application was provided as a basis for discussion.
One member noted that the information collected as part of NELA was really important in that it improves surgery; she thought it was strange that anyone would want to opt-out of such a programme. She also noted that the information about mortality risk was particularly important as this impacts all care received subsequently. One of the members asked if there was still an option for patients to withdraw after the exemption comes into place and the NELA team indicated that there was, through previously established withdrawal procedures. When specifically asked if members had any objections to the exemption being applied, no objections were received.
In the 27th of July meeting of the PAFIG, other modes of communication were discussed. A video was also suggested. The NELA team will look to produce a video and/or poster regarding the opt-out which can be posted to the website and distributed to local NELA leads within participating hospitals which can be further distributed to patients.
LEGAL BASIS FOR PROCESSING
HQIP and NHS England both rely on Article 6 (1) (e) of the General Data Protection Regulation as their lawful basis for processing personal data - "processing is necessary for the performance of a task carried out in the public interest or in the exercise of official authority vested in the controller". This is justified through commissioning arrangements which link back to NHS England and other national bodies with statutory responsibilities to improve quality of health care servicTo process special categories of personal data, HQIP rely on Article 9 (2) (i) - "processing is necessary for reasons of public interest in the area of public health, such as protecting against serious cross-border threats to health or ensuring high standards of quality and safety of health care and of medicinal products or medical devices, on the basis of Union or Member State law which provides for suitable and specific measures to safeguard the rights and freedoms of the data subject, in particular professional secrecy". This is justified as the data is required for audit purposes - for improvement and ensuring high standards and quality/safe care. The Secretary of State has a legal duty under section 2 of the Health and Social Care Act 2012 to continuously improve the quality of health care services. NHS England has a legal duty under the NHS Act 2006 section 13e to improve quality of healthcare services . The Secretary of State and NHS England exercise these duties through the NHS England contract with HQIP to commission NELA and the NHS standard contract with NHS providers of services to mandate participation within NCAPOP audits.
Recital 54 of GDPR explains that:
The processing of special categories of personal data may be necessary for reasons of public interest in the areas of public health without consent of the data subject. Such processing should be subject to suitable and specific measures so as to protect the rights and freedoms of natural persons. In that context, ‘public health’ should be interpreted as defined in Regulation (EC) No 1338/2008 of the European Parliament and of the Council, namely all elements related to health, namely health status, including morbidity and disability, the determinants having an effect on that health status, health care needs, resources allocated to health care, the provision of, and universal access to, health care as well as health care expenditure and financing, and the causes of mortality. Such processing of data concerning health for reasons of public interest should not result in personal data being processed for other purposes by third parties such as employers or insurance and banking companies.
To process special categories of personal data, NHS England rely on Article 9(2)(h) - "Processing is necessary for the purposes of preventive or occupational medicine, for the assessment of the working capacity of the employee, medical diagnosis, the provision of health or social care or treatment or the management of health or social care systems and services on the basis of Union or Member State law or pursuant to contract with a health professional and subject to the conditions and safeguards referred to in paragraph 3". This is justified as NHS England are responsible for the provision of health and social care, and the management of systems and compliance. Members of the NELA project team employed by the NHS will be subject to standard NHS confidentiality agreements.
Expected output
NELA is commissioned to produce a ‘state of the nation’ annual report each year. Reports utilising patient level information have been published in June 2015, July 2016, October 2017, November 2018, December 2019, November 2020 and November 2021 - these are available to view on the NELA website (https://www.nela.org.uk/). Subsequent reports are scheduled to be published yearly, while ad hoc interim reports may also be published. These reports provide updates on standards of care for emergency bowel surgery patients. The reports provide aggregated information on key metrics like case ascertainment, mortality, timeliness to operating theatre, consultant delivered care, and risk assessment among others. The reports also produce this information at hospital-level and red, amber, green (RAG) rate the success of each hospital in meeting each metric.
In order to more widely disseminate the findings of the audit, additional scientific publications hope to be produced. These outputs are anticipated to be in the form of peer-reviewed articles and conference presentations e.g. the British Medical Journal (BMJ), British Journal of Anaesthesia (BJA), Association of Surgeons of Great Britain and Ireland (ASGBI) journal, and Association of Anaesthetists of Great Britain and Ireland (AAGBI) journal. Publications related to the audit methods (e.g. a risk-adjustment model) rather than information of clinical practice and outcomes are to be published on an ad hoc basis.
Publications are also anticipated to be / have been distributed via social media (@NELANews on Twitter), newsletters, and website updates (https://www.nela.org.uk/reports).
So far, 7 peer-reviewed publications that used combined NELA data and data from NHS England have been produced by the NELA project team.
All outputs and publications contain / will contain only aggregated data with small numbers suppressed in line with the HES Analysis Guide.
For each annual report, the NELA team develop a communication plan that is agreed with NELA’s commissioner, HQIP. Once approved, the report is a publicly available document. Methods of communication for the annual report include social media (Twitter posts), website updates to the both the RCoA and NELA websites, newsletter distribution to various audiences, including the RCoA members and NELA participating hospitals, webinars, and infographics designed for a lay audience. The report is also shared with NELA’s clinical reference group for distribution through their networks, as well as NELA’s funders—NHS England and the Welsh government. Ad hoc interim reports are communicated and disseminated in similar ways.
Update under v10:
The data received under this DSA will contribute to upcoming NELA state of the nation reports. An addendum to NELA's 8th annual report is expected shortly, which includes data from NHS England to support the case ascertainment figures and mortality and outlier analyses. The 9th annual report, which also relies on data from NHS England, is pending receipt of the data being requested under v10 of the DSA.
Benefits reported
The NELA audit is highly relevant to current clinical practice and publications have allowed for widespread dissemination of the findings amongst healthcare professionals. Linkage to the HES/Mortality data has allowed the Audit to report more extensively on patterns of care beyond the initial hospital admission and longer-term outcomes, such as 90-day mortality. The Audit is able to examine issues such as readmission rates and the most common reasons for these post-discharge complications - e.g. respiratory complications and anastomotic leaks. Data provided by the audit has an impact on provision of care for patients undergoing emergency bowel surgery and as noted below there have been tangible improvements in patient care since the audit's inception. Based on the NELA key metrics, the audit can see that patients now benefit from consultant-delivered care more than in earlier years of the audit, receive computerised tomography (CT) scans before surgery more often, have a pre-operative documentation of risk more often, and a higher percentage of high-risk patients are admitted directly to critical care after surgery than previously.
The NELA team have produced a quality improvement (QI) plan, approved by NELA’s commissioner, HQIP, which includes tools that the NELA team can offer to participating hospitals to improve patient care based on data produced by the audit. Ultimately, it is up to the participating hospitals to implement QI initiatives locally.
The NELA team have seen promising trends on a national level in most key metrics since the start of the audit. In the most recent report, five metrics achieved compliance on a national level, while progress was also seen in relation to most other metrics. Different hospitals have different levels of compliance with each metric. The time it takes to achieve compliance across all metrics will vary by trust but the NELA team are encouraged by the progress seen since inception.
NHS England data is being used by the Care Quality Commission (CQC) on their Dashboard (hospital-level data - includes data derived from NHS England data, including case ascertainment and 30-day mortality, with small numbers suppressed), on the MyNHS website (no record level data - all aggregated with small numbers suppressed) and as part of the NHS England Best Practice Tariff.
In terms of exploitation of results, there may be instances where data gathered as part of NELA is used for further research and the creation of new tools. An example of such development is the creation of the NELA risk prediction algorithm, which was developed to facilitate risk-adjusted comparisons of 30-day mortality rates between hospitals. It was brought about because other risk prediction tools were limited as they did not specifically focus on our patient population. Mortality data were used to develop the model so that 30-day postoperative mortality could be derived. The model is not intended to be used in isolation but as part of the overall clinical decision making process. All of the audit data is owned by HQIP as the audit commissioner, but the audit acknowledges all those that contribute including NHS England. The coefficients and calculations used are open to all and published on the NELA website so anyone can make use of it.
The audit has made recommendations in annual reports for local participating sites to follow. Includes recommendation for NELA Local Leads, Clinical Directors, Commissioners, Medical Directors, Multidisciplinary Teams, Royal Colleges and other professional stakeholders.
The audit has run regional NELA Quality Improvement workshops to assist hospital sites in using their local data to improve patient care
In addition, peer-reviewed publications have added to literature on emergency bowel surgery. For example, NELA data have been combined with death data to demonstrate that patients with anaemia are at a higher risk of mortality and morbidity following surgery. Data from NELA and NHS England-held HES/Mortality datasets have also been published showing that older emergency bowel surgery patients (aged 65+) experience worse outcomes in terms of mortality, length of stay, and discharge to care-home accommodation than younger patients.
Statistics:
Nearly 30,000 patients undergo emergency bowel surgery each year in England and Wales. Since NELA’s inception:
- Length of hospital stay after emergency bowel surgery has decreased from 19.3 days in NELA’s first year to 15.1 days in the most recent report. In addition to getting patients home quicker this also represents a cost-savings of around £42.4 million to participating trusts.
- In NELA’s first year of reporting, only 44% of hospitals had case ascertainment of 85% or higher. In the most recent NELA report, this increased to 58% of hospitals.
- More than 90% of high-risk patients now have a consultant surgeon and consultant anaesthetist present in theatre during surgery. This is an improvement from 82.3% in 2016/17.
- 85% of patients now have an assessment of mortality risk documented preoperatively. This is an improvement from 74.5% in 2016/17.
DARS-NIC-355855-R4G6G-v9.21 22 November 2022 to 21 November 2025
- Title
- National Emergency Laparotomy Audit (NELA)
- Commercial
- No
- Sublicensing
- No
- Datasets
- 9
- Files released
- 13
Datasets: Civil Registrations of Death; Demographics; HES-ID to MPS-ID HES Admitted Patient Care; Hospital Episode Statistics Admitted Patient Care (HES APC); Hospital Episode Statistics Admitted Patient Care (HES APC); Hospital Episode Statistics Critical Care (HES Critical Care); MRIS - Cause of Death Report; MRIS - Cohort Event Notification Report; MRIS - Flagging Current Status Report
What changed from DARS-NIC-355855-R4G6G-v8.4
Text removed is struck through; text added is underlined. Unchanged paragraphs are summarised rather than repeated.
| Field | Was | Became |
|---|---|---|
| Title | National Emergency Laparotomy Audit (NELA) | |
| Data controller basis | Joint Data Controller | |
| Start date | 2022-11-22 | |
| End date | 2025-11-21 | |
| Civil Registrations of Death: legal basis | Health and Social Care Act 2012 - s261(5)(d) | |
| Demographics: legal basis | Health and Social Care Act 2012 - s261(5)(d) | |
| HES-ID to MPS-ID HES Admitted Patient Care: legal basis | Health and Social Care Act 2012 - s261(5)(d) | |
| Hospital Episode Statistics Admitted Patient Care (HES APC): legal basis | Health and Social Care Act 2012 - s261(5)(d) | |
| Hospital Episode Statistics Admitted Patient Care (HES APC): type of data | Anonymised - ICO Code Compliant | |
| Hospital Episode Statistics Critical Care (HES Critical Care): legal basis | Health and Social Care Act 2012 - s261(5)(d) | |
| Hospital Episode Statistics Critical Care (HES Critical Care): type of data | Anonymised - ICO Code Compliant | |
| MRIS - Cause of Death Report: legal basis | Health and Social Care Act 2012 - s261(5)(d) | |
| MRIS - Cohort Event Notification Report: legal basis | Health and Social Care Act 2012 - s261(5)(d) | |
| MRIS - Flagging Current Status Report: legal basis | Health and Social Care Act 2012 - s261(5)(d) |
Data controllers: + NHS ENGLAND
Objective for processing
1. The objectives of the Audit are:
On 1 February 2023, NHS Digital merged with NHS England. NHS England DARS has assumed responsibility for all activities previously undertaken by NHS Digital. The merger was completed by a statute change. Any reference made to NHS Digital within this Data Sharing Agreement is in reference to the merged organisation known as NHS England and is referred to as NHS England DARS.
• To enable secondary care providers to improve the delivery of care to patients undergoing emergency laparotomy using information produced by the audit
BACKGROUND AND PURPOSE
• To provide comparative information on the organisation of care by providers of Emergency Laparotomy.
The National Emergency Laparotomy Audit (NELA) was commissioned in 2011 by the Healthcare Quality Improvement Partnership (HQIP) and is funded by NHS England and the Welsh government. NELA first began collecting data in 2013 and has continued to do so on a regular basis ever since. NELA’s aims are to collect and publish high-quality comparative information from all hospitals in England and Wales at which emergency laparotomies (an emergency laparotomy is a major operation where the surgeon has to cut open the abdomen) are performed, in order to drive quality improvement in the care of these patients. It was established in response to the comparatively high death rate after emergency laparotomy, and the substantial variation in this rate between hospitals.
• To provide comparative information on patient outcomes following surgery for Emergency Laparotomy.
Throughout the Agreement NELA, the NELA team, and the NELA project team are interchangeable terms used and refer to the core NELA team that manage the day-to-day operations and analysis. The NELA team comprises substantive employees of both the Royal College of Surgeons of England (RCS) and Royal College of Anaesthetists (RCoA) as well as members who hold a signed memorandum of understanding with RCoA. Only substantive employees of the RCoA or RCS or non-substantive employees who hold honorary contracts with the RCoA will access the NHS England’s DARS data disseminated.
• To facilitate the development of effective change (quality improvement) initiatives and thereby spread examples of best practice and help local providers make the best possible use of audit results
The objectives of the Audit are:
a. HQIP has put forward article 6(1)(e) ‘…for the performance of a task carried out in the public interest or in the exercise of official authority…’ article 9(2)(i) ‘…processing is necessary for reasons of public interest in the area of public health, such as ......... ensuring high standards of quality and safety of health care and of medicinal products or medical devices.…’ as the legal basis most appropriate for clinical audit.
1. To enable secondary care providers to improve the delivery of care to patients undergoing emergency laparotomy using information produced by the audit.
b. Emergency abdominal surgery (or emergency laparotomy) is associated with significant morbidity and mortality worldwide. The aim of the National Emergency Laparotomy Audit (NELA) is to enable the improvement of the quality of care of patients undergoing emergency laparotomy by providing high quality comparative information of the clinical practice and outcomes of all NHS providers of emergency laparotomy in England and Wales. NELA is a national clinical audit commissioned by the Healthcare Quality Improvement Partnership (HQIP) as part of the National Clinical and Patient Outcomes Programme (NCAPOP).
2. To provide comparative information on the organisation of care by providers of emergency laparotomy.
i. The audit has Section 251 approval to collect information on emergency laparotomy patients. Patients who do not want their data included can opt-out by emailing the NELA team or through the National Data Opt-Out portal.
3. To provide comparative information on patient outcomes following surgery for emergency laparotomy.
2. The analysis by the NELA project team will only involve pseudonymised datasets that link information submitted by NHS hospitals and data supplied by NHS Digital. Date of death (mortality data) comes from the hospitals if it occurs during the hospital admission. For deaths outside hospital, NELA uses the NHS Digital mortality data which is linked along with the NELA audit data to NHS Digital data and then analysed by substantive employees of the Royal College of Surgeons (RCS) and substantive or contracted employees of the Royal College of Anaesthetists (RCoA).
4. To facilitate the development of effective change (quality improvement) initiatives and thereby spread examples of best practice to help local providers make the best possible use of audit results.
The RCoA and RCS wish to link the patient records submitted to NELA with the Hospital Episode Statistics (HES) records for those patients. The NELA records relate only to an individual admission, and by linking to inpatient HES data, the Audit will be able to provide more precise and relevant information to NHS hospitals by allowing the RCoA and RCS to describe longer term outcomes (e.g., readmission rates) and to improve RCoA’s and RCS’s risk-adjustment models by using the extensive information on comorbid conditions held within HES (eg to calculate the Charlson Comorbidity score).
NELA audits care provided by participating hospitals against a set of key standards including:
The RCoA and RCS also wish to link the patient records submitted to NELA with the Mortality Data on a quarterly basis to enable the Audit to monitor changes in postoperative outcomes (both short and longer-term mortality) for those patients. Access to this linked information will support this national clinical audit to improve the quality of care within NHS hospitals for a high-risk patient group.
• Case Ascertainment
3. HQIP have commissioned the RCoA to deliver the audit. RCoA are working in partnership with the Clinical Effectiveness Unit of the RCS and therefore make up the NELA project team. There are no other organisations involved. HQIP act as data controllers for the national clinical audit but do not have access to any data collected or analysed by the RCoA and RCS who are the data processors. NELA began in 2013 and the requested historic data provides important data when looking to improve mortality and length of stay.
• Computerised tomography (CT) scans reported by an in-house consultant radiologist before surgery
4. As noted above, the RCoA and the RCS collaborate on NELA; no other organisations are involved. NELA’s primary purpose is to provide quality data to be used for clinical audit purposes; inclusion of HES and ONS mortality data help ensure the accuracy of the information. From time to time, NELA collaborate with external researchers by allowing access to NELA data after an application process. Only data collected as part of the audit (and not data from NHS Digital) are provided.
• Access to theatres within a time frame appropriate for the urgency of surgery
5. All patients over the age of 18 years, having a general surgical emergency laparotomy in all NHS hospitals in England and Wales are eligible for the audit and trusts/hospitals will submit their records. The aim is to include all emergency gastrointestinal procedures on the stomach, large and small bowel, for conditions such as perforation, bleeding, abdominal abscess or obstruction, via open or laparoscopic approaches. Emergency laparotomies following elective surgical complications will also be included in the NELA. The NELA includes all NHS hospitals in England and Wales that carry out emergency laparotomy. This includes any hospitals with acute admission, emergency departments, or specialist centres which carry out emergency laparotomy as a complication of other types of surgery.
