A mixed methods evaluation of the National Perioperative Screening and Optimisation Programme (NPSOP) on patient centred outcomes- using the Hospital Episode Statistics
University College London (UCL) · Academic
In term In term in the September 2026 edition: the latest version runs to 24 August 2027.
- Reference
- DARS-NIC-756900-Q2J3K
- Current version
- v1.3
- Term of current version
- 5 June 2026 to 24 August 2027
- Start date
- 25 August 2025
- Data controller
- Sole Data Controller
- Commercial purposes
- No
- Sublicensing
- No
- Files released to date
- 0
Why the data was released
Objective for processing
University College London (UCL) requires access to NHS England data for the purpose of the following research project:
A mixed methods evaluation of the National Perioperative Screening and Optimisation Programme (NPSOP) on patient centred outcomes- using the Hospital Episode Statistics
The following is a summary of the aims of the research project provided by UCL:
Patient safety is a priority for healthcare systems. In safe systems, patients would be saved from avoidable harm, both from their own conditions, and from the care and treatments provided to them. Amongst the highest risk clinical settings are Surgical, Perioperative, Acute and Critical carE (SPACE) services, treating >25 million NHS patients annually. SPACE services are being rapidly redesigned to expand capacity and increase productivity, using largely untested pathways of care, some of which include the transitions between primary and secondary care. In April 2023, all providers were asked to establish perioperative care co-ordination teams- also known as the National Perioperative Screen and Optimisation Programme (NPSOP). These teams could consist of, as examples, care co-ordinators, nurses and perioperative physicians who will carry out assessments of health needs to inform pre- and post-operative care and identify surgical risk factors. They would identify low-risk patients who do not need to attend face-to-face preoperative assessment and patients who could be treated in elective hubs focused on providing High Volume Low Complexity (HVLC) surgery. This intervention was expected to be rolled out in all hospitals in England by April 2024.
The team at UCL are part of the NIHR Central London Patient Safety Research Collaboration. One main workstream of the research collaboration is to evaluate this national intervention. The aim of this evaluation is to quantitively evaluate National Perioperative Screening and Optimisation Programme (NPSOP) on patient centred outcomes.
Processing activities
No data will flow to NHS England for the purposes of this Data Sharing Agreement (DSA).
NHS England will grant access to the Data via the Secure Data Environment (SDE). The SDE is a secure data and research analysis platform. It allows approved researchers with approved projects access to pseudonymised data and industry-leading analytics tools.
NHS England will provide access to the relevant records from the HES and Deaths datasets to UCL via NHS England Secure Data Environment (SDE). The Data will contain no direct identifying data items. The Data will be pseudonymised and individuals cannot be reidentified through linkage with other data in the possession of the recipient.
SDE users can request exportation of aggregated analysis results (suppressed and summarised according to the NHSE SDE Disclosure Control rules) subject to review and approval by the NHS England SDE Output Checking team. The SDE Output Checking team will ensure that no output contains information which could be used either on its own or in conjunction with other data to breach an individual's privacy.
Users must identify themselves via a multi-factor authentication mechanism and are only able to access the datasets detailed within this DSA. The access and use of the system is fully auditable, and all users must comply with the use of the Data as specified in this DSA.
Users are only authorised to access the Data specified in this DSA and can utilise a variety of analytical tools available within the SDE platform. Users are not permitted to export record-level data from the SDE.
The Data will be stored on servers at NHS England.
The Data will be accessed by authorised personnel via remote access.
The Controller must confirm and provide evidence upon audit by NHS England that access via any remote device complies with the data security obligations within this DSA and the Data Sharing Framework Contract.
For remote access:
- Remote access will only be from secure locations situated within the territory of use (as further restricted elsewhere within the DSA if so done) stated within this DSA;
- Access controls granting users the minimum level of access required are in place;
- Remote access is only via secure connections (e.g., VPNs or secure protocols) to protect data;
- Multifactor authentication (MFA) is required for remote access;
- Device security, including up-to-date software and operating systems, antivirus software, and enabled firewalls are utilised for the remote access;
- All remote access is undertaken within the scope of the organisation’s DSPT (or other security arrangements as per this DSA) and complies with the organisation’s remote access policy.
The above applies in addition to any condition set out elsewhere within the DSA (e.g. who may carry out processing, and for what purpose).
The Data will not be linked with any other data outside of this agreement.