• Documented assessment, before surgery, of the risks of surgery
6. NELA are requesting the following datasets:
• Review before surgery by consultant surgeon, anaesthetist, and intensivist for high-risk patients
a. Demographic data: data on date of death so as to ensure the audit has accurate information on this key outcome
• Presence of consultant surgeon and anaesthetist in theatre for high-risk patients
b. Civil registration: as mortality is a key outcome measure of the audit, it is important to have accurate information, including information on diagnoses associated with the death
• Admission to critical care after surgery for high-risk patients
c. Critical care data: These specific data would allow investigation of the patterns of critical care across NHS Hospitals and examine whether patients with similar conditions and risk of death are being treated in a consistent way that is compatible with guideline recommendations. The NELA team continue to look for ways in which to enhance the audit. The NELA team has received feedback from participants and stakeholders that information about the delivery of critical care to Emergency Laparotomy patients would help to inform the development of local Quality Improvement initiatives, and the project would use the Critical Care data to develop performance indicators to provide hospitals with this information.
• Assessment by a care of the older person specialist for those aged 65+ and frail or aged 80+
d. Admitted patient care data: this data is being requested to provide information on the number of expected emergency laparotomy procedures in any given audit year. This is critical information and allows NELA to compute case ascertainment rates for each participating hospital. Information from this dataset also allows us to examine data by deprivation score, which can provide important information on equity of services in different regions. Other variables from this dataset provide information on key measures like patient comorbidities and longer-term outcomes like readmission rates.
• 30-day mortality
All data requested is at record level in order to link cases within NELA to the NHS Digital datasets. Data requested is pseudonymised as no direct patient identifiers are needed for analysis. We are requesting data for all of England as NELA is a national audit. NELA do not believe there are less intrusive alternatives to collecting this data, but are committed to only requesting that data which is necessary for the purposes of the audit. Data are only being requested for those patients with emergency laparotomy and only for those variables that cannot be reliably or easily obtained through hospital medical records.
DATA SUMMARY
7. HQIP act as data controllers and commissioners for the audit as noted above. NELA seek guidance from a clinical reference group made up of representatives from key stakeholder organisations. Neither these individuals or their organisations have access to NELA data or NHS Digital data. Funders include NHS England and the Welsh government. They provide general oversight for the audit but are not involved in the day-to-day management and do not have access to data.
NELA holds data from 2012/13 and requires Demographics and Civil Registration (deaths) data (on a quarterly basis) and Hospital Episode Statistics (HES) Admitted Patient Care and Critical Care data (on an annual basis) over the course of this Agreement.
NELA supplies a cohort to NHS England’s DARS on an annual basis. The cohort submitted to NHS England’s DARS is different each year - all patients over the age of 18 years who, in the most recent NELA-defined audit year, have had a general surgical emergency laparotomy in any NHS hospital in England including emergency gastrointestinal procedures on the stomach, large and small bowel, for conditions such as perforation, bleeding, abdominal abscess or obstruction, via open or laparoscopic approaches. It is expected that there will be around 25,000 - 30,000 such patients each year. To address the UK GDPR Principle of Data Minimisation the data requested has been limited to this cohort of patients.
Each year NELA also requires NHS England’s DARS to provide the previous three years’ worth of HES data for the new cohort which is submitted annually. No historic data is released for cohorts submitted in previous audit years; only those who have undergone an emergency laparotomy procedure within the most recent NELA year. There are therefore no duplications of data. The retained data and additional data requested under this iteration of the Agreement will be used to enrich the data submitted by hospitals for the purposes of the audit.
The data required is pseudonymised data. No direct patient identifiers are needed for analysis, however the information needs to be on an individual level in order to link NHS England’s DARS data to the NELA data set for analysis in line with the audit’s aims.
NELA is a national audit that includes all eligible patients of emergency laparotomy in England and Wales. Therefore, the audit requires data for the whole of England.
Given the size and scope of the audit, the NELA team feel that requesting data from NHS England’s DARS is the most efficient way to obtain the data required.
NELA is only requesting data required for the purposes of the audit and only for eligible emergency bowel surgeries. The audit already collects an extensive dataset directly from hospitals—no data that can be obtained from the hospitals is required from NHS England’s DARS. As aforementioned, the NHS England’s DARS data supplements and enhances the data the audit dataset already holds.
NELA has received Section 251 NHS Act 2006 support (reference - CAG 5-07(d)/2013) from the Health Research Authority (HRA) Confidential Advisory Group (CAG) to cover access to identifiable data on patients aged 18 and over undergoing emergency laparotomy in England and Wales from December 2013 onwards and linkage of this data to HES, ONS mortality data and Intensive Care National Audit and Research Centre (ICNARC) data (ICNARC data facilitated under a separate Agreement between ICNARC and the RCoA, not an Agreement with NHS England’s DARS).
Support has also been received from HRA CAG to defer the application of the National Data Opt-Out (NDO) in relation to NELA. There are two points of rationale: (1) patient safety – if the NDO is implemented, clinicians may be unable to use the NELA webtool to obtain patient risk scores. Several clinical teams have flagged the risk to NELA data entry with the NELA study team due to the increased workload related to checking for the NDO prior to data entry in real-time, or fear of data breaches to diminished engagement with the audit; (2) introduction of bias – the case ascertainment to NELA is over 85%. Figures from NHS England’s DARS show that rates of registration with the National Data Opt-Out vary, exceeding 10% in one in twenty GP practices. The Care Quality Commission uses information from NELA to inform their surveillance approach and to plan and support inspections. Missing information may bias the results. The data quoted is derived from data available here: https://digital.nhs.uk/data-and-information/publications/statistical/national-data-opt-out/april-2022.
NELA applied for, and received, exemption from applying the national data-opt. Therefore, data from anyone on the opt-out register can continue to be entered and used as part of NELA. NELA will continue to remove any individual patient who get in touch with NELA or their care team indicating that they do not wish to have their data included in NELA, as per the CAG conditions of support. Therefore, local opt-outs will be applied.
JUSTIFICATION FOR DATA
- Demographics data and Civil Registration (deaths) data:
The above datasets help ensure that the audit has accurate information on mortality outcomes, including information on diagnoses associated with the death. This allows NELA to compute deaths within 30- and 90- days of surgery, a key metric for the audit.
- Hospital Episode Statistics (HES) Critical Care data:
This data allows for an investigation of the patterns of critical care across NHS Hospitals and for an examination of whether patients with similar conditions and risk of death are being treated in a consistent way that is compatible with guideline recommendations. In line with the NELA team’s desire to continue to look for ways to enhance the audit, participants and stakeholders fed back to the NELA team that information about the delivery of critical care to emergency laparotomy patients would help to inform the development of local Quality Improvement initiatives. To this end, the project uses Critical Care data to develop performance indicators to provide hospitals with this information.
- HES Admitted Patient Care data:
This data is required to provide information on the number of expected emergency laparotomy procedures in any given audit year (case ascertainment). This is critical information and allows NELA to compute case ascertainment rates for each participating hospital - a metric needed to determine the level of completeness of reporting for each hospital and to provide an insight into the representativeness of the audit population. Information from this dataset is also required to examine data by deprivation score, which can provide important information on equity of services in different regions. Other variables from this dataset are also needed to provide information on key measures like patient comorbidities and longer-term outcomes like readmission rates.
The data from HES Critical Care and Admitted Patient Care also helps the NELA team to improve risk-adjustment models by using extensive information on comorbid conditions held within HES (eg. to calculate the Charlson Comorbidity score - predicts 10-year survival in patients with multiple comorbidities).
DATA CONTROLLERS / DATA PROCESSORS
HQIP and NHS England are joint data controllers for the purposes of this Data Sharing Agreement. RCoA, RCS, Bluesource Information Limited and Harbor Solutions Limited are data processors.
Funders include NHS England and the Welsh government. While the audit is commissioned by HQIP, HQIP themselves are commissioned by NHS England to commission the Audit. HQIP and NHS England provide general oversight for the audit but are not involved in the day-to-day management and do not have access to NHS England’s DARS data.
The RCoA were commissioned by HQIP to deliver the audit. As commissioners, HQIP ensure that the RCoA deliver contracted elements of the audit on time and within budget, in addition to serving as data controllers. HQIP, NHS England, and the Welsh government receive copies of NELA-generated reports for review and approval. Where the reports contain NHS England’s DARS data, the data is aggregated with small numbers suppressed in line with the HES analysis guide. The audit’s contract with HQIP specifies how data should be protected and processed.
The RCoA also work with the Clinical Effectiveness Unit (CEU) at the RCS to support the delivery of the audit. RCS have a role in developing the audit methodology and analysis of the audit data. The NHS England’s DARS data is also stored and processed on servers located at the RCS CEU. Both the RCoA and RCS however have no role in determining the purposes and means of the processing of the NHS England’s DARS requested under this Agreement. That responsibility lies solely with NHS England and HQIP.
The RCoA have employed Bluesoure Information Limited to provide secure back-up storage of the data. In turn Bluesource have contracted Harbor Solutions Limited to provide these services. Per Part 1, Section 3(4)(a) of the Data Protection Act 2018, as the storage of data is considered to be a type of processing, Harbor Solutions Limited and Bluesource Information Limited are considered data processors. No patient identifiable data is stored on the back-up servers provided by Harbor Solutions Limited. The terms of the contract Bluesource Information Limited has with Harbor Solutions Limited mirror the terms agreed between Bluesource Information Limited and the RCoA.
NELA also seeks guidance from a clinical reference group made up of representatives from key stakeholder organisations. Neither these individuals nor their organisations have access to NELA data or NHS England’s DARS data; they also do not determine the purpose or means of the processing of personal data.
WIDER PROGRAMMES
NELA forms part of the National Clinical Audit and Patient Outcomes Programme (NCAPOP). HQIP, as commissioner of the NCAPOP, are responsible for project specification development, procurement and extension activities, contract management and authorising data sharing requests. NHS England are responsible for determining which projects/topics are included in the NCAPOP and, as a funder, participate in specification development, procurement and project extension activities and authorises, as chair of the specification development meetings, the publication of project outputs. These specifications set out the purpose of the project, the patient groups and clinical services to evaluate and the types of data to collect. NHS England are also a representative on the HQIP Data Access Request Group which authorises data sharing applications from third parties.
Other than the NCAPOP, NELA is not part of any wider projects. From time to time however, NELA collaborates with external researchers by allowing access to NELA data via an application process. Only data collected as part of the audit (not data from NHS England’s DARS) are shared.
PATIENT AND PUBLIC INVOLVEMENT (PPI)
The NELA study team collaborates with its patient and families involvement group (PAFIG) which serves to provide insight and accountability to the NELA project team. The PAFIG are a group of individuals with lived experience of an emergency laparotomy. The core responsibilities of the PAFIG are to: (1) provide the lay perspective on the NELA, representing the views of patients and their families with experience of emergency laparotomy surgery; (2) ensure that positive outcomes for the end user, the emergency laparotomy patient, remains a key focus of the work; (3) provide feedback on materials related to the NELA including providing comments from a lay perspective into final reports; (4) advise on any additional patient and public involvement that may strengthen the project.
An information leaflet, outlining in lay person terms the objectives of NELA, was published in October 2018. The information leaflet has since been reviewed and simplified by the Patient and Public Involvement Manager at the RCoA. This has been shared once more with the PAFIG for their thoughts. Upon finalization, this document will be posted to the NELA website and shared with the PAFIG and participating sites for wider distribution (the patient information leaflet can be found on the following webpage: https://www.nela.org.uk/Patient-Information#pt)
NELA convened a meeting with its patient and families involvement group (PAFIG) on 27th July 2022 to discuss the deferral of the national data opt-out. The opt-out legislation was reviewed in general and an overview of the NELA exemption application was provided as a basis for discussion.
One member noted that the information collected as part of NELA was really important in that it improves surgery; she thought it was strange that anyone would want to opt-out of such a programme. She also noted that the information about mortality risk was particularly important as this impacts all care received subsequently. One of the members asked if there was still an option for patients to withdraw after the exemption comes into place and the NELA team indicated that there was, through previously established withdrawal procedures. When specifically asked if members had any objections to the exemption being applied, no objections were received.
In the 27th of July meeting of the PAFIG, other modes of communication were discussed. A video was also suggested. The NELA team will look to produce a video and/or poster regarding the opt-out which can be posted to the website and distributed to local NELA leads within participating hospitals which can be further distributed to patients.
LEGAL BASIS FOR PROCESSING
HQIP and NHS England both rely on Article 6 (1) (e) of the General Data Protection Regulation as their lawful basis for processing personal data - "processing is necessary for the performance of a task carried out in the public interest or in the exercise of official authority vested in the controller". This is justified through commissioning arrangements which link back to NHS England and other national bodies with statutory responsibilities to improve quality of health care servicTo process special categories of personal data, HQIP rely on Article 9 (2) (i) - "processing is necessary for reasons of public interest in the area of public health, such as protecting against serious cross-border threats to health or ensuring high standards of quality and safety of health care and of medicinal products or medical devices, on the basis of Union or Member State law which provides for suitable and specific measures to safeguard the rights and freedoms of the data subject, in particular professional secrecy". This is justified as the data is required for audit purposes - for improvement and ensuring high standards and quality/safe care. The Secretary of State has a legal duty under section 2 of the Health and Social Care Act 2012 to continuously improve the quality of health care services. NHS England has a legal duty under the NHS Act 2006 section 13e to improve quality of healthcare services . The Secretary of State and NHS England exercise these duties through the NHS England contract with HQIP to commission NELA and the NHS standard contract with NHS providers of services to mandate participation within NCAPOP audits.
Recital 54 of GDPR explains that:
The processing of special categories of personal data may be necessary for reasons of public interest in the areas of public health without consent of the data subject. Such processing should be subject to suitable and specific measures so as to protect the rights and freedoms of natural persons. In that context, ‘public health’ should be interpreted as defined in Regulation (EC) No 1338/2008 of the European Parliament and of the Council, namely all elements related to health, namely health status, including morbidity and disability, the determinants having an effect on that health status, health care needs, resources allocated to health care, the provision of, and universal access to, health care as well as health care expenditure and financing, and the causes of mortality. Such processing of data concerning health for reasons of public interest should not result in personal data being processed for other purposes by third parties such as employers or insurance and banking companies.
To process special categories of personal data, NHS England rely on Article 9(2)(h) - "Processing is necessary for the purposes of preventive or occupational medicine, for the assessment of the working capacity of the employee, medical diagnosis, the provision of health or social care or treatment or the management of health or social care systems and services on the basis of Union or Member State law or pursuant to contract with a health professional and subject to the conditions and safeguards referred to in paragraph 3". This is justified as NHS England are responsible for the provision of health and social care, and the management of systems and compliance. Members of the NELA project team employed by the NHS will be subject to standard NHS confidentiality agreements.
Processing activities
The RCoA are the principal data processors for NELA and manage the extraction of the records from the NELA IT system.
The RCoA send a file of patient identifiers, including NHS number, date of birth, gender, postcode, and NELA ID to NHS England’s DARS.
RCoA will send the file of patient identifiers, NHS Number, date of Birth and Postcode, and the NELA ID to NHS Digital for linkage to HES and Mortality Data fields. Pseudonymised files from NHS Digital will contain the HES and Mortality Data fields with the NELA ID variable added (no patient identifiers are to be returned to the NELA team). The pseudonymised files of HES / Mortality Data will be received by the RCS and RCoA and held on the secure data servers within each organisation.
NHS England’s DARSlink the patient identifiers supplied by the RCoA to the HES Critical Care, Admitted Patient Care, Civil Registration (deaths) and Demographics data and return to the RCoA a pseudonymised file with the NELA ID attached to each individual record.
In all cases, the data received from NHS Digital will not be linked back to the identifiable NELA database held at RCoA. An extract of pseudonymised data is taken from the NELA database and this data will be linked to the HES-Mortality data via the NELA ID. Date of Death submitted from the NELA database is provided as this includes an important data quality step. There are potential missed linkages if RCS and RCoA do not have this information when processing the data. This also helps to validate the data entered into NELA. No data provided by NHS Digital is sent to RCoA to correct fields in the NELA database.
Transferral process - data received from NHS England’s DARS is downloaded by the RCoA to secure, access-restricted servers. All data received from NHS England’s DARS is also shared with the RCS Clinical Effectiveness Unit (CEU) via a secure Sharepoint site. The file is made available on Sharepoint for a 3-hour window so that the CEU statistician can access and securely store the data within the RCS CEU. The NELA project team then merge the NELA dataset and HES, Civil Registration (deaths) and Demographics data from NHS England’s DARS using the NELA ID. It is this pseudonymised file which is used for the analysis.
A copy of the pseudonymised data fields along with the unique NELA ID will be analysed by project team members from both RCS and RCoA at the RCS Clinical Effectiveness Unit and RCoA. The full Date of Death is required to be able to calculate survival at multiple time points (30 day, 90 day, etc.). There will be no capacity for RCS / RCoA analysts to use the Date of Death to identify any individual patients.
In line with the current contract with HQIP and the introduction of the Best Practice Tariff for Emergency Laparotomies, it is important for hospitals to be able to understand their case ascertainment and identify which patients have not had their data uploaded to NELA. To this end, RCoA will return to each Trust the data they originally submitted to NHS England’s DARS as Secondary Use Services (SUS) data (transformed by NHS England’s DARS into HES) so that the Trusts can identify patients that have not been analysed as part of the audit. This requires hospital access to their own unsuppressed record-level data. The following data items will be returned: patient year of birth, patient gender, date of admission, date of operation, primary operative procedure code, diagnosis code. Only data that has emanated from the Trust will be returned to the Trust.
The majority of the analysis involving the pseudonymised linked patient dataset will be conducted by the RCS statisticians who form part of the NELA Project Team. The remainder would consist of statisticians from RCoA who would be involved in some of the analysis of the patient-level dataset and will be located at the RCoA and RCS Clinical Effectiveness Unit to undertake this work. In either case, all individuals with access to the data are substantively employed or have contracted agreements by either RCoA, or RCS and are required to sign a Confidentiality Agreement before access is granted.