Expected output
The expected outputs of the processing will be:
> Manuscripts submissions to peer reviewed journals such as the British Journal of Anaesthesia
> Presentations at national conferences hosted by the Association of Anaesthetists of Great Britain and Ireland, the Royal College of Anaesthetists, and the Intensive Care Society
The outputs will not contain NHS England Data and will only contain aggregated information with small numbers suppressed as appropriate in line with the relevant disclosure rules for the dataset(s) from which the information was derived.
The outputs will be communicated to relevant recipients through the following dissemination channels:
> Journals
> Conferences
Expected measurable benefits
This is a national programme, with implementation taking place in relation to multiple healthcare conditions, across different types of hospital organisations based in diverse geographic and socioeconomic contexts. It is likely that implementation will have progressed variably across different clinical and organisational settings. In addition, some settings or specialties (e.g. bariatric surgery) have more well-established multidisciplinary preoperative pathways which aim to optimise comorbidities and reduce the risk of patients undergoing surgery without critical modifiable health issues having been addressed.
Therefore, analysis of this programme offers several opportunities to identify and share learning about implementation approaches and factors influencing uptake and experience of these services.
The use of the data could:
> help the system to better understand the health and care needs of populations.
> lead to the identification or improvement of treatments or interventions, or health and care system design to improve health and care outcomes or experience.
> advance understanding of regional and national trends in health and social care needs.
> advance understanding of the need for, or effectiveness of, preventative health and care measures for particular populations or conditions such as obesity and diabetes.
> inform planning health services and programmes, for example to improve equity of access, experience and outcomes.
> inform decisions on how to effectively allocate and evaluate funding according to health needs.
> provide a mechanism for checking the quality of care. This could include identifying areas of good practice to learn from, or areas of poorer practice which need to be addressed.
> support knowledge creation or exploratory research (and the innovations and developments that might result from that exploratory work).
Subject to the findings of this research, patients are expected to benefit directly from the early screening and health optimisation programme through improved surgical safety, leading to fewer complications and a better recovery. This includes being more physically and psychologically prepared for their operation, experiencing fewer distressing last-minute cancellations, and feeling more informed and supported in their care. Ultimately, successful implementation and positive findings could mean patients spend more days alive and out of the hospital post-surgery, returning home sooner where appropriate, and potentially enjoying longer-term health improvements as a result of pre-surgical optimisation.
It is hoped that this evaluation will provide important evidence of the national programme on patient centred health outcomes and consider whether the related costs are good value for the money what might be useful for the future policy consideration.
To optimise public benefits from this research, the study team plans several actions focused on timely and accessible dissemination of findings. Formative learning and interim findings will be shared on an ongoing basis with participating national and local stakeholders, including NHS bodies, allowing for real-time insights to inform programme improvements. Crucially, Patient and Public Involvement and Engagement (PPIE) members are embedded in the dissemination strategy; they will contribute to creating outputs in clear, accessible language, co-authoring articles and summaries, and potentially speaking at presentations to ensure the lessons learned are relevant and understandable to patients and the wider public.
Benefits reported so far
To date, this project has successfully linked HES and ONS data to establish a highly robust, validated baseline of Days Alive and Out of Hospital (DAOH), emergency readmissions, and mortality for patients undergoing colorectal cancer surgery, abdominal aortic aneurysm repair, and primary knee replacement. By accurately mapping complex, overlapping hospital spells, UCL have provided the National Perioperative Screening and Optimisation Programme (NPSOP) with a comprehensive, integrated view of postoperative recovery trajectories. The primary benefit yielded to date is the creation of this high-fidelity evidence base, and further analyses are planned to generate further evidence to achieve the initial planned research aims.
Datasets on the current version
Legal basis for provision: Health and Social Care Act 2012 – s261(2)(a)
| Dataset | Type of data | Sensitivity | Frequency | Confidential data |
|---|---|---|---|---|
| Civil Registrations of Death | Anonymised - ICO Code Compliant | Sensitive | System Access | Does not include the flow of confidential data |
| Hospital Episode Statistics Admitted Patient Care (HES APC) | Anonymised - ICO Code Compliant | Non-Sensitive | System Access | Does not include the flow of confidential data |
| Hospital Episode Statistics Critical Care (HES Critical Care) | Anonymised - ICO Code Compliant | Non-Sensitive | System Access | Does not include the flow of confidential data |
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.
No files recorded as released under this agreement.
Version history
The register lists each renewal of this agreement as a separate row. This site has 2 versions.
DARS-NIC-756900-Q2J3K-v1.3 5 June 2026 to 24 August 2027
- Title
- A mixed methods evaluation of the National Perioperative Screening and Optimisation Programme (NPSOP) on patient centred outcomes- using the Hospital Episode Statistics
- Commercial
- No
- Sublicensing
- No
- Datasets
- 3
- Files released
- 0
Datasets: Civil Registrations of Death; Hospital Episode Statistics Admitted Patient Care (HES APC); Hospital Episode Statistics Critical Care (HES Critical Care)
What changed from DARS-NIC-756900-Q2J3K-v0.15
Text removed is struck through; text added is underlined. Unchanged paragraphs are summarised rather than repeated.
| Field | Was | Became |
|---|---|---|
| Start date | 2026-06-05 | |
| End date | 2027-08-24 |
Objective for processing
[5 paragraphs unchanged]
The following NHS England Data will be accessed:
> Hospital Episode Statistics (HES)
- Admitted Patient Care (APC)
- Critical Care (CC)
> Civil Registration Mortality
These datasets are required to assess (1) whether there is any improvement in patient safety measures such as Days Alive and Out of Hospital (DAOH), length of stay (LOS) in hospital, emergency re-admission in 30 days after the intervention compared to before the NPSOP, (2) whether there are any variations by geographical region, procedures, deprivation and ethnicity, and (3) whether there is any variation in related secondary care costs before and after NPSOP.
The level of the Data will be:
> Pseudonymised
The Data will be minimised as follows:
- Limited to a cohort defined by NHS England as all adults patients (18 and over at time of surgery) diagnosed with having undergone colorectal cancer surgery, repair of abdominal aortic aneurism or knee replacement at an NHS hospital in England.
- Data between 2018/19 - 2024/25 required. For each individual, data is only required up to 1 year after their date of surgery.
UCL is the research sponsor and the controller as the organisation responsible for ensuring that the Data will only be processed for the purpose described above.
The lawful basis for processing personal data under the UK GDPR is:
Article 6(1)(e) - 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;
The lawful basis for processing special category data under the UK GDPR is:
Article 9(2)(j) - processing is necessary for archiving purposes in the public interest, scientific or historical research purposes or statistical purposes in accordance with Article 89(1) based on Union or Member State law which shall be proportionate to the aim pursued, respect the essence of the right to data protection and provide for suitable and specific measures to safeguard the fundamental rights and the interests of the data subject.
This research is of significant public interest because it directly addresses the safety, experience, and outcomes for a vast number of people undergoing surgery in the NHS each year. By evaluating a national programme aimed at early screening and health optimisation before operations, the findings will help determine if these changes lead to fewer complications, reduced cancellations, and better recovery for patients, ultimately contributing to a safer, more efficient, and more patient-focused surgical care system for everyone.
The funding is provided by the National Institute for Health and Care Research (NIHR) Central London Patient Safety Research Collaboration.
The funder will have no ability to suppress or otherwise limit the publication of findings.
Data will be accessed by:
> Individuals holding an honorary contract under the supervision of a substantive employee of UCL for the purposes described in this DSA only. UCL must maintain records in a single location that cover the following details of each individual given access under an honorary contract:
- Their substantive employer;
- Their role in respect of the purpose for the processing specified in the DSA;
- The start date and end date of the duration in which the Data will be accessed by the individual under an honorary contract;
- The necessity for the Data to be accessed by the person(s) holding an honorary contract, instead of a substantive employee of an organisation named as controller or a processor in this DSA;
- Confirmation that an appropriate contract is in place which follows the relevant guidance and is countersigned by the substantive employer of the honorary contract holder.
Processing activities
[17 paragraphs unchanged]
Remote processing will be from secure locations within England. The data will not leave England at any time.
The Data will not be linked with any other data outside of this agreement.
Access is restricted to employees or honorary contractors of UCL who have authorisation from the lead and senior author of the mixed methods evaluation.
All personnel accessing the Data have been appropriately trained in data protection and confidentiality.
The Data will not be linked with any other data.
Researchers from the NIHR Central London Patient Safety Research Collaboration (CL PSRC) at UCL will analyse the Data for the purposes described above.
Expected output
[7 paragraphs unchanged]
Outputs are expected to be achieved within a year of the second data drop, which will be requested in a future iteration of this DSA, expected in 2026.
Benefits reported
Yielded Benefits is not a requirement for new applications.