NELA collects data on a continuous basis each year. Audit years correspond to 1 December until 30 November the following year. Participating sites are given until the end of January to submit their data for the preceding audit year. In early February, the NELA team export data from the NELA data entry portal (this only comprises data entered by participating sites, not NHS England’s DARS data). The data is securely saved to RCoA servers. In February/March, after the NELA dataset has been appropriately cleaned, a file of identifiers is sent to NHS England’s DARS for linkage to HES, Mortality and Demographic data via Secure Electronic File Transfer (SEFT).
Analysts from RCS / RCoA who work on the pseudonymised data set do not have access to the identifiable data set held within the NELA IT system and managed by the RCoA, nor the list of patient identifiers sent to NHS digital for linkage purposes. The list of patient identifiers sent to NHS digital is only accessible by a senior member of the RCoA. RCoA or RCS will not be linking HES/Mortality Data with any other dataset (apart from an extract of NELA). Linkage with any other datasets would be subject to a future application and would be supported by an appropriate legal basis.
In all cases, the data received from NHS England’s DARS will not be linked back to the identifiable NELA database held at RCoA. An extract of pseudonymised data is taken from the NELA database and this data will be linked to the HES, Mortality and Demographics data via the NELA ID. Date of death submitted from the NELA database is provided as this includes an important data quality step. There are potential missed linkages if RCS and RCoA do not have this information when processing the data. This also helps to validate the data entered into NELA. No data provided by NHS England’s DARS is sent to RCoA to correct fields in the NELA database.
In line with current contract with HQIP and the introduction of Best Practice Tariff for Emergency Laparotomies, it is important for hospitals to be able to understand their case ascertainment and identify which patients have not had their data uploaded to NELA. For this purpose, RCoA will return to trusts their own HES data – originally submitted by Trusts as SUS, then transformed by NHS Digital into HES – in order to identify patients that have not been submitted to the audit. This requires hospital access to their own unsuppressed record-level data. The following data items will be returned; Patient year of birth, Patient sex, Date of admission, Date of operation, OPERTN_01, DIAG_01. Only data that has emanated from the Trust will be returned to the Trust.
A copy of the pseudonymised data fields along with the unique NELA ID will be analysed by project team members from both RCS and RCoA at the RCS CEU and RCoA on an, at the minimum, annual basis to produce NELA’s annual state of the nation reports. HES data will primarily be used to determine case ascertainment for each participating site and the Mortality data will be used to determine mortality after surgery. The full date of death is required to be able to calculate survival at multiple time points (30 day, 90 day, etc.). There will be no capacity for RCS / RCoA analysts to use the date of death data supplied to identify any individual patients. Mortality and Demographic data are also used to produce an annual list of potential outlier hospitals whose adjusted 30-day mortality is above that expected.
NHS Digital reminds all organisations party to this agreement of the need to comply with the Data Sharing Framework Contract requirements, including those regarding the use (and purposes of that use) by “Personnel” (as defined within the Data Sharing Framework Contract i.e.: employees, agents and contractors of the Data Recipient who may have access to that data).
RCoA and RCS will not be linking HES, mortality or demographic data with any other datasets (apart from an extract of NELA data). Linkage with any other datasets would be subject to a future application and would be supported by an appropriate legal basis.
There is no requirement to re-identify individuals and the NELA team will make no attempt to re-identify individuals contained in the NHS England’s DARS data.
The majority of the work conducted on NHS England’s DARS data will be done by the RCS or RCoA statisticians/data analysts who form part of the NELA project team. All individuals with access to the data are substantively employed. All team members are expected to complete training in data protection and confidentiality before access to data is granted. All requests for access must be approved by the RCoA Head of Research. Within the secure server, project-specific folders are created for each individual requiring access thereby limiting the access to only that data which is needed for each project. Similar procedures are in place at the RCS.
Harbor Solutions Limited provide back-up data storage for the RCoA, and process data only for the purpose of secure retention. Harbor Solutions Limited have no means to access NHS England’s DARS data. Any access to the data held under this agreement would be considered a breach of the agreement. The back-up servers that are owned and managed by Harbor Solutions Limited are held at locations owned by IOMart and Cyxtera respectively. IOMart and Cyxtera do not have access to the servers that hold the data disseminated under this Agreement.
Expected output
The linked dataset will be a product of this process and will enhance the quality of the comparative data for the audit in subsequent years.
NELA is commissioned to produce a ‘state of the nation’ annual report each year. Reports utilising patient level information have been published in June 2015, July 2016, October 2017, November 2018, December 2019, November 2020 and November 2021 - these are available to view on the NELA website (https://www.nela.org.uk/). Subsequent reports are scheduled to be published yearly, while ad hoc interim reports may also be published. These reports provide updates on standards of care for emergency bowel surgery patients. The reports provide aggregated information on key metrics like case ascertainment, mortality, timeliness to operating theatre, consultant delivered care, and risk assessment among others. The reports also produce this information at hospital-level and red, amber, green (RAG) rate the success of each hospital in meeting each metric.
The NELA is commissioned to produce a "State of the Nation" annual report each year. Reports utilising patient level information have been published in June 2015, July 2016, October 2017, November 2018, December 2019, and November 2020; these are available to view on the NELA website. Subsequent reports are scheduled to be published yearly, while ad hoc interim reports may also be published.
In order to more widely disseminate the findings of the audit, additional scientific publications hope to be produced. These outputs are anticipated to be in the form of peer-reviewed articles and conference presentations e.g. the British Medical Journal (BMJ), British Journal of Anaesthesia (BJA), Association of Surgeons of Great Britain and Ireland (ASGBI) journal, and Association of Anaesthetists of Great Britain and Ireland (AAGBI) journal. Publications related to the audit methods (e.g. a risk-adjustment model) rather than information of clinical practice and outcomes are to be published on an ad hoc basis.
In order to more widely disseminate the findings of the audit, additional scientific publications will be produced. These outputs will be in the form of peer-review articles and conference presentations.
Publications are also anticipated to be / have been distributed via social media (@NELANews on Twitter), newsletters, and website updates (https://www.nela.org.uk/reports).
The results of the audit will also be disseminated at professional medical conferences and in peer-reviewed journals e.g. BMJ (British Medical Journal), BJA (British Journal of Anaesthesia), ASGBI (Association of Surgeons of Great Britain and Ireland) journal, and AAGBI (The Association of Anaesthetists of Great Britain and Ireland) at the time of the launch of the report or shortly after. Publications related to the Audit methods (e.g., a risk-adjustment model) rather than information of clinical practice and outcomes will be published on an ad hoc basis.
So far, 7 peer-reviewed publications that used combined NELA data and data from NHS England’s DARS have been produced by the NELA project team.
In response to participant feedback a Quality Improvement Report Dashboard has been created on the NELA Online Web Tool to assist sites with audit data collection and to promote local Quality Improvement work (Local hospital data can only be viewed by registered local hospital participants). The Quality Improvement Report Dashboard will only provide local units with aggregated information to compare their performance against a national average. The figures available to each unit will be based on their own local data (supplied by the units) and the Dashboard may therefore present small numbers on some occasions. Each individual user has their own login to the webtool which gives them access to only their own hospital local data. To access the webtool they require a username and password. No data supplied from NHS Digital is held or accessed here.
All outputs and publications contain / will contain only aggregated data with small numbers suppressed in line with the HES Analysis Guide.
The following Reports and Publications have been created:
For each annual report, the NELA team develop a communication plan that is agreed with NELA’s commissioner, HQIP. Once approved, the report is a publicly available document. Methods of communication for the annual report include social media (Twitter posts), website updates to the both the RCoA and NELA websites, newsletter distribution to various audiences, including the RCoA members and NELA participating hospitals, webinars, and infographics designed for a lay audience. The report is also shared with NELA’s clinical reference group for distribution through their networks, as well as NELA’s funders—NHS England and the Welsh government. Ad hoc interim reports are communicated and disseminated in similar ways.
- 6 National Patient Audit Reports published in 2015, 2016, 2017, 2018, 2019, and 2020
- 2 Organisational Audit reports published in 2014 and 2017
- Quarterly hospital reports provided to participants since the start of 2017 and ongoing
- Quarterly Reports at AHSN level provided since Year 4 Quarter 3
In addition,
- Data is being used by CQC on their Dashboard (no record level data - all aggregated with small numbers suppressed)
- Data being used on MyNHS website (no record level data - all aggregated with small numbers suppressed)
- Data being used as part of the NHS England Best Practice Tariff.
All outputs and publications contain only aggregated data with small numbers suppressed in line with the HES Analysis Guide.
There will be no requirement nor attempt to re-identify individuals from the data.
The data will not be made available to any third parties except in the form of aggregated outputs with small numbers suppressed in line with the HES Analysis Guide.
RCoA/RCS have requested permission to release a small number of items from HES data back to participating hospitals sites. This would be provided only to hospitals via the online webtool so they could see which patients have been coded as Emergency Laparotomies in HES. RCoA/RCS would not be releasing information that the hospital does not already have, as they submitted it to HES in the first place.
RCoA/RCS have requested permission to release a small number of items – unsuppressed, at record-level – from HES data back to participating hospitals sites, to enable clinicians to explore and understand low-volume activity in their Trusts, to understand case ascertainment and - specifically - identify which patients have not had their data uploaded to NELA. This would be provided only to hospitals via the online webtool so they could see which patients have been coded as Emergency Laparotomies in HES. RCoA/RCS would not be releasing information that the hospital does not already have, as they submitted it – originally as SUS, then transformed by NHS Digital into HES – in the first place.
Expected measurable benefits
The NELA audit is highly relevant to current clinical practice and publications will allow widespread dissemination of the findings amongst health professionals. Linkage to the HES/Mortality data allows the Audit to report more extensively on patterns of care beyond the initial hospital admission and longer-term outcomes, such as 90-day mortality. The Audit is able to examine issues such as readmission rates and the most common reasons for these post-discharge complications, e.g.: respiratory complications and anastomotic leaks.
The audit aims to produce useful indicators that describe the standard of care in a variety of clinical areas. These indicators are anticipated to allow for the identification of NHS providers that are performing well and those requiring improvement to the quality of care received by patients.
The audit will produce useful indicators that describe the standard of care in a variety of clinical areas. The indicators will identify NHS providers that are performing well and those requiring improvement to the quality of care received by patients.
Ongoing improvement in the processes of care and clinical outcomes has the potential to lead to a reduction in the postoperative mortality rates and thus an overall improvement in patient outcomes. Outcomes are measured by re-auditing individual sites and therefore regular data linkage is required.
Ongoing improvement in the processes of care and clinical outcomes should lead to a reduction in the postoperative mortality rates and thus an overall improvement in patient outcomes. Outcomes will be measured by re-auditing individual sites and therefore regular data linkage would be required. Since the start of the audit in 2013, 30 day mortality has fallen from 11.8% to 9.3%.
Trusts hope to use the process indicators and outcomes reported in the annual reports to assess their care against national standards and benchmark against other NHS trusts. This may enable providers to identify areas requiring improvement, which in turn may provide a benefit to patient care.
Trusts will use the process indicators and outcomes reported in the annual reports to assess their care against national standards and benchmark against other NHS trusts. This will enable providers to identify areas requiring improvement and take action which in turn will provide a benefit to patient care.
By providing hospital sites with information on which patients have been coded as having had an emergency laparotomy from the HES data received, hospital sites can investigate and improve both their case ascertainment rate and quality of care.
The audit outcomes/reporting will identify whether NHS trusts are meeting national guidance such as NICE recommendations and will identify variations in the provision of care. The benefits of this outcome include improving the quality of patient care and reduction in mortality.
Annual reports provide benchmarked data for each participating hospital in England and Wales. This provides comparative information that can be used by local sites to see where improvements in care are needed. It is also anticipated that the reports produced as a result of the audit will contribute to clinical guidance and national policy. The reports produced are sent to a variety of organisations (including NHS England, NICE, CQC) and they can use this information to update guidance and influence policy.
Any Trust with elevated mortality above expected rates will be notified which will allow for investigation into the cause; this can be attributable to either data quality issues or clinical practice. This notification will enable the trust to address the cause and either review the data submitted to the Audit or their clinical practice. Any resultant improvements in clinical practice will directly impact on improvements in patient care.
It is expected that participating hospitals will implement quality improvement measures in any areas of care that are lagging below standards and below national averages.
The NHS trust profiles are publicly available, providing transparency and enabling patient choice. These can be found via the NELA website and:
Benefits to patient care are measured by compliance with set clinical standards that NELA audits against. Compliance is red, amber, green (RAG) rated for each metric on a hospital-level. Trends in key reporting metrics will be reviewed over time to see if compliance increases.
- Data is being used by CQC on their Dashboard (no record level data - all aggregated with small numbers suppressed)
- Data being used on MyNHS website (which links to the NELA quarterly reports)
- Data being used for Best Practice Tariff.
Publishing in peer-reviewed journals will allow greater discussion of the strengths and weaknesses of the results and will provide the benefit of peer-review of the work from third parties.
It is anticipated that the reports produced as a result of the audit will contribute to clinical guidance and national policy. The reports produced are sent to a variety of organisations (including NHS England, NICE, CQC) and they can use this information to update guidance and influence policy.
By providing hospital sites with which patients have been coded as Emergency Laparotomies in HES, it will allow hospital sites to investigate and improve both their case ascertainment rate and quality of care.
Benefits reported
Benefits derived from the research so far:
The NELA audit is highly relevant to current clinical practice and publications have allowed for widespread dissemination of the findings amongst healthcare professionals. Linkage to the HES/Mortality data has allowed the Audit to report more extensively on patterns of care beyond the initial hospital admission and longer-term outcomes, such as 90-day mortality. The Audit is able to examine issues such as readmission rates and the most common reasons for these post-discharge complications - e.g. respiratory complications and anastomotic leaks. Data provided by the audit has an impact on provision of care for patients undergoing emergency bowel surgery and as noted below there have been tangible improvements in patient care since the audit's inception. Based on the NELA key metrics, the audit can see that patients now benefit from consultant-delivered care more than in earlier years of the audit, receive computerised tomography (CT) scans before surgery more often, have a pre-operative documentation of risk more often, and a higher percentage of high-risk patients are admitted directly to critical care after surgery than previously.
Headlines from reports of the last 6 years:
The NELA team have produced a quality improvement (QI) plan, approved by NELA’s commissioner, HQIP, which includes tools that the NELA team can offer to participating hospitals to improve patient care based on data produced by the audit. Ultimately, it is up to the participating hospitals to implement QI initiatives locally.
> national 30-day mortality rate falling from 11.8 per cent to 9.3 per cent over six years
The NELA team have seen promising trends on a national level in most key metrics since the start of the audit. In the most recent report, five metrics achieved compliance on a national level, while progress was also seen in relation to most other metrics. Different hospitals have different levels of compliance with each metric. The time it takes to achieve compliance across all metrics will vary by trust but the NELA team are encouraged by the progress seen since inception.
> Average length of stay has fallen to 15.4 days from 19.2 days in year one.
NHS England’s DARS data is being used by the Care Quality Commission (CQC) on their Dashboard (hospital-level data - includes data derived from NHS England’s DARS data, including case ascertainment and 30-day mortality, with small numbers suppressed), on the MyNHS website (no record level data - all aggregated with small numbers suppressed) and as part of the NHS England Best Practice Tariff.
> Making recommendations in the reports for local participating sites to follow. Includes recommendation for NELA Local Leads, Clinical Directors, Commissioners, Medical Directors, Multidisciplinary Teams, Royal Colleges and other professional stakeholders.
In terms of exploitation of results, there may be instances where data gathered as part of NELA is used for further research and the creation of new tools. An example of such development is the creation of the NELA risk prediction algorithm, which was developed to facilitate risk-adjusted comparisons of 30-day mortality rates between hospitals. It was brought about because other risk prediction tools were limited as they did not specifically focus on our patient population. Mortality data were used to develop the model so that 30-day postoperative mortality could be derived. The model is not intended to be used in isolation but as part of the overall clinical decision making process. All of the audit data is owned by HQIP as the audit commissioner, but the audit acknowledges all those that contribute including NHS England’s DARS. The coefficients and calculations used are open to all and published on the NELA website so anyone can make use of it.
> Running regional NELA Quality Improvement workshops to assist hospital sites in using their local data to improve patient care
The audit has made recommendations in annual reports for local participating sites to follow. Includes recommendation for NELA Local Leads, Clinical Directors, Commissioners, Medical Directors, Multidisciplinary Teams, Royal Colleges and other professional stakeholders.
The audit has run regional NELA Quality Improvement workshops to assist hospital sites in using their local data to improve patient care
In addition, peer-reviewed publications have added to literature on emergency bowel surgery. For example, NELA data have been combined with death data to demonstrate that patients with anaemia are at a higher risk of mortality and morbidity following surgery. Data from NELA and NHS England’s DARS-held HES/Mortality datasets have also been published showing that older emergency bowel surgery patients (aged 65+) experience worse outcomes in terms of mortality, length of stay, and discharge to care-home accommodation than younger patients.
Statistics:
Nearly 30,000 patients undergo emergency bowel surgery each year in England and Wales. Since NELA’s inception:
- Length of hospital stay after emergency bowel surgery has decreased from 19.3 days in NELA’s first year to 15.1 days in the most recent report. In addition to getting patients home quicker this also represents a cost-savings of around £42.4 million to participating trusts.
- In NELA’s first year of reporting, only 44% of hospitals had case ascertainment of 85% or higher. In the most recent NELA report, this increased to 58% of hospitals.
- More than 90% of high-risk patients now have a consultant surgeon and consultant anaesthetist present in theatre during surgery. This is an improvement from 82.3% in 2016/17.
- 85% of patients now have an assessment of mortality risk documented preoperatively. This is an improvement from 74.5% in 2016/17.
Objective for processing
On 1 February 2023, NHS Digital merged with NHS England. NHS England DARS has assumed responsibility for all activities previously undertaken by NHS Digital. The merger was completed by a statute change. Any reference made to NHS Digital within this Data Sharing Agreement is in reference to the merged organisation known as NHS England and is referred to as NHS England DARS.
BACKGROUND AND PURPOSE
The National Emergency Laparotomy Audit (NELA) was commissioned in 2011 by the Healthcare Quality Improvement Partnership (HQIP) and is funded by NHS England and the Welsh government. NELA first began collecting data in 2013 and has continued to do so on a regular basis ever since. NELA’s aims are to collect and publish high-quality comparative information from all hospitals in England and Wales at which emergency laparotomies (an emergency laparotomy is a major operation where the surgeon has to cut open the abdomen) are performed, in order to drive quality improvement in the care of these patients. It was established in response to the comparatively high death rate after emergency laparotomy, and the substantial variation in this rate between hospitals.
Throughout the Agreement NELA, the NELA team, and the NELA project team are interchangeable terms used and refer to the core NELA team that manage the day-to-day operations and analysis. The NELA team comprises substantive employees of both the Royal College of Surgeons of England (RCS) and Royal College of Anaesthetists (RCoA) as well as members who hold a signed memorandum of understanding with RCoA. Only substantive employees of the RCoA or RCS or non-substantive employees who hold honorary contracts with the RCoA will access the NHS England’s DARS data disseminated.
The objectives of the Audit are:
1. To enable secondary care providers to improve the delivery of care to patients undergoing emergency laparotomy using information produced by the audit.
2. To provide comparative information on the organisation of care by providers of emergency laparotomy.
3. To provide comparative information on patient outcomes following surgery for emergency laparotomy.
4. To facilitate the development of effective change (quality improvement) initiatives and thereby spread examples of best practice to help local providers make the best possible use of audit results.
NELA audits care provided by participating hospitals against a set of key standards including:
• Case Ascertainment
• Computerised tomography (CT) scans reported by an in-house consultant radiologist before surgery
• Access to theatres within a time frame appropriate for the urgency of surgery
• Documented assessment, before surgery, of the risks of surgery
• Review before surgery by consultant surgeon, anaesthetist, and intensivist for high-risk patients
• Presence of consultant surgeon and anaesthetist in theatre for high-risk patients
• Admission to critical care after surgery for high-risk patients
• Assessment by a care of the older person specialist for those aged 65+ and frail or aged 80+
• 30-day mortality
DATA SUMMARY
NELA holds data from 2012/13 and requires Demographics and Civil Registration (deaths) data (on a quarterly basis) and Hospital Episode Statistics (HES) Admitted Patient Care and Critical Care data (on an annual basis) over the course of this Agreement.
NELA supplies a cohort to NHS England’s DARS on an annual basis. The cohort submitted to NHS England’s DARS is different each year - all patients over the age of 18 years who, in the most recent NELA-defined audit year, have had a general surgical emergency laparotomy in any NHS hospital in England including emergency gastrointestinal procedures on the stomach, large and small bowel, for conditions such as perforation, bleeding, abdominal abscess or obstruction, via open or laparoscopic approaches. It is expected that there will be around 25,000 - 30,000 such patients each year. To address the UK GDPR Principle of Data Minimisation the data requested has been limited to this cohort of patients.
Each year NELA also requires NHS England’s DARS to provide the previous three years’ worth of HES data for the new cohort which is submitted annually. No historic data is released for cohorts submitted in previous audit years; only those who have undergone an emergency laparotomy procedure within the most recent NELA year. There are therefore no duplications of data. The retained data and additional data requested under this iteration of the Agreement will be used to enrich the data submitted by hospitals for the purposes of the audit.
The data required is pseudonymised data. No direct patient identifiers are needed for analysis, however the information needs to be on an individual level in order to link NHS England’s DARS data to the NELA data set for analysis in line with the audit’s aims.
NELA is a national audit that includes all eligible patients of emergency laparotomy in England and Wales. Therefore, the audit requires data for the whole of England.
Given the size and scope of the audit, the NELA team feel that requesting data from NHS England’s DARS is the most efficient way to obtain the data required.
NELA is only requesting data required for the purposes of the audit and only for eligible emergency bowel surgeries. The audit already collects an extensive dataset directly from hospitals—no data that can be obtained from the hospitals is required from NHS England’s DARS. As aforementioned, the NHS England’s DARS data supplements and enhances the data the audit dataset already holds.
NELA has received Section 251 NHS Act 2006 support (reference - CAG 5-07(d)/2013) from the Health Research Authority (HRA) Confidential Advisory Group (CAG) to cover access to identifiable data on patients aged 18 and over undergoing emergency laparotomy in England and Wales from December 2013 onwards and linkage of this data to HES, ONS mortality data and Intensive Care National Audit and Research Centre (ICNARC) data (ICNARC data facilitated under a separate Agreement between ICNARC and the RCoA, not an Agreement with NHS England’s DARS).
Support has also been received from HRA CAG to defer the application of the National Data Opt-Out (NDO) in relation to NELA. There are two points of rationale: (1) patient safety – if the NDO is implemented, clinicians may be unable to use the NELA webtool to obtain patient risk scores. Several clinical teams have flagged the risk to NELA data entry with the NELA study team due to the increased workload related to checking for the NDO prior to data entry in real-time, or fear of data breaches to diminished engagement with the audit; (2) introduction of bias – the case ascertainment to NELA is over 85%. Figures from NHS England’s DARS show that rates of registration with the National Data Opt-Out vary, exceeding 10% in one in twenty GP practices. The Care Quality Commission uses information from NELA to inform their surveillance approach and to plan and support inspections. Missing information may bias the results. The data quoted is derived from data available here: https://digital.nhs.uk/data-and-information/publications/statistical/national-data-opt-out/april-2022.
NELA applied for, and received, exemption from applying the national data-opt. Therefore, data from anyone on the opt-out register can continue to be entered and used as part of NELA. NELA will continue to remove any individual patient who get in touch with NELA or their care team indicating that they do not wish to have their data included in NELA, as per the CAG conditions of support. Therefore, local opt-outs will be applied.
JUSTIFICATION FOR DATA
- Demographics data and Civil Registration (deaths) data:
The above datasets help ensure that the audit has accurate information on mortality outcomes, including information on diagnoses associated with the death. This allows NELA to compute deaths within 30- and 90- days of surgery, a key metric for the audit.
- Hospital Episode Statistics (HES) Critical Care data:
This data allows for an investigation of the patterns of critical care across NHS Hospitals and for an examination of whether patients with similar conditions and risk of death are being treated in a consistent way that is compatible with guideline recommendations. In line with the NELA team’s desire to continue to look for ways to enhance the audit, participants and stakeholders fed back to the NELA team that information about the delivery of critical care to emergency laparotomy patients would help to inform the development of local Quality Improvement initiatives. To this end, the project uses Critical Care data to develop performance indicators to provide hospitals with this information.
- HES Admitted Patient Care data:
This data is required to provide information on the number of expected emergency laparotomy procedures in any given audit year (case ascertainment). This is critical information and allows NELA to compute case ascertainment rates for each participating hospital - a metric needed to determine the level of completeness of reporting for each hospital and to provide an insight into the representativeness of the audit population. Information from this dataset is also required to examine data by deprivation score, which can provide important information on equity of services in different regions. Other variables from this dataset are also needed to provide information on key measures like patient comorbidities and longer-term outcomes like readmission rates.
The data from HES Critical Care and Admitted Patient Care also helps the NELA team to improve risk-adjustment models by using extensive information on comorbid conditions held within HES (eg. to calculate the Charlson Comorbidity score - predicts 10-year survival in patients with multiple comorbidities).
DATA CONTROLLERS / DATA PROCESSORS
HQIP and NHS England are joint data controllers for the purposes of this Data Sharing Agreement. RCoA, RCS, Bluesource Information Limited and Harbor Solutions Limited are data processors.
Funders include NHS England and the Welsh government. While the audit is commissioned by HQIP, HQIP themselves are commissioned by NHS England to commission the Audit. HQIP and NHS England provide general oversight for the audit but are not involved in the day-to-day management and do not have access to NHS England’s DARS data.
The RCoA were commissioned by HQIP to deliver the audit. As commissioners, HQIP ensure that the RCoA deliver contracted elements of the audit on time and within budget, in addition to serving as data controllers. HQIP, NHS England, and the Welsh government receive copies of NELA-generated reports for review and approval. Where the reports contain NHS England’s DARS data, the data is aggregated with small numbers suppressed in line with the HES analysis guide. The audit’s contract with HQIP specifies how data should be protected and processed.
The RCoA also work with the Clinical Effectiveness Unit (CEU) at the RCS to support the delivery of the audit. RCS have a role in developing the audit methodology and analysis of the audit data. The NHS England’s DARS data is also stored and processed on servers located at the RCS CEU. Both the RCoA and RCS however have no role in determining the purposes and means of the processing of the NHS England’s DARS requested under this Agreement. That responsibility lies solely with NHS England and HQIP.
The RCoA have employed Bluesoure Information Limited to provide secure back-up storage of the data. In turn Bluesource have contracted Harbor Solutions Limited to provide these services. Per Part 1, Section 3(4)(a) of the Data Protection Act 2018, as the storage of data is considered to be a type of processing, Harbor Solutions Limited and Bluesource Information Limited are considered data processors. No patient identifiable data is stored on the back-up servers provided by Harbor Solutions Limited. The terms of the contract Bluesource Information Limited has with Harbor Solutions Limited mirror the terms agreed between Bluesource Information Limited and the RCoA.
NELA also seeks guidance from a clinical reference group made up of representatives from key stakeholder organisations. Neither these individuals nor their organisations have access to NELA data or NHS England’s DARS data; they also do not determine the purpose or means of the processing of personal data.
WIDER PROGRAMMES
NELA forms part of the National Clinical Audit and Patient Outcomes Programme (NCAPOP). HQIP, as commissioner of the NCAPOP, are responsible for project specification development, procurement and extension activities, contract management and authorising data sharing requests. NHS England are responsible for determining which projects/topics are included in the NCAPOP and, as a funder, participate in specification development, procurement and project extension activities and authorises, as chair of the specification development meetings, the publication of project outputs. These specifications set out the purpose of the project, the patient groups and clinical services to evaluate and the types of data to collect. NHS England are also a representative on the HQIP Data Access Request Group which authorises data sharing applications from third parties.
Other than the NCAPOP, NELA is not part of any wider projects. From time to time however, NELA collaborates with external researchers by allowing access to NELA data via an application process. Only data collected as part of the audit (not data from NHS England’s DARS) are shared.
PATIENT AND PUBLIC INVOLVEMENT (PPI)
The NELA study team collaborates with its patient and families involvement group (PAFIG) which serves to provide insight and accountability to the NELA project team. The PAFIG are a group of individuals with lived experience of an emergency laparotomy. The core responsibilities of the PAFIG are to: (1) provide the lay perspective on the NELA, representing the views of patients and their families with experience of emergency laparotomy surgery; (2) ensure that positive outcomes for the end user, the emergency laparotomy patient, remains a key focus of the work; (3) provide feedback on materials related to the NELA including providing comments from a lay perspective into final reports; (4) advise on any additional patient and public involvement that may strengthen the project.
An information leaflet, outlining in lay person terms the objectives of NELA, was published in October 2018. The information leaflet has since been reviewed and simplified by the Patient and Public Involvement Manager at the RCoA. This has been shared once more with the PAFIG for their thoughts. Upon finalization, this document will be posted to the NELA website and shared with the PAFIG and participating sites for wider distribution (the patient information leaflet can be found on the following webpage: https://www.nela.org.uk/Patient-Information#pt)
NELA convened a meeting with its patient and families involvement group (PAFIG) on 27th July 2022 to discuss the deferral of the national data opt-out. The opt-out legislation was reviewed in general and an overview of the NELA exemption application was provided as a basis for discussion.
One member noted that the information collected as part of NELA was really important in that it improves surgery; she thought it was strange that anyone would want to opt-out of such a programme. She also noted that the information about mortality risk was particularly important as this impacts all care received subsequently. One of the members asked if there was still an option for patients to withdraw after the exemption comes into place and the NELA team indicated that there was, through previously established withdrawal procedures. When specifically asked if members had any objections to the exemption being applied, no objections were received.
In the 27th of July meeting of the PAFIG, other modes of communication were discussed. A video was also suggested. The NELA team will look to produce a video and/or poster regarding the opt-out which can be posted to the website and distributed to local NELA leads within participating hospitals which can be further distributed to patients.
LEGAL BASIS FOR PROCESSING
HQIP and NHS England both rely on Article 6 (1) (e) of the General Data Protection Regulation as their lawful basis for processing personal data - "processing is necessary for the performance of a task carried out in the public interest or in the exercise of official authority vested in the controller". This is justified through commissioning arrangements which link back to NHS England and other national bodies with statutory responsibilities to improve quality of health care servicTo process special categories of personal data, HQIP rely on Article 9 (2) (i) - "processing is necessary for reasons of public interest in the area of public health, such as protecting against serious cross-border threats to health or ensuring high standards of quality and safety of health care and of medicinal products or medical devices, on the basis of Union or Member State law which provides for suitable and specific measures to safeguard the rights and freedoms of the data subject, in particular professional secrecy". This is justified as the data is required for audit purposes - for improvement and ensuring high standards and quality/safe care. The Secretary of State has a legal duty under section 2 of the Health and Social Care Act 2012 to continuously improve the quality of health care services. NHS England has a legal duty under the NHS Act 2006 section 13e to improve quality of healthcare services . The Secretary of State and NHS England exercise these duties through the NHS England contract with HQIP to commission NELA and the NHS standard contract with NHS providers of services to mandate participation within NCAPOP audits.
Recital 54 of GDPR explains that:
The processing of special categories of personal data may be necessary for reasons of public interest in the areas of public health without consent of the data subject. Such processing should be subject to suitable and specific measures so as to protect the rights and freedoms of natural persons. In that context, ‘public health’ should be interpreted as defined in Regulation (EC) No 1338/2008 of the European Parliament and of the Council, namely all elements related to health, namely health status, including morbidity and disability, the determinants having an effect on that health status, health care needs, resources allocated to health care, the provision of, and universal access to, health care as well as health care expenditure and financing, and the causes of mortality. Such processing of data concerning health for reasons of public interest should not result in personal data being processed for other purposes by third parties such as employers or insurance and banking companies.
To process special categories of personal data, NHS England rely on Article 9(2)(h) - "Processing is necessary for the purposes of preventive or occupational medicine, for the assessment of the working capacity of the employee, medical diagnosis, the provision of health or social care or treatment or the management of health or social care systems and services on the basis of Union or Member State law or pursuant to contract with a health professional and subject to the conditions and safeguards referred to in paragraph 3". This is justified as NHS England are responsible for the provision of health and social care, and the management of systems and compliance. Members of the NELA project team employed by the NHS will be subject to standard NHS confidentiality agreements.
Expected output
NELA is commissioned to produce a ‘state of the nation’ annual report each year. Reports utilising patient level information have been published in June 2015, July 2016, October 2017, November 2018, December 2019, November 2020 and November 2021 - these are available to view on the NELA website (https://www.nela.org.uk/). Subsequent reports are scheduled to be published yearly, while ad hoc interim reports may also be published. These reports provide updates on standards of care for emergency bowel surgery patients. The reports provide aggregated information on key metrics like case ascertainment, mortality, timeliness to operating theatre, consultant delivered care, and risk assessment among others. The reports also produce this information at hospital-level and red, amber, green (RAG) rate the success of each hospital in meeting each metric.
In order to more widely disseminate the findings of the audit, additional scientific publications hope to be produced. These outputs are anticipated to be in the form of peer-reviewed articles and conference presentations e.g. the British Medical Journal (BMJ), British Journal of Anaesthesia (BJA), Association of Surgeons of Great Britain and Ireland (ASGBI) journal, and Association of Anaesthetists of Great Britain and Ireland (AAGBI) journal. Publications related to the audit methods (e.g. a risk-adjustment model) rather than information of clinical practice and outcomes are to be published on an ad hoc basis.
Publications are also anticipated to be / have been distributed via social media (@NELANews on Twitter), newsletters, and website updates (https://www.nela.org.uk/reports).
So far, 7 peer-reviewed publications that used combined NELA data and data from NHS England’s DARS have been produced by the NELA project team.
All outputs and publications contain / will contain only aggregated data with small numbers suppressed in line with the HES Analysis Guide.
For each annual report, the NELA team develop a communication plan that is agreed with NELA’s commissioner, HQIP. Once approved, the report is a publicly available document. Methods of communication for the annual report include social media (Twitter posts), website updates to the both the RCoA and NELA websites, newsletter distribution to various audiences, including the RCoA members and NELA participating hospitals, webinars, and infographics designed for a lay audience. The report is also shared with NELA’s clinical reference group for distribution through their networks, as well as NELA’s funders—NHS England and the Welsh government. Ad hoc interim reports are communicated and disseminated in similar ways.
Benefits reported
The NELA audit is highly relevant to current clinical practice and publications have allowed for widespread dissemination of the findings amongst healthcare professionals. Linkage to the HES/Mortality data has allowed the Audit to report more extensively on patterns of care beyond the initial hospital admission and longer-term outcomes, such as 90-day mortality. The Audit is able to examine issues such as readmission rates and the most common reasons for these post-discharge complications - e.g. respiratory complications and anastomotic leaks. Data provided by the audit has an impact on provision of care for patients undergoing emergency bowel surgery and as noted below there have been tangible improvements in patient care since the audit's inception. Based on the NELA key metrics, the audit can see that patients now benefit from consultant-delivered care more than in earlier years of the audit, receive computerised tomography (CT) scans before surgery more often, have a pre-operative documentation of risk more often, and a higher percentage of high-risk patients are admitted directly to critical care after surgery than previously.
The NELA team have produced a quality improvement (QI) plan, approved by NELA’s commissioner, HQIP, which includes tools that the NELA team can offer to participating hospitals to improve patient care based on data produced by the audit. Ultimately, it is up to the participating hospitals to implement QI initiatives locally.
The NELA team have seen promising trends on a national level in most key metrics since the start of the audit. In the most recent report, five metrics achieved compliance on a national level, while progress was also seen in relation to most other metrics. Different hospitals have different levels of compliance with each metric. The time it takes to achieve compliance across all metrics will vary by trust but the NELA team are encouraged by the progress seen since inception.
NHS England’s DARS data is being used by the Care Quality Commission (CQC) on their Dashboard (hospital-level data - includes data derived from NHS England’s DARS data, including case ascertainment and 30-day mortality, with small numbers suppressed), on the MyNHS website (no record level data - all aggregated with small numbers suppressed) and as part of the NHS England Best Practice Tariff.
In terms of exploitation of results, there may be instances where data gathered as part of NELA is used for further research and the creation of new tools. An example of such development is the creation of the NELA risk prediction algorithm, which was developed to facilitate risk-adjusted comparisons of 30-day mortality rates between hospitals. It was brought about because other risk prediction tools were limited as they did not specifically focus on our patient population. Mortality data were used to develop the model so that 30-day postoperative mortality could be derived. The model is not intended to be used in isolation but as part of the overall clinical decision making process. All of the audit data is owned by HQIP as the audit commissioner, but the audit acknowledges all those that contribute including NHS England’s DARS. The coefficients and calculations used are open to all and published on the NELA website so anyone can make use of it.
The audit has made recommendations in annual reports for local participating sites to follow. Includes recommendation for NELA Local Leads, Clinical Directors, Commissioners, Medical Directors, Multidisciplinary Teams, Royal Colleges and other professional stakeholders.
The audit has run regional NELA Quality Improvement workshops to assist hospital sites in using their local data to improve patient care
In addition, peer-reviewed publications have added to literature on emergency bowel surgery. For example, NELA data have been combined with death data to demonstrate that patients with anaemia are at a higher risk of mortality and morbidity following surgery. Data from NELA and NHS England’s DARS-held HES/Mortality datasets have also been published showing that older emergency bowel surgery patients (aged 65+) experience worse outcomes in terms of mortality, length of stay, and discharge to care-home accommodation than younger patients.
Statistics:
Nearly 30,000 patients undergo emergency bowel surgery each year in England and Wales. Since NELA’s inception:
- Length of hospital stay after emergency bowel surgery has decreased from 19.3 days in NELA’s first year to 15.1 days in the most recent report. In addition to getting patients home quicker this also represents a cost-savings of around £42.4 million to participating trusts.
- In NELA’s first year of reporting, only 44% of hospitals had case ascertainment of 85% or higher. In the most recent NELA report, this increased to 58% of hospitals.
- More than 90% of high-risk patients now have a consultant surgeon and consultant anaesthetist present in theatre during surgery. This is an improvement from 82.3% in 2016/17.
- 85% of patients now have an assessment of mortality risk documented preoperatively. This is an improvement from 74.5% in 2016/17.
DARS-NIC-355855-R4G6G-v8.4 1 January 2022 to 31 March 2022
- Title
- MR1386 - National Emergency Laparotomy Audit
- Commercial
- No
- Sublicensing
- No
- Datasets
- 8
- Files released
- 0
Datasets: Civil Registrations of Death; Demographics; HES-ID to MPS-ID HES Admitted Patient Care; Hospital Episode Statistics Admitted Patient Care (HES APC); Hospital Episode Statistics Critical Care (HES Critical Care); MRIS - Cause of Death Report; MRIS - Cohort Event Notification Report; MRIS - Flagging Current Status Report
What changed from DARS-NIC-355855-R4G6G-v7.2
Text removed is struck through; text added is underlined. Unchanged paragraphs are summarised rather than repeated.
| Field | Was | Became |
|---|---|---|
| Start date | 2022-01-01 | |
| End date | 2022-03-31 | |
| Civil Registrations of Death: legal basis | Health and Social Care Act 2012 – s261(7); National Health Service Act 2006 - s251 - 'Control of patient information'. | |
| Demographics: legal basis | Health and Social Care Act 2012 – s261(7); National Health Service Act 2006 - s251 - 'Control of patient information'. | |
| HES-ID to MPS-ID HES Admitted Patient Care: legal basis | Health and Social Care Act 2012 – s261(7); National Health Service Act 2006 - s251 - 'Control of patient information'. | |
| Hospital Episode Statistics Admitted Patient Care (HES APC): legal basis | Health and Social Care Act 2012 – s261(7); National Health Service Act 2006 - s251 - 'Control of patient information'. | |
| Hospital Episode Statistics Critical Care (HES Critical Care): legal basis | Health and Social Care Act 2012 – s261(7); National Health Service Act 2006 - s251 - 'Control of patient information'. | |
| MRIS - Cause of Death Report: legal basis | Health and Social Care Act 2012 – s261(7); National Health Service Act 2006 - s251 - 'Control of patient information'. | |
| MRIS - Cohort Event Notification Report: legal basis | Health and Social Care Act 2012 – s261(7); National Health Service Act 2006 - s251 - 'Control of patient information'. | |
| MRIS - Flagging Current Status Report: legal basis | Health and Social Care Act 2012 – s261(7); National Health Service Act 2006 - s251 - 'Control of patient information'. |
Objective for processing
HQIP has put forward Article 6(1)(e) as their legal basis under GDPR. However, HQIP are currently seeking legal advice on whether this is the most appropriate legal basis. Further to receipt of that legal advice, the stated GDPR lawful basis may change, and the NHS Digital data release register would be updated to reflect this.
1. The objectives of the Audit are:
Emergency abdominal surgery (or emergency laparotomy) is associated with significant morbidity and mortality worldwide. The aim of The National Emergency Laparotomy Audit (NELA) is to enable the improvement of the quality of care of patients undergoing emergency laparotomy by providing high quality comparative information of the clinical practice and outcomes of all NHS providers of emergency laparotomy in England and Wales. NELA is a national clinical audit commissioned by the Healthcare Quality Improvement Partnership (HQIP) as part of the National Clinical and Patient Outcomes Programme (NCAPOP).
• To enable secondary care providers to improve the delivery of care to patients undergoing emergency laparotomy using information produced by the audit
HQIP have commissioned the Royal College of Anaesthetists (RCoA) to deliver the audit. RCoA are working in partnership with the Clinical Effectiveness Unit of the Royal College of Surgeons (RCS) and therefore make up the NELA project team. There are no other organisations involved. HQIP act as data controllers for the national clinical audit but do not have access to any data collected or analysed by the RCoA and RCS who are the data processors.
• To provide comparative information on the organisation of care by providers of Emergency Laparotomy.
The analysis by the NELA project team will only involve pseudonymised datasets that links information submitted by NHS hospitals and data supplied by NHS Digital. Date of death (mortality data) comes from the hospitals if it occurs during the hospital admission. For deaths outside hospital, NELA uses the NHS Digital mortality data which is linked along with the NELA audit data to NHS Digital data and then analysed by substantive employees of RCS and substantive or contracted employees of RCoA.
• To provide comparative information on patient outcomes following surgery for Emergency Laparotomy.
The RCoA and RCS wish to link the patient records submitted to NELA with the Hospital Episode Statistics (HES) records for those patients. The NELA records relate only to an individual admission, and by linking to inpatient HES data, the Audit will be able to provide more precise and relevant information to NHS hospitals by allowing the RCoA and RCS to describe longer term outcomes (e.g., readmission rates) and to improve RCoA’s and RCS’s risk-adjustment models by using the extensive information on comorbid conditions held within HES. (eg to calculate the Charlson Comorbidity score)
• To facilitate the development of effective change (quality improvement) initiatives and thereby spread examples of best practice and help local providers make the best possible use of audit results
a. HQIP has put forward article 6(1)(e) ‘…for the performance of a task carried out in the public interest or in the exercise of official authority…’ article 9(2)(i) ‘…processing is necessary for reasons of public interest in the area of public health, such as ......... ensuring high standards of quality and safety of health care and of medicinal products or medical devices.…’ as the legal basis most appropriate for clinical audit.
b. Emergency abdominal surgery (or emergency laparotomy) is associated with significant morbidity and mortality worldwide. The aim of the National Emergency Laparotomy Audit (NELA) is to enable the improvement of the quality of care of patients undergoing emergency laparotomy by providing high quality comparative information of the clinical practice and outcomes of all NHS providers of emergency laparotomy in England and Wales. NELA is a national clinical audit commissioned by the Healthcare Quality Improvement Partnership (HQIP) as part of the National Clinical and Patient Outcomes Programme (NCAPOP).
i. The audit has Section 251 approval to collect information on emergency laparotomy patients. Patients who do not want their data included can opt-out by emailing the NELA team or through the National Data Opt-Out portal.
2. The analysis by the NELA project team will only involve pseudonymised datasets that link information submitted by NHS hospitals and data supplied by NHS Digital. Date of death (mortality data) comes from the hospitals if it occurs during the hospital admission. For deaths outside hospital, NELA uses the NHS Digital mortality data which is linked along with the NELA audit data to NHS Digital data and then analysed by substantive employees of the Royal College of Surgeons (RCS) and substantive or contracted employees of the Royal College of Anaesthetists (RCoA).
The RCoA and RCS wish to link the patient records submitted to NELA with the Hospital Episode Statistics (HES) records for those patients. The NELA records relate only to an individual admission, and by linking to inpatient HES data, the Audit will be able to provide more precise and relevant information to NHS hospitals by allowing the RCoA and RCS to describe longer term outcomes (e.g., readmission rates) and to improve RCoA’s and RCS’s risk-adjustment models by using the extensive information on comorbid conditions held within HES (eg to calculate the Charlson Comorbidity score).
[1 paragraph unchanged]
All patients over the age of 18 years, having a general surgical emergency laparotomy in all NHS hospitals in England and Wales are eligible for the audit and the trusts/hospitals will submit their records.
3. HQIP have commissioned the RCoA to deliver the audit. RCoA are working in partnership with the Clinical Effectiveness Unit of the RCS and therefore make up the NELA project team. There are no other organisations involved. HQIP act as data controllers for the national clinical audit but do not have access to any data collected or analysed by the RCoA and RCS who are the data processors. NELA began in 2013 and the requested historic data provides important data when looking to improve mortality and length of stay.
The aim is to include all emergency gastrointestinal procedures on the stomach, large and small bowel, for conditions such as perforation, bleeding, abdominal abscess or obstruction, via open or laparoscopic approaches.
4. As noted above, the RCoA and the RCS collaborate on NELA; no other organisations are involved. NELA’s primary purpose is to provide quality data to be used for clinical audit purposes; inclusion of HES and ONS mortality data help ensure the accuracy of the information. From time to time, NELA collaborate with external researchers by allowing access to NELA data after an application process. Only data collected as part of the audit (and not data from NHS Digital) are provided.
Emergency laparotomies following elective surgical complications will also be included in the NELA.
5. All patients over the age of 18 years, having a general surgical emergency laparotomy in all NHS hospitals in England and Wales are eligible for the audit and trusts/hospitals will submit their records. The aim is to include all emergency gastrointestinal procedures on the stomach, large and small bowel, for conditions such as perforation, bleeding, abdominal abscess or obstruction, via open or laparoscopic approaches. Emergency laparotomies following elective surgical complications will also be included in the NELA. The NELA includes all NHS hospitals in England and Wales that carry out emergency laparotomy. This includes any hospitals with acute admission, emergency departments, or specialist centres which carry out emergency laparotomy as a complication of other types of surgery.
The Project is requesting a three year DSA as this covers the length of the current National Audit contract with HQIP (NHS England & Welsh Government).The NELA includes all NHS hospitals in England and Wales that carry out emergency laparotomy. This includes any hospitals with acute admission, emergency departments, or specialist centres which carry out emergency laparotomy as a complication of other types of surgery.
6. NELA are requesting the following datasets:
NELA began in 2013 and the requested historic data provides important data when looking to improve mortality and length of stay.
a. Demographic data: data on date of death so as to ensure the audit has accurate information on this key outcome
The objectives of the Audit are:
b. Civil registration: as mortality is a key outcome measure of the audit, it is important to have accurate information, including information on diagnoses associated with the death
1. To enable secondary care providers to improve the delivery of care to patients undergoing emergency laparotomy using information produced by the audit;
c. Critical care data: These specific data would allow investigation of the patterns of critical care across NHS Hospitals and examine whether patients with similar conditions and risk of death are being treated in a consistent way that is compatible with guideline recommendations. The NELA team continue to look for ways in which to enhance the audit. The NELA team has received feedback from participants and stakeholders that information about the delivery of critical care to Emergency Laparotomy patients would help to inform the development of local Quality Improvement initiatives, and the project would use the Critical Care data to develop performance indicators to provide hospitals with this information.
2. To provide comparative information on the organisation of care by providers of Emergency Laparotomy.
d. Admitted patient care data: this data is being requested to provide information on the number of expected emergency laparotomy procedures in any given audit year. This is critical information and allows NELA to compute case ascertainment rates for each participating hospital. Information from this dataset also allows us to examine data by deprivation score, which can provide important information on equity of services in different regions. Other variables from this dataset provide information on key measures like patient comorbidities and longer-term outcomes like readmission rates.
3. To provide comparative information on patient outcomes following surgery for Emergency Laparotomy.
All data requested is at record level in order to link cases within NELA to the NHS Digital datasets. Data requested is pseudonymised as no direct patient identifiers are needed for analysis. We are requesting data for all of England as NELA is a national audit. NELA do not believe there are less intrusive alternatives to collecting this data, but are committed to only requesting that data which is necessary for the purposes of the audit. Data are only being requested for those patients with emergency laparotomy and only for those variables that cannot be reliably or easily obtained through hospital medical records.
4. To facilitate the development of effective change (quality improvement) initiatives and thereby spread examples of best practice and help local providers make the best possible use of audit results
7. HQIP act as data controllers and commissioners for the audit as noted above. NELA seek guidance from a clinical reference group made up of representatives from key stakeholder organisations. Neither these individuals or their organisations have access to NELA data or NHS Digital data. Funders include NHS England and the Welsh government. They provide general oversight for the audit but are not involved in the day-to-day management and do not have access to data.
In summary, the purpose of this request is to support national clinical audit, quality improvement within hospitals, and research on methods to monitor surgical outcomes.
The request for the addition of the HES Critical Care Data is for similar reasons to those for why the RCoA/RCS are requesting other data sets. These specific data would allow investigation of the patterns of critical care across NHS Hospitals and examine whether patients with similar conditions and risk of death are being treated in a consistent way that is compatible with guideline recommendations. The NELA team continue to look for ways in which to enhance the audit. The NELA team has received feedback from participants and stakeholders that information about the delivery of critical care to Emergency Laparotomy patients would help to inform the development of local Quality Improvement initiatives, and the project would use the Critical Care data to develop performance indicators to provide hospitals with this information.
Processing activities
[1 paragraph unchanged]
RCoA will send the file of patient identifiers, NHS Number, date of Birth and Postcode, and the NELA ID to NHS Digital for
linkage to HES and Mortality Data fields. Pseudonymised files from NHS Digital will contain the HES and Mortality Data fields with the NELA ID variable added (no patient identifiers are to be returned to the NELA team). The pseudonymised files of HES / Mortality Data will be received by the RCS and RCoA and held on the secure data servers within each organisation.
linkage to HES and Mortality Data fields. Pseudonymised files from NHS Digital will contain the HES and Mortality Data fields with the NELA ID variable added (no patient identifiers are to be returned to the NELA team). The pseudonymised files of HES / Mortality Data will be received by the RCS and RCoA and held on the secure data servers within each organisation.
[2 paragraphs unchanged]
The
majority of the
analysis involving the pseudonymised linked patient dataset will be conducted by the RCS
& RCoA
statisticians who form part of the NELA Project Team.
Those Statisticians
The remainder would consist of statisticians from RCoA who would be
involved in
some of
the analysis of the patient-level dataset
and
will be located at the
RCoA and
RCS
and RCoA
Clinical Effectiveness Unit
to undertake this work. In either case, all individuals with access to the data are substantively employed
by either RCS or RCoA
or have contracted agreements
with RCoA
by either RCoA, or RCS
and are required to sign a
Memorandum of Understanding (MoU)
Confidentiality
Agreement before access
to NHS Digital data
is granted.
[1 paragraph unchanged]
The majority of the analysis involving the pseudonymised linked patient dataset will be conducted by the RCS statisticians who form part of the NELA Project Team. The remainder would consist of statisticians from RCoA who would be involved in some of the analysis of the patient-level dataset and will be located at the RCoA and RCS Clinical Effectiveness Unit to undertake this work. In either case, all individuals with access to the data are substantively employed or have contracted agreements by either RCoA, or RCS and are required to sign a Confidentiality Agreement before access is granted.
[2 paragraphs unchanged]
Expected output
[1 paragraph unchanged]
The NELA is commissioned to produce a "State of the Nation" annual report each year.
The first 4 reports
Reports
utilising patient level information
were
have been
published in June 2015, July 2016, October
2017 & 2018
2017, November 2018, December 2019,
and
November 2020; these
are available to view on the NELA website. Subsequent reports are scheduled to be published
yearly.
yearly, while ad hoc interim reports may also be published.
[1 paragraph unchanged]
The results of the audit will also be disseminated at professional medical
[24 words unchanged]
journal, and AAGBI (The Association of Anaesthetists of Great Britain and Ireland)
journal
at the time of the launch of the report or shortly after.
[14 words unchanged]
clinical practice and outcomes will be published on an ad hoc basis.
[1 paragraph unchanged]
The first phase of the Dashboard which has now been launched focuses on Case Ascertainment and Patient Demographics. The Patient Demographics section allows local participants to view some basic information on their hospital's population of patients undergoing emergency laparotomy, and how it compares to the audit-wide average. It focuses on characteristics such as patient age and operative urgency.
The Case Ascertainment aims at increasing case completeness and submission by providing a monthly list of cases entered/completed/not completed.
The next phase of the Dashboard will focus much more on Quality Improvement, feeding back key QI indicators and comparing hospital's local data with national audit-wide averages. Some of the measures reported back will include; Documentation of risk, Direct Admission to critical care etc.
The Royal College of Anaesthetists are currently in the process of developing the QI dashboard and hope to make further additions in the next few months.
[1 paragraph unchanged]
-
4
6
National Patient Audit Reports published in 2015, 2016, 2017,
2018
2018, 2019, and 2020
[6 paragraphs unchanged]
- Work has started on introducing a BPT for Emergency Laparotomy using the audit data. NHS England are looking to introduce this BPT in 2019. The BPT will be using audit data to ensure compliance.
- Data being used as part of the NHS England Best Practice Tariff.
[5 paragraphs unchanged]
Expected measurable benefits
[2 paragraphs unchanged]
Ongoing improvement in the processes of care and clinical outcomes should lead
[20 words unchanged]
by re-auditing individual sites and therefore regular data linkage would be required.
It is hoped that this improvement in care would be identified by the end of the currently proposed commissioned audit period (Dec 2020).
Since the start of the audit in 2013, 30 day mortality
rate
has fallen from 11.8% to
9.5%.
9.3%.
[1 paragraph unchanged]
The audit outcomes/reporting will identify whether NHS trusts are meeting national guidance
[6 words unchanged]
identify variations in the provision of care. The benefits of this outcome
include;
include
improving the quality of patient care and reduction in mortality.
Any Trust
showing as an alarm
with elevated mortality above expected rates
will be notified which will allow for investigation into the cause; this
[36 words unchanged]
improvements in clinical practice will directly impact on improvements in patient care.
[2 paragraphs unchanged]
- Data being used on MyNHS website
(no record level data - all aggregated with small numbers suppressed)
(which links to the NELA quarterly reports)
- Work has started on introducing a Best Practice Tariff (BPT) for Emergency Laparotomy using the audit data. NHS England are looking to introduce this BPT in 2019. The BPT will be using audit data to ensure compliance.
- Data being used for Best Practice Tariff.
[2 paragraphs unchanged]
By providing hospital sites with which patients have been coded as Emergency Laparotomies
(ELs)
in HES, it will allow hospital sites to investigate and improve both their case ascertainment rate and quality of care.
The case ascertainment issue is likely to become a significant issue with the introduction of the Emergency Laparotomy Best Practice Tariff (BPT). Those with low Case Ascertainment due to coding issues will find that they don't meet the BPT because they are coding too many cases as ELs.
Benefits reported
[1 paragraph unchanged]
Headlines from reports of the last
4
6
years:
> national 30-day mortality rate falling from 11.8 per cent to
9.5.
9.3
per cent over
four years, represents around 700 lives saved each year in comparison 2013-2014.
six years
> Average length of stay has fallen to
15.6
15.4
days from 19.2 days in year one.
[2 paragraphs unchanged]
Peer Reviewed Papers Published:
- C.M. Oliver, M.G. Bassett, T.E. Poulton, I.D. Anderson, D.M. Murray, M.P. Grocott, S.R. Moonesinghe for the National Emergency Laparotomy Audit collaborators. Organisational factors and mortality after an emergency laparotomy: multilevel analysis of 39 903 National Emergency Laparotomy Audit patients. BJA. 2018 Dec;121(6):1346-1356
- N. Eugene, C.M. Oliver, M.G. Bassett, T.E. Poulton, A. Kuryba, C. Johnston, I.D. Anderson, S.R. Moonesinghe, M.P. Grocott, D.M. Murray, D.A. Cromwell, K. Walker on behalf of the NELA collaboration§ Development and internal validation of a novel risk adjustment model for adult patients undergoing emergency laparotomy surgery: the National Emergency Laparotomy Audit risk model. BJA 2018 Oct;121(4):739-748
- O. Peacock, M. G. Bassett, A. Kuryba, K. Walker, E. Davies, I. Anderson et al. Thirty‐day mortality in patients undergoing laparotomy for small bowel obstruction. BJS March 2018; 105: 1006-1013.
Non-peer reviewed paper published:
- ‘NELA; Engaging with emergency laparotomy patients’ - RCoA Bulletin March 2018.
- Using data to improve care: NELA regional workshops - RCoA Bulletin July 2018
- Leeds Teaching Hospitals NHS Trust - NELA Nurse Leads - Blog for RCoA Website - July 2018
- NELA: more than just another audit - Sarah Hare Blog for RCoA Website - November 2018
Conferences/Presentations Attended:
There are multiple as the NELA Project Team attend many meetings throughout the year. The meetings listed below have taken place in the last 6 months (July - December 2018)
- National Clinical Audit Summit - London
- AAGBI Congress - London
- NELA London QI Workshop
- ICNARC Conference -London
- South East Thames Society of Anaesthetics - Maidstone
- NAP 6 Launch – London
- ELC Welsh Meeting - Cardiff
- ASGBI Congress - Liverpool
- Age Anaesthesia Conference - London
- RCoA Anaesthesia 2018 - London
- AAGBI Conference – Telford
- RCoA College Tutors – Leeds
- NENC AHSN Meeting – Newcastle
- Ebpom – London
- AAGBI Meeting – London
- NELA meets NASBO – Birmingham
- South West ELC Meeting - Bath
- Local/Regional Trainee FFICM Meeting – Bristol
Objective for processing
1. The objectives of the Audit are:
• To enable secondary care providers to improve the delivery of care to patients undergoing emergency laparotomy using information produced by the audit
• To provide comparative information on the organisation of care by providers of Emergency Laparotomy.
• To provide comparative information on patient outcomes following surgery for Emergency Laparotomy.
• To facilitate the development of effective change (quality improvement) initiatives and thereby spread examples of best practice and help local providers make the best possible use of audit results
a. HQIP has put forward article 6(1)(e) ‘…for the performance of a task carried out in the public interest or in the exercise of official authority…’ article 9(2)(i) ‘…processing is necessary for reasons of public interest in the area of public health, such as ......... ensuring high standards of quality and safety of health care and of medicinal products or medical devices.…’ as the legal basis most appropriate for clinical audit.
b. Emergency abdominal surgery (or emergency laparotomy) is associated with significant morbidity and mortality worldwide. The aim of the National Emergency Laparotomy Audit (NELA) is to enable the improvement of the quality of care of patients undergoing emergency laparotomy by providing high quality comparative information of the clinical practice and outcomes of all NHS providers of emergency laparotomy in England and Wales. NELA is a national clinical audit commissioned by the Healthcare Quality Improvement Partnership (HQIP) as part of the National Clinical and Patient Outcomes Programme (NCAPOP).
i. The audit has Section 251 approval to collect information on emergency laparotomy patients. Patients who do not want their data included can opt-out by emailing the NELA team or through the National Data Opt-Out portal.
2. The analysis by the NELA project team will only involve pseudonymised datasets that link information submitted by NHS hospitals and data supplied by NHS Digital. Date of death (mortality data) comes from the hospitals if it occurs during the hospital admission. For deaths outside hospital, NELA uses the NHS Digital mortality data which is linked along with the NELA audit data to NHS Digital data and then analysed by substantive employees of the Royal College of Surgeons (RCS) and substantive or contracted employees of the Royal College of Anaesthetists (RCoA).
The RCoA and RCS wish to link the patient records submitted to NELA with the Hospital Episode Statistics (HES) records for those patients. The NELA records relate only to an individual admission, and by linking to inpatient HES data, the Audit will be able to provide more precise and relevant information to NHS hospitals by allowing the RCoA and RCS to describe longer term outcomes (e.g., readmission rates) and to improve RCoA’s and RCS’s risk-adjustment models by using the extensive information on comorbid conditions held within HES (eg to calculate the Charlson Comorbidity score).
The RCoA and RCS also wish to link the patient records submitted to NELA with the Mortality Data on a quarterly basis to enable the Audit to monitor changes in postoperative outcomes (both short and longer-term mortality) for those patients. Access to this linked information will support this national clinical audit to improve the quality of care within NHS hospitals for a high-risk patient group.
3. HQIP have commissioned the RCoA to deliver the audit. RCoA are working in partnership with the Clinical Effectiveness Unit of the RCS and therefore make up the NELA project team. There are no other organisations involved. HQIP act as data controllers for the national clinical audit but do not have access to any data collected or analysed by the RCoA and RCS who are the data processors. NELA began in 2013 and the requested historic data provides important data when looking to improve mortality and length of stay.
4. As noted above, the RCoA and the RCS collaborate on NELA; no other organisations are involved. NELA’s primary purpose is to provide quality data to be used for clinical audit purposes; inclusion of HES and ONS mortality data help ensure the accuracy of the information. From time to time, NELA collaborate with external researchers by allowing access to NELA data after an application process. Only data collected as part of the audit (and not data from NHS Digital) are provided.
5. All patients over the age of 18 years, having a general surgical emergency laparotomy in all NHS hospitals in England and Wales are eligible for the audit and trusts/hospitals will submit their records. The aim is to include all emergency gastrointestinal procedures on the stomach, large and small bowel, for conditions such as perforation, bleeding, abdominal abscess or obstruction, via open or laparoscopic approaches. Emergency laparotomies following elective surgical complications will also be included in the NELA. The NELA includes all NHS hospitals in England and Wales that carry out emergency laparotomy. This includes any hospitals with acute admission, emergency departments, or specialist centres which carry out emergency laparotomy as a complication of other types of surgery.
6. NELA are requesting the following datasets:
a. Demographic data: data on date of death so as to ensure the audit has accurate information on this key outcome
b. Civil registration: as mortality is a key outcome measure of the audit, it is important to have accurate information, including information on diagnoses associated with the death
c. Critical care data: These specific data would allow investigation of the patterns of critical care across NHS Hospitals and examine whether patients with similar conditions and risk of death are being treated in a consistent way that is compatible with guideline recommendations. The NELA team continue to look for ways in which to enhance the audit. The NELA team has received feedback from participants and stakeholders that information about the delivery of critical care to Emergency Laparotomy patients would help to inform the development of local Quality Improvement initiatives, and the project would use the Critical Care data to develop performance indicators to provide hospitals with this information.
d. Admitted patient care data: this data is being requested to provide information on the number of expected emergency laparotomy procedures in any given audit year. This is critical information and allows NELA to compute case ascertainment rates for each participating hospital. Information from this dataset also allows us to examine data by deprivation score, which can provide important information on equity of services in different regions. Other variables from this dataset provide information on key measures like patient comorbidities and longer-term outcomes like readmission rates.
All data requested is at record level in order to link cases within NELA to the NHS Digital datasets. Data requested is pseudonymised as no direct patient identifiers are needed for analysis. We are requesting data for all of England as NELA is a national audit. NELA do not believe there are less intrusive alternatives to collecting this data, but are committed to only requesting that data which is necessary for the purposes of the audit. Data are only being requested for those patients with emergency laparotomy and only for those variables that cannot be reliably or easily obtained through hospital medical records.
7. HQIP act as data controllers and commissioners for the audit as noted above. NELA seek guidance from a clinical reference group made up of representatives from key stakeholder organisations. Neither these individuals or their organisations have access to NELA data or NHS Digital data. Funders include NHS England and the Welsh government. They provide general oversight for the audit but are not involved in the day-to-day management and do not have access to data.
Expected output
The linked dataset will be a product of this process and will enhance the quality of the comparative data for the audit in subsequent years.
The NELA is commissioned to produce a "State of the Nation" annual report each year. Reports utilising patient level information have been published in June 2015, July 2016, October 2017, November 2018, December 2019, and November 2020; these are available to view on the NELA website. Subsequent reports are scheduled to be published yearly, while ad hoc interim reports may also be published.
In order to more widely disseminate the findings of the audit, additional scientific publications will be produced. These outputs will be in the form of peer-review articles and conference presentations.
The results of the audit will also be disseminated at professional medical conferences and in peer-reviewed journals e.g. BMJ (British Medical Journal), BJA (British Journal of Anaesthesia), ASGBI (Association of Surgeons of Great Britain and Ireland) journal, and AAGBI (The Association of Anaesthetists of Great Britain and Ireland) at the time of the launch of the report or shortly after. Publications related to the Audit methods (e.g., a risk-adjustment model) rather than information of clinical practice and outcomes will be published on an ad hoc basis.
In response to participant feedback a Quality Improvement Report Dashboard has been created on the NELA Online Web Tool to assist sites with audit data collection and to promote local Quality Improvement work (Local hospital data can only be viewed by registered local hospital participants). The Quality Improvement Report Dashboard will only provide local units with aggregated information to compare their performance against a national average. The figures available to each unit will be based on their own local data (supplied by the units) and the Dashboard may therefore present small numbers on some occasions. Each individual user has their own login to the webtool which gives them access to only their own hospital local data. To access the webtool they require a username and password. No data supplied from NHS Digital is held or accessed here.
The following Reports and Publications have been created:
- 6 National Patient Audit Reports published in 2015, 2016, 2017, 2018, 2019, and 2020
- 2 Organisational Audit reports published in 2014 and 2017
- Quarterly hospital reports provided to participants since the start of 2017 and ongoing
- Quarterly Reports at AHSN level provided since Year 4 Quarter 3
In addition,
- Data is being used by CQC on their Dashboard (no record level data - all aggregated with small numbers suppressed)
- Data being used on MyNHS website (no record level data - all aggregated with small numbers suppressed)
- Data being used as part of the NHS England Best Practice Tariff.
All outputs and publications contain only aggregated data with small numbers suppressed in line with the HES Analysis Guide.
There will be no requirement nor attempt to re-identify individuals from the data.
The data will not be made available to any third parties except in the form of aggregated outputs with small numbers suppressed in line with the HES Analysis Guide.
RCoA/RCS have requested permission to release a small number of items from HES data back to participating hospitals sites. This would be provided only to hospitals via the online webtool so they could see which patients have been coded as Emergency Laparotomies in HES. RCoA/RCS would not be releasing information that the hospital does not already have, as they submitted it to HES in the first place.
RCoA/RCS have requested permission to release a small number of items – unsuppressed, at record-level – from HES data back to participating hospitals sites, to enable clinicians to explore and understand low-volume activity in their Trusts, to understand case ascertainment and - specifically - identify which patients have not had their data uploaded to NELA. This would be provided only to hospitals via the online webtool so they could see which patients have been coded as Emergency Laparotomies in HES. RCoA/RCS would not be releasing information that the hospital does not already have, as they submitted it – originally as SUS, then transformed by NHS Digital into HES – in the first place.
Benefits reported
Benefits derived from the research so far:
Headlines from reports of the last 6 years:
> national 30-day mortality rate falling from 11.8 per cent to 9.3 per cent over six years
> Average length of stay has fallen to 15.4 days from 19.2 days in year one.
> Making recommendations in the reports for local participating sites to follow. Includes recommendation for NELA Local Leads, Clinical Directors, Commissioners, Medical Directors, Multidisciplinary Teams, Royal Colleges and other professional stakeholders.
> Running regional NELA Quality Improvement workshops to assist hospital sites in using their local data to improve patient care
DARS-NIC-355855-R4G6G-v7.2 21 May 2020 to 31 December 2021
- Title
- MR1386 - National Emergency Laparotomy Audit
- Commercial
- No
- Sublicensing
- No
- Datasets
- 8
- Files released
- 27
Datasets: Civil Registrations of Death; Demographics; HES-ID to MPS-ID HES Admitted Patient Care; Hospital Episode Statistics Admitted Patient Care (HES APC); Hospital Episode Statistics Critical Care (HES Critical Care); MRIS - Cause of Death Report; MRIS - Cohort Event Notification Report; MRIS - Flagging Current Status Report
What changed from DARS-NIC-355855-R4G6G-v6.2
Text removed is struck through; text added is underlined. Unchanged paragraphs are summarised rather than repeated.
| Field | Was | Became |
|---|---|---|
| Start date | 2020-05-21 |
Datasets: + Civil Registrations of Death; + Demographics; + HES-ID to MPS-ID HES Admitted Patient Care
Unchanged: Objective for processing, Processing activities, Expected output, Expected measurable benefits, Benefits reported.
Objective for processing
HQIP has put forward Article 6(1)(e) as their legal basis under GDPR. However, HQIP are currently seeking legal advice on whether this is the most appropriate legal basis. Further to receipt of that legal advice, the stated GDPR lawful basis may change, and the NHS Digital data release register would be updated to reflect this.
Emergency abdominal surgery (or emergency laparotomy) is associated with significant morbidity and mortality worldwide. The aim of The National Emergency Laparotomy Audit (NELA) is to enable the improvement of the quality of care of patients undergoing emergency laparotomy by providing high quality comparative information of the clinical practice and outcomes of all NHS providers of emergency laparotomy in England and Wales. NELA is a national clinical audit commissioned by the Healthcare Quality Improvement Partnership (HQIP) as part of the National Clinical and Patient Outcomes Programme (NCAPOP).
HQIP have commissioned the Royal College of Anaesthetists (RCoA) to deliver the audit. RCoA are working in partnership with the Clinical Effectiveness Unit of the Royal College of Surgeons (RCS) and therefore make up the NELA project team. There are no other organisations involved. HQIP act as data controllers for the national clinical audit but do not have access to any data collected or analysed by the RCoA and RCS who are the data processors.
The analysis by the NELA project team will only involve pseudonymised datasets that links information submitted by NHS hospitals and data supplied by NHS Digital. Date of death (mortality data) comes from the hospitals if it occurs during the hospital admission. For deaths outside hospital, NELA uses the NHS Digital mortality data which is linked along with the NELA audit data to NHS Digital data and then analysed by substantive employees of RCS and substantive or contracted employees of RCoA.
The RCoA and RCS wish to link the patient records submitted to NELA with the Hospital Episode Statistics (HES) records for those patients. The NELA records relate only to an individual admission, and by linking to inpatient HES data, the Audit will be able to provide more precise and relevant information to NHS hospitals by allowing the RCoA and RCS to describe longer term outcomes (e.g., readmission rates) and to improve RCoA’s and RCS’s risk-adjustment models by using the extensive information on comorbid conditions held within HES. (eg to calculate the Charlson Comorbidity score)
The RCoA and RCS also wish to link the patient records submitted to NELA with the Mortality Data on a quarterly basis to enable the Audit to monitor changes in postoperative outcomes (both short and longer-term mortality) for those patients. Access to this linked information will support this national clinical audit to improve the quality of care within NHS hospitals for a high-risk patient group.
All patients over the age of 18 years, having a general surgical emergency laparotomy in all NHS hospitals in England and Wales are eligible for the audit and the trusts/hospitals will submit their records.
The aim is to include all emergency gastrointestinal procedures on the stomach, large and small bowel, for conditions such as perforation, bleeding, abdominal abscess or obstruction, via open or laparoscopic approaches.
Emergency laparotomies following elective surgical complications will also be included in the NELA.
The Project is requesting a three year DSA as this covers the length of the current National Audit contract with HQIP (NHS England & Welsh Government).The NELA includes all NHS hospitals in England and Wales that carry out emergency laparotomy. This includes any hospitals with acute admission, emergency departments, or specialist centres which carry out emergency laparotomy as a complication of other types of surgery.
NELA began in 2013 and the requested historic data provides important data when looking to improve mortality and length of stay.
The objectives of the Audit are:
1. To enable secondary care providers to improve the delivery of care to patients undergoing emergency laparotomy using information produced by the audit;
2. To provide comparative information on the organisation of care by providers of Emergency Laparotomy.
3. To provide comparative information on patient outcomes following surgery for Emergency Laparotomy.
4. To facilitate the development of effective change (quality improvement) initiatives and thereby spread examples of best practice and help local providers make the best possible use of audit results
In summary, the purpose of this request is to support national clinical audit, quality improvement within hospitals, and research on methods to monitor surgical outcomes.
The request for the addition of the HES Critical Care Data is for similar reasons to those for why the RCoA/RCS are requesting other data sets. These specific data would allow investigation of the patterns of critical care across NHS Hospitals and examine whether patients with similar conditions and risk of death are being treated in a consistent way that is compatible with guideline recommendations. The NELA team continue to look for ways in which to enhance the audit. The NELA team has received feedback from participants and stakeholders that information about the delivery of critical care to Emergency Laparotomy patients would help to inform the development of local Quality Improvement initiatives, and the project would use the Critical Care data to develop performance indicators to provide hospitals with this information.
Expected output
The linked dataset will be a product of this process and will enhance the quality of the comparative data for the audit in subsequent years.
The NELA is commissioned to produce a "State of the Nation" annual report each year. The first 4 reports utilising patient level information were published in June 2015, July 2016, October 2017 & 2018 and are available to view on the NELA website. Subsequent reports are scheduled to be published yearly.
In order to more widely disseminate the findings of the audit, additional scientific publications will be produced. These outputs will be in the form of peer-review articles and conference presentations.
The results of the audit will also be disseminated at professional medical conferences and in peer-reviewed journals e.g. BMJ (British Medical Journal), BJA (British Journal of Anaesthesia), ASGBI (Association of Surgeons of Great Britain and Ireland) journal, and AAGBI (The Association of Anaesthetists of Great Britain and Ireland) journal at the time of the launch of the report or shortly after. Publications related to the Audit methods (e.g., a risk-adjustment model) rather than information of clinical practice and outcomes will be published on an ad hoc basis.
In response to participant feedback a Quality Improvement Report Dashboard has been created on the NELA Online Web Tool to assist sites with audit data collection and to promote local Quality Improvement work (Local hospital data can only be viewed by registered local hospital participants). The Quality Improvement Report Dashboard will only provide local units with aggregated information to compare their performance against a national average. The figures available to each unit will be based on their own local data (supplied by the units) and the Dashboard may therefore present small numbers on some occasions. Each individual user has their own login to the webtool which gives them access to only their own hospital local data. To access the webtool they require a username and password. No data supplied from NHS Digital is held or accessed here.
The first phase of the Dashboard which has now been launched focuses on Case Ascertainment and Patient Demographics. The Patient Demographics section allows local participants to view some basic information on their hospital's population of patients undergoing emergency laparotomy, and how it compares to the audit-wide average. It focuses on characteristics such as patient age and operative urgency.
The Case Ascertainment aims at increasing case completeness and submission by providing a monthly list of cases entered/completed/not completed.
The next phase of the Dashboard will focus much more on Quality Improvement, feeding back key QI indicators and comparing hospital's local data with national audit-wide averages. Some of the measures reported back will include; Documentation of risk, Direct Admission to critical care etc.
The Royal College of Anaesthetists are currently in the process of developing the QI dashboard and hope to make further additions in the next few months.
The following Reports and Publications have been created:
- 4 National Patient Audit Reports published in 2015, 2016, 2017, 2018
- 2 Organisational Audit reports published in 2014 and 2017
- Quarterly hospital reports provided to participants since the start of 2017 and ongoing
- Quarterly Reports at AHSN level provided since Year 4 Quarter 3
In addition,
- Data is being used by CQC on their Dashboard (no record level data - all aggregated with small numbers suppressed)
- Data being used on MyNHS website (no record level data - all aggregated with small numbers suppressed)
- Work has started on introducing a BPT for Emergency Laparotomy using the audit data. NHS England are looking to introduce this BPT in 2019. The BPT will be using audit data to ensure compliance.
All outputs and publications contain only aggregated data with small numbers suppressed in line with the HES Analysis Guide.
There will be no requirement nor attempt to re-identify individuals from the data.
The data will not be made available to any third parties except in the form of aggregated outputs with small numbers suppressed in line with the HES Analysis Guide.
RCoA/RCS have requested permission to release a small number of items from HES data back to participating hospitals sites. This would be provided only to hospitals via the online webtool so they could see which patients have been coded as Emergency Laparotomies in HES. RCoA/RCS would not be releasing information that the hospital does not already have, as they submitted it to HES in the first place.
RCoA/RCS have requested permission to release a small number of items – unsuppressed, at record-level – from HES data back to participating hospitals sites, to enable clinicians to explore and understand low-volume activity in their Trusts, to understand case ascertainment and - specifically - identify which patients have not had their data uploaded to NELA. This would be provided only to hospitals via the online webtool so they could see which patients have been coded as Emergency Laparotomies in HES. RCoA/RCS would not be releasing information that the hospital does not already have, as they submitted it – originally as SUS, then transformed by NHS Digital into HES – in the first place.
Benefits reported
Benefits derived from the research so far:
Headlines from reports of the last 4 years:
> national 30-day mortality rate falling from 11.8 per cent to 9.5. per cent over four years, represents around 700 lives saved each year in comparison 2013-2014.
> Average length of stay has fallen to 15.6 days from 19.2 days in year one.
> Making recommendations in the reports for local participating sites to follow. Includes recommendation for NELA Local Leads, Clinical Directors, Commissioners, Medical Directors, Multidisciplinary Teams, Royal Colleges and other professional stakeholders.
> Running regional NELA Quality Improvement workshops to assist hospital sites in using their local data to improve patient care
Peer Reviewed Papers Published:
- C.M. Oliver, M.G. Bassett, T.E. Poulton, I.D. Anderson, D.M. Murray, M.P. Grocott, S.R. Moonesinghe for the National Emergency Laparotomy Audit collaborators. Organisational factors and mortality after an emergency laparotomy: multilevel analysis of 39 903 National Emergency Laparotomy Audit patients. BJA. 2018 Dec;121(6):1346-1356
- N. Eugene, C.M. Oliver, M.G. Bassett, T.E. Poulton, A. Kuryba, C. Johnston, I.D. Anderson, S.R. Moonesinghe, M.P. Grocott, D.M. Murray, D.A. Cromwell, K. Walker on behalf of the NELA collaboration§ Development and internal validation of a novel risk adjustment model for adult patients undergoing emergency laparotomy surgery: the National Emergency Laparotomy Audit risk model. BJA 2018 Oct;121(4):739-748
- O. Peacock, M. G. Bassett, A. Kuryba, K. Walker, E. Davies, I. Anderson et al. Thirty‐day mortality in patients undergoing laparotomy for small bowel obstruction. BJS March 2018; 105: 1006-1013.
Non-peer reviewed paper published:
- ‘NELA; Engaging with emergency laparotomy patients’ - RCoA Bulletin March 2018.
- Using data to improve care: NELA regional workshops - RCoA Bulletin July 2018
- Leeds Teaching Hospitals NHS Trust - NELA Nurse Leads - Blog for RCoA Website - July 2018
- NELA: more than just another audit - Sarah Hare Blog for RCoA Website - November 2018
Conferences/Presentations Attended:
There are multiple as the NELA Project Team attend many meetings throughout the year. The meetings listed below have taken place in the last 6 months (July - December 2018)
- National Clinical Audit Summit - London
- AAGBI Congress - London
- NELA London QI Workshop
- ICNARC Conference -London
- South East Thames Society of Anaesthetics - Maidstone
- NAP 6 Launch – London
- ELC Welsh Meeting - Cardiff
- ASGBI Congress - Liverpool
- Age Anaesthesia Conference - London
- RCoA Anaesthesia 2018 - London
- AAGBI Conference – Telford
- RCoA College Tutors – Leeds
- NENC AHSN Meeting – Newcastle
- Ebpom – London
- AAGBI Meeting – London
- NELA meets NASBO – Birmingham
- South West ELC Meeting - Bath
- Local/Regional Trainee FFICM Meeting – Bristol
DARS-NIC-355855-R4G6G-v6.2 1 January 2019 to 31 December 2021
- Title
- MR1386 - National Emergency Laparotomy Audit
- Commercial
- No
- Sublicensing
- No
- Datasets
- 5
- Files released
- 30
Datasets: Hospital Episode Statistics Admitted Patient Care (HES APC); Hospital Episode Statistics Critical Care (HES Critical Care); MRIS - Cause of Death Report; MRIS - Cohort Event Notification Report; MRIS - Flagging Current Status Report
What changed from DARS-NIC-355855-R4G6G-v5.10
Text removed is struck through; text added is underlined. Unchanged paragraphs are summarised rather than repeated.
| Field | Was | Became |
|---|---|---|
| Hospital Episode Statistics Critical Care (HES Critical Care): type of data | Identifiable |
Unchanged: Objective for processing, Processing activities, Expected output, Expected measurable benefits, Benefits reported.
Objective for processing
HQIP has put forward Article 6(1)(e) as their legal basis under GDPR. However, HQIP are currently seeking legal advice on whether this is the most appropriate legal basis. Further to receipt of that legal advice, the stated GDPR lawful basis may change, and the NHS Digital data release register would be updated to reflect this.
Emergency abdominal surgery (or emergency laparotomy) is associated with significant morbidity and mortality worldwide. The aim of The National Emergency Laparotomy Audit (NELA) is to enable the improvement of the quality of care of patients undergoing emergency laparotomy by providing high quality comparative information of the clinical practice and outcomes of all NHS providers of emergency laparotomy in England and Wales. NELA is a national clinical audit commissioned by the Healthcare Quality Improvement Partnership (HQIP) as part of the National Clinical and Patient Outcomes Programme (NCAPOP).
HQIP have commissioned the Royal College of Anaesthetists (RCoA) to deliver the audit. RCoA are working in partnership with the Clinical Effectiveness Unit of the Royal College of Surgeons (RCS) and therefore make up the NELA project team. There are no other organisations involved. HQIP act as data controllers for the national clinical audit but do not have access to any data collected or analysed by the RCoA and RCS who are the data processors.
The analysis by the NELA project team will only involve pseudonymised datasets that links information submitted by NHS hospitals and data supplied by NHS Digital. Date of death (mortality data) comes from the hospitals if it occurs during the hospital admission. For deaths outside hospital, NELA uses the NHS Digital mortality data which is linked along with the NELA audit data to NHS Digital data and then analysed by substantive employees of RCS and substantive or contracted employees of RCoA.
The RCoA and RCS wish to link the patient records submitted to NELA with the Hospital Episode Statistics (HES) records for those patients. The NELA records relate only to an individual admission, and by linking to inpatient HES data, the Audit will be able to provide more precise and relevant information to NHS hospitals by allowing the RCoA and RCS to describe longer term outcomes (e.g., readmission rates) and to improve RCoA’s and RCS’s risk-adjustment models by using the extensive information on comorbid conditions held within HES. (eg to calculate the Charlson Comorbidity score)
The RCoA and RCS also wish to link the patient records submitted to NELA with the Mortality Data on a quarterly basis to enable the Audit to monitor changes in postoperative outcomes (both short and longer-term mortality) for those patients. Access to this linked information will support this national clinical audit to improve the quality of care within NHS hospitals for a high-risk patient group.
All patients over the age of 18 years, having a general surgical emergency laparotomy in all NHS hospitals in England and Wales are eligible for the audit and the trusts/hospitals will submit their records.
The aim is to include all emergency gastrointestinal procedures on the stomach, large and small bowel, for conditions such as perforation, bleeding, abdominal abscess or obstruction, via open or laparoscopic approaches.
Emergency laparotomies following elective surgical complications will also be included in the NELA.
The Project is requesting a three year DSA as this covers the length of the current National Audit contract with HQIP (NHS England & Welsh Government).The NELA includes all NHS hospitals in England and Wales that carry out emergency laparotomy. This includes any hospitals with acute admission, emergency departments, or specialist centres which carry out emergency laparotomy as a complication of other types of surgery.
NELA began in 2013 and the requested historic data provides important data when looking to improve mortality and length of stay.
The objectives of the Audit are:
1. To enable secondary care providers to improve the delivery of care to patients undergoing emergency laparotomy using information produced by the audit;
2. To provide comparative information on the organisation of care by providers of Emergency Laparotomy.
3. To provide comparative information on patient outcomes following surgery for Emergency Laparotomy.
4. To facilitate the development of effective change (quality improvement) initiatives and thereby spread examples of best practice and help local providers make the best possible use of audit results
In summary, the purpose of this request is to support national clinical audit, quality improvement within hospitals, and research on methods to monitor surgical outcomes.
The request for the addition of the HES Critical Care Data is for similar reasons to those for why the RCoA/RCS are requesting other data sets. These specific data would allow investigation of the patterns of critical care across NHS Hospitals and examine whether patients with similar conditions and risk of death are being treated in a consistent way that is compatible with guideline recommendations. The NELA team continue to look for ways in which to enhance the audit. The NELA team has received feedback from participants and stakeholders that information about the delivery of critical care to Emergency Laparotomy patients would help to inform the development of local Quality Improvement initiatives, and the project would use the Critical Care data to develop performance indicators to provide hospitals with this information.
Expected output
The linked dataset will be a product of this process and will enhance the quality of the comparative data for the audit in subsequent years.
The NELA is commissioned to produce a "State of the Nation" annual report each year. The first 4 reports utilising patient level information were published in June 2015, July 2016, October 2017 & 2018 and are available to view on the NELA website. Subsequent reports are scheduled to be published yearly.
In order to more widely disseminate the findings of the audit, additional scientific publications will be produced. These outputs will be in the form of peer-review articles and conference presentations.
The results of the audit will also be disseminated at professional medical conferences and in peer-reviewed journals e.g. BMJ (British Medical Journal), BJA (British Journal of Anaesthesia), ASGBI (Association of Surgeons of Great Britain and Ireland) journal, and AAGBI (The Association of Anaesthetists of Great Britain and Ireland) journal at the time of the launch of the report or shortly after. Publications related to the Audit methods (e.g., a risk-adjustment model) rather than information of clinical practice and outcomes will be published on an ad hoc basis.
In response to participant feedback a Quality Improvement Report Dashboard has been created on the NELA Online Web Tool to assist sites with audit data collection and to promote local Quality Improvement work (Local hospital data can only be viewed by registered local hospital participants). The Quality Improvement Report Dashboard will only provide local units with aggregated information to compare their performance against a national average. The figures available to each unit will be based on their own local data (supplied by the units) and the Dashboard may therefore present small numbers on some occasions. Each individual user has their own login to the webtool which gives them access to only their own hospital local data. To access the webtool they require a username and password. No data supplied from NHS Digital is held or accessed here.
The first phase of the Dashboard which has now been launched focuses on Case Ascertainment and Patient Demographics. The Patient Demographics section allows local participants to view some basic information on their hospital's population of patients undergoing emergency laparotomy, and how it compares to the audit-wide average. It focuses on characteristics such as patient age and operative urgency.
The Case Ascertainment aims at increasing case completeness and submission by providing a monthly list of cases entered/completed/not completed.
The next phase of the Dashboard will focus much more on Quality Improvement, feeding back key QI indicators and comparing hospital's local data with national audit-wide averages. Some of the measures reported back will include; Documentation of risk, Direct Admission to critical care etc.
The Royal College of Anaesthetists are currently in the process of developing the QI dashboard and hope to make further additions in the next few months.
The following Reports and Publications have been created:
- 4 National Patient Audit Reports published in 2015, 2016, 2017, 2018
- 2 Organisational Audit reports published in 2014 and 2017
- Quarterly hospital reports provided to participants since the start of 2017 and ongoing
- Quarterly Reports at AHSN level provided since Year 4 Quarter 3
In addition,
- Data is being used by CQC on their Dashboard (no record level data - all aggregated with small numbers suppressed)
- Data being used on MyNHS website (no record level data - all aggregated with small numbers suppressed)
- Work has started on introducing a BPT for Emergency Laparotomy using the audit data. NHS England are looking to introduce this BPT in 2019. The BPT will be using audit data to ensure compliance.
All outputs and publications contain only aggregated data with small numbers suppressed in line with the HES Analysis Guide.
There will be no requirement nor attempt to re-identify individuals from the data.
The data will not be made available to any third parties except in the form of aggregated outputs with small numbers suppressed in line with the HES Analysis Guide.
RCoA/RCS have requested permission to release a small number of items from HES data back to participating hospitals sites. This would be provided only to hospitals via the online webtool so they could see which patients have been coded as Emergency Laparotomies in HES. RCoA/RCS would not be releasing information that the hospital does not already have, as they submitted it to HES in the first place.
RCoA/RCS have requested permission to release a small number of items – unsuppressed, at record-level – from HES data back to participating hospitals sites, to enable clinicians to explore and understand low-volume activity in their Trusts, to understand case ascertainment and - specifically - identify which patients have not had their data uploaded to NELA. This would be provided only to hospitals via the online webtool so they could see which patients have been coded as Emergency Laparotomies in HES. RCoA/RCS would not be releasing information that the hospital does not already have, as they submitted it – originally as SUS, then transformed by NHS Digital into HES – in the first place.
Benefits reported
Benefits derived from the research so far:
Headlines from reports of the last 4 years:
> national 30-day mortality rate falling from 11.8 per cent to 9.5. per cent over four years, represents around 700 lives saved each year in comparison 2013-2014.
> Average length of stay has fallen to 15.6 days from 19.2 days in year one.
> Making recommendations in the reports for local participating sites to follow. Includes recommendation for NELA Local Leads, Clinical Directors, Commissioners, Medical Directors, Multidisciplinary Teams, Royal Colleges and other professional stakeholders.
> Running regional NELA Quality Improvement workshops to assist hospital sites in using their local data to improve patient care
Peer Reviewed Papers Published:
- C.M. Oliver, M.G. Bassett, T.E. Poulton, I.D. Anderson, D.M. Murray, M.P. Grocott, S.R. Moonesinghe for the National Emergency Laparotomy Audit collaborators. Organisational factors and mortality after an emergency laparotomy: multilevel analysis of 39 903 National Emergency Laparotomy Audit patients. BJA. 2018 Dec;121(6):1346-1356
- N. Eugene, C.M. Oliver, M.G. Bassett, T.E. Poulton, A. Kuryba, C. Johnston, I.D. Anderson, S.R. Moonesinghe, M.P. Grocott, D.M. Murray, D.A. Cromwell, K. Walker on behalf of the NELA collaboration§ Development and internal validation of a novel risk adjustment model for adult patients undergoing emergency laparotomy surgery: the National Emergency Laparotomy Audit risk model. BJA 2018 Oct;121(4):739-748
- O. Peacock, M. G. Bassett, A. Kuryba, K. Walker, E. Davies, I. Anderson et al. Thirty‐day mortality in patients undergoing laparotomy for small bowel obstruction. BJS March 2018; 105: 1006-1013.
Non-peer reviewed paper published:
- ‘NELA; Engaging with emergency laparotomy patients’ - RCoA Bulletin March 2018.
- Using data to improve care: NELA regional workshops - RCoA Bulletin July 2018
- Leeds Teaching Hospitals NHS Trust - NELA Nurse Leads - Blog for RCoA Website - July 2018
- NELA: more than just another audit - Sarah Hare Blog for RCoA Website - November 2018
Conferences/Presentations Attended:
There are multiple as the NELA Project Team attend many meetings throughout the year. The meetings listed below have taken place in the last 6 months (July - December 2018)
- National Clinical Audit Summit - London
- AAGBI Congress - London
- NELA London QI Workshop
- ICNARC Conference -London
- South East Thames Society of Anaesthetics - Maidstone
- NAP 6 Launch – London
- ELC Welsh Meeting - Cardiff
- ASGBI Congress - Liverpool
- Age Anaesthesia Conference - London
- RCoA Anaesthesia 2018 - London
- AAGBI Conference – Telford
- RCoA College Tutors – Leeds
- NENC AHSN Meeting – Newcastle
- Ebpom – London
- AAGBI Meeting – London
- NELA meets NASBO – Birmingham
- South West ELC Meeting - Bath
- Local/Regional Trainee FFICM Meeting – Bristol
DARS-NIC-355855-R4G6G-v5.10 1 January 2019 to 31 December 2021
- Title
- MR1386 - National Emergency Laparotomy Audit
- Commercial
- No
- Sublicensing
- No
- Datasets
- 5
- Files released
- 1
Datasets: Hospital Episode Statistics Admitted Patient Care (HES APC); Hospital Episode Statistics Critical Care (HES Critical Care); MRIS - Cause of Death Report; MRIS - Cohort Event Notification Report; MRIS - Flagging Current Status Report
Objective for processing
HQIP has put forward Article 6(1)(e) as their legal basis under GDPR. However, HQIP are currently seeking legal advice on whether this is the most appropriate legal basis. Further to receipt of that legal advice, the stated GDPR lawful basis may change, and the NHS Digital data release register would be updated to reflect this.
Emergency abdominal surgery (or emergency laparotomy) is associated with significant morbidity and mortality worldwide. The aim of The National Emergency Laparotomy Audit (NELA) is to enable the improvement of the quality of care of patients undergoing emergency laparotomy by providing high quality comparative information of the clinical practice and outcomes of all NHS providers of emergency laparotomy in England and Wales. NELA is a national clinical audit commissioned by the Healthcare Quality Improvement Partnership (HQIP) as part of the National Clinical and Patient Outcomes Programme (NCAPOP).
HQIP have commissioned the Royal College of Anaesthetists (RCoA) to deliver the audit. RCoA are working in partnership with the Clinical Effectiveness Unit of the Royal College of Surgeons (RCS) and therefore make up the NELA project team. There are no other organisations involved. HQIP act as data controllers for the national clinical audit but do not have access to any data collected or analysed by the RCoA and RCS who are the data processors.
The analysis by the NELA project team will only involve pseudonymised datasets that links information submitted by NHS hospitals and data supplied by NHS Digital. Date of death (mortality data) comes from the hospitals if it occurs during the hospital admission. For deaths outside hospital, NELA uses the NHS Digital mortality data which is linked along with the NELA audit data to NHS Digital data and then analysed by substantive employees of RCS and substantive or contracted employees of RCoA.
The RCoA and RCS wish to link the patient records submitted to NELA with the Hospital Episode Statistics (HES) records for those patients. The NELA records relate only to an individual admission, and by linking to inpatient HES data, the Audit will be able to provide more precise and relevant information to NHS hospitals by allowing the RCoA and RCS to describe longer term outcomes (e.g., readmission rates) and to improve RCoA’s and RCS’s risk-adjustment models by using the extensive information on comorbid conditions held within HES. (eg to calculate the Charlson Comorbidity score)
The RCoA and RCS also wish to link the patient records submitted to NELA with the Mortality Data on a quarterly basis to enable the Audit to monitor changes in postoperative outcomes (both short and longer-term mortality) for those patients. Access to this linked information will support this national clinical audit to improve the quality of care within NHS hospitals for a high-risk patient group.
All patients over the age of 18 years, having a general surgical emergency laparotomy in all NHS hospitals in England and Wales are eligible for the audit and the trusts/hospitals will submit their records.
The aim is to include all emergency gastrointestinal procedures on the stomach, large and small bowel, for conditions such as perforation, bleeding, abdominal abscess or obstruction, via open or laparoscopic approaches.
Emergency laparotomies following elective surgical complications will also be included in the NELA.
The Project is requesting a three year DSA as this covers the length of the current National Audit contract with HQIP (NHS England & Welsh Government).The NELA includes all NHS hospitals in England and Wales that carry out emergency laparotomy. This includes any hospitals with acute admission, emergency departments, or specialist centres which carry out emergency laparotomy as a complication of other types of surgery.
NELA began in 2013 and the requested historic data provides important data when looking to improve mortality and length of stay.
The objectives of the Audit are:
1. To enable secondary care providers to improve the delivery of care to patients undergoing emergency laparotomy using information produced by the audit;
2. To provide comparative information on the organisation of care by providers of Emergency Laparotomy.
3. To provide comparative information on patient outcomes following surgery for Emergency Laparotomy.
4. To facilitate the development of effective change (quality improvement) initiatives and thereby spread examples of best practice and help local providers make the best possible use of audit results
In summary, the purpose of this request is to support national clinical audit, quality improvement within hospitals, and research on methods to monitor surgical outcomes.
The request for the addition of the HES Critical Care Data is for similar reasons to those for why the RCoA/RCS are requesting other data sets. These specific data would allow investigation of the patterns of critical care across NHS Hospitals and examine whether patients with similar conditions and risk of death are being treated in a consistent way that is compatible with guideline recommendations. The NELA team continue to look for ways in which to enhance the audit. The NELA team has received feedback from participants and stakeholders that information about the delivery of critical care to Emergency Laparotomy patients would help to inform the development of local Quality Improvement initiatives, and the project would use the Critical Care data to develop performance indicators to provide hospitals with this information.
Expected output
The linked dataset will be a product of this process and will enhance the quality of the comparative data for the audit in subsequent years.
The NELA is commissioned to produce a "State of the Nation" annual report each year. The first 4 reports utilising patient level information were published in June 2015, July 2016, October 2017 & 2018 and are available to view on the NELA website. Subsequent reports are scheduled to be published yearly.
In order to more widely disseminate the findings of the audit, additional scientific publications will be produced. These outputs will be in the form of peer-review articles and conference presentations.
The results of the audit will also be disseminated at professional medical conferences and in peer-reviewed journals e.g. BMJ (British Medical Journal), BJA (British Journal of Anaesthesia), ASGBI (Association of Surgeons of Great Britain and Ireland) journal, and AAGBI (The Association of Anaesthetists of Great Britain and Ireland) journal at the time of the launch of the report or shortly after. Publications related to the Audit methods (e.g., a risk-adjustment model) rather than information of clinical practice and outcomes will be published on an ad hoc basis.
In response to participant feedback a Quality Improvement Report Dashboard has been created on the NELA Online Web Tool to assist sites with audit data collection and to promote local Quality Improvement work (Local hospital data can only be viewed by registered local hospital participants). The Quality Improvement Report Dashboard will only provide local units with aggregated information to compare their performance against a national average. The figures available to each unit will be based on their own local data (supplied by the units) and the Dashboard may therefore present small numbers on some occasions. Each individual user has their own login to the webtool which gives them access to only their own hospital local data. To access the webtool they require a username and password. No data supplied from NHS Digital is held or accessed here.
The first phase of the Dashboard which has now been launched focuses on Case Ascertainment and Patient Demographics. The Patient Demographics section allows local participants to view some basic information on their hospital's population of patients undergoing emergency laparotomy, and how it compares to the audit-wide average. It focuses on characteristics such as patient age and operative urgency.
The Case Ascertainment aims at increasing case completeness and submission by providing a monthly list of cases entered/completed/not completed.
The next phase of the Dashboard will focus much more on Quality Improvement, feeding back key QI indicators and comparing hospital's local data with national audit-wide averages. Some of the measures reported back will include; Documentation of risk, Direct Admission to critical care etc.
The Royal College of Anaesthetists are currently in the process of developing the QI dashboard and hope to make further additions in the next few months.
The following Reports and Publications have been created:
- 4 National Patient Audit Reports published in 2015, 2016, 2017, 2018
- 2 Organisational Audit reports published in 2014 and 2017
- Quarterly hospital reports provided to participants since the start of 2017 and ongoing
- Quarterly Reports at AHSN level provided since Year 4 Quarter 3
In addition,
- Data is being used by CQC on their Dashboard (no record level data - all aggregated with small numbers suppressed)
- Data being used on MyNHS website (no record level data - all aggregated with small numbers suppressed)
- Work has started on introducing a BPT for Emergency Laparotomy using the audit data. NHS England are looking to introduce this BPT in 2019. The BPT will be using audit data to ensure compliance.
All outputs and publications contain only aggregated data with small numbers suppressed in line with the HES Analysis Guide.
There will be no requirement nor attempt to re-identify individuals from the data.
The data will not be made available to any third parties except in the form of aggregated outputs with small numbers suppressed in line with the HES Analysis Guide.
RCoA/RCS have requested permission to release a small number of items from HES data back to participating hospitals sites. This would be provided only to hospitals via the online webtool so they could see which patients have been coded as Emergency Laparotomies in HES. RCoA/RCS would not be releasing information that the hospital does not already have, as they submitted it to HES in the first place.
RCoA/RCS have requested permission to release a small number of items – unsuppressed, at record-level – from HES data back to participating hospitals sites, to enable clinicians to explore and understand low-volume activity in their Trusts, to understand case ascertainment and - specifically - identify which patients have not had their data uploaded to NELA. This would be provided only to hospitals via the online webtool so they could see which patients have been coded as Emergency Laparotomies in HES. RCoA/RCS would not be releasing information that the hospital does not already have, as they submitted it – originally as SUS, then transformed by NHS Digital into HES – in the first place.
Benefits reported
Benefits derived from the research so far:
Headlines from reports of the last 4 years:
> national 30-day mortality rate falling from 11.8 per cent to 9.5. per cent over four years, represents around 700 lives saved each year in comparison 2013-2014.
> Average length of stay has fallen to 15.6 days from 19.2 days in year one.
> Making recommendations in the reports for local participating sites to follow. Includes recommendation for NELA Local Leads, Clinical Directors, Commissioners, Medical Directors, Multidisciplinary Teams, Royal Colleges and other professional stakeholders.
> Running regional NELA Quality Improvement workshops to assist hospital sites in using their local data to improve patient care
Peer Reviewed Papers Published:
- C.M. Oliver, M.G. Bassett, T.E. Poulton, I.D. Anderson, D.M. Murray, M.P. Grocott, S.R. Moonesinghe for the National Emergency Laparotomy Audit collaborators. Organisational factors and mortality after an emergency laparotomy: multilevel analysis of 39 903 National Emergency Laparotomy Audit patients. BJA. 2018 Dec;121(6):1346-1356
- N. Eugene, C.M. Oliver, M.G. Bassett, T.E. Poulton, A. Kuryba, C. Johnston, I.D. Anderson, S.R. Moonesinghe, M.P. Grocott, D.M. Murray, D.A. Cromwell, K. Walker on behalf of the NELA collaboration§ Development and internal validation of a novel risk adjustment model for adult patients undergoing emergency laparotomy surgery: the National Emergency Laparotomy Audit risk model. BJA 2018 Oct;121(4):739-748
- O. Peacock, M. G. Bassett, A. Kuryba, K. Walker, E. Davies, I. Anderson et al. Thirty‐day mortality in patients undergoing laparotomy for small bowel obstruction. BJS March 2018; 105: 1006-1013.
Non-peer reviewed paper published:
- ‘NELA; Engaging with emergency laparotomy patients’ - RCoA Bulletin March 2018.
- Using data to improve care: NELA regional workshops - RCoA Bulletin July 2018
- Leeds Teaching Hospitals NHS Trust - NELA Nurse Leads - Blog for RCoA Website - July 2018
- NELA: more than just another audit - Sarah Hare Blog for RCoA Website - November 2018
Conferences/Presentations Attended:
There are multiple as the NELA Project Team attend many meetings throughout the year. The meetings listed below have taken place in the last 6 months (July - December 2018)
- National Clinical Audit Summit - London
- AAGBI Congress - London
- NELA London QI Workshop
- ICNARC Conference -London
- South East Thames Society of Anaesthetics - Maidstone
- NAP 6 Launch – London
- ELC Welsh Meeting - Cardiff
- ASGBI Congress - Liverpool
- Age Anaesthesia Conference - London
- RCoA Anaesthesia 2018 - London
- AAGBI Conference – Telford
- RCoA College Tutors – Leeds
- NENC AHSN Meeting – Newcastle
- Ebpom – London
- AAGBI Meeting – London
- NELA meets NASBO – Birmingham
- South West ELC Meeting - Bath
- Local/Regional Trainee FFICM Meeting – Bristol
Register history
When this agreement appeared in, or was edited in, each monthly edition of the register. Built by comparing every edition this site holds, the earliest of which is July 2021.
-
July 2021 —
already listed in the earliest edition this site holds, so it may be older. 3 versions: DARS-NIC-355855-R4G6G-v5.10, DARS-NIC-355855-R4G6G-v6.2, DARS-NIC-355855-R4G6G-v7.2
-
October 2021
Amended DARS-NIC-355855-R4G6G-v7.2
- Datasets: + HES-ID to MPS-ID HES Admitted Patient Care
-
February 2022
1 version added: DARS-NIC-355855-R4G6G-v8.4
-
April 2023
1 version added: DARS-NIC-355855-R4G6G-v9.21
-
March 2024
1 version added: DARS-NIC-355855-R4G6G-v10.3
-
August 2025
1 version added: DARS-NIC-355855-R4G6G-v11.5
-
October 2025
Renamed Data controllers: NHS England (Quarry House) now named NHS England. Not counted as a change.
"Amended in place" means NHS England changed the record without issuing a new version number. The register publishes no changelog for those edits; this site infers them by comparing editions. An edit is attributed to the edition it first appears in, not to the date it was made.
Cite this page
NHS England (2026) Data Uses Register, September 2026 edition, agreement DARS-NIC-355855-R4G6G, “National Emergency Laparotomy Audit (NELA)”. Read via NHS Data Access Explorer (unofficial), https://healthdatauses.uk/agreements/dars-nic-355855-r4g6g/ (accessed [date]).
This address stays the same, but the page is rebuilt with each monthly edition, so the citation names the edition it shows. Every edition's data is kept in the facts store.
Source: datausesregister_september2026.xlsx, September 2026 edition of the NHS England Data Uses Register. Search that workbook for DARS-NIC-355855-R4G6G to see the original rows.