To date, this project has successfully linked HES and ONS data to establish a highly robust, validated baseline of Days Alive and Out of Hospital (DAOH), emergency readmissions, and mortality for patients undergoing colorectal cancer surgery, abdominal aortic aneurysm repair, and primary knee replacement. By accurately mapping complex, overlapping hospital spells, UCL have provided the National Perioperative Screening and Optimisation Programme (NPSOP) with a comprehensive, integrated view of postoperative recovery trajectories. The primary benefit yielded to date is the creation of this high-fidelity evidence base, and further analyses are planned to generate further evidence to achieve the initial planned research aims.
Unchanged: Expected measurable benefits.
DARS-NIC-756900-Q2J3K-v0.15 25 August 2025 to 24 August 2026
- Title
- A mixed methods evaluation of the National Perioperative Screening and Optimisation Programme (NPSOP) on patient centred outcomes- using the Hospital Episode Statistics
- Commercial
- No
- Sublicensing
- No
- Datasets
- 3
- Files released
- 0
Datasets: Civil Registrations of Death; Hospital Episode Statistics Admitted Patient Care (HES APC); Hospital Episode Statistics Critical Care (HES Critical Care)
Objective for processing
University College London (UCL) requires access to NHS England data for the purpose of the following research project:
A mixed methods evaluation of the National Perioperative Screening and Optimisation Programme (NPSOP) on patient centred outcomes- using the Hospital Episode Statistics
The following is a summary of the aims of the research project provided by UCL:
Patient safety is a priority for healthcare systems. In safe systems, patients would be saved from avoidable harm, both from their own conditions, and from the care and treatments provided to them. Amongst the highest risk clinical settings are Surgical, Perioperative, Acute and Critical carE (SPACE) services, treating >25 million NHS patients annually. SPACE services are being rapidly redesigned to expand capacity and increase productivity, using largely untested pathways of care, some of which include the transitions between primary and secondary care. In April 2023, all providers were asked to establish perioperative care co-ordination teams- also known as the National Perioperative Screen and Optimisation Programme (NPSOP). These teams could consist of, as examples, care co-ordinators, nurses and perioperative physicians who will carry out assessments of health needs to inform pre- and post-operative care and identify surgical risk factors. They would identify low-risk patients who do not need to attend face-to-face preoperative assessment and patients who could be treated in elective hubs focused on providing High Volume Low Complexity (HVLC) surgery. This intervention was expected to be rolled out in all hospitals in England by April 2024.
The team at UCL are part of the NIHR Central London Patient Safety Research Collaboration. One main workstream of the research collaboration is to evaluate this national intervention. The aim of this evaluation is to quantitively evaluate National Perioperative Screening and Optimisation Programme (NPSOP) on patient centred outcomes.
The following NHS England Data will be accessed:
> Hospital Episode Statistics (HES)
- Admitted Patient Care (APC)
- Critical Care (CC)
> Civil Registration Mortality
These datasets are required to assess (1) whether there is any improvement in patient safety measures such as Days Alive and Out of Hospital (DAOH), length of stay (LOS) in hospital, emergency re-admission in 30 days after the intervention compared to before the NPSOP, (2) whether there are any variations by geographical region, procedures, deprivation and ethnicity, and (3) whether there is any variation in related secondary care costs before and after NPSOP.
The level of the Data will be:
> Pseudonymised
The Data will be minimised as follows:
- Limited to a cohort defined by NHS England as all adults patients (18 and over at time of surgery) diagnosed with having undergone colorectal cancer surgery, repair of abdominal aortic aneurism or knee replacement at an NHS hospital in England.
- Data between 2018/19 - 2024/25 required. For each individual, data is only required up to 1 year after their date of surgery.
UCL is the research sponsor and the controller as the organisation responsible for ensuring that the Data will only be processed for the purpose described above.
The lawful basis for processing personal data under the UK GDPR is:
Article 6(1)(e) - 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;
The lawful basis for processing special category data under the UK GDPR is:
Article 9(2)(j) - processing is necessary for archiving purposes in the public interest, scientific or historical research purposes or statistical purposes in accordance with Article 89(1) based on Union or Member State law which shall be proportionate to the aim pursued, respect the essence of the right to data protection and provide for suitable and specific measures to safeguard the fundamental rights and the interests of the data subject.
This research is of significant public interest because it directly addresses the safety, experience, and outcomes for a vast number of people undergoing surgery in the NHS each year. By evaluating a national programme aimed at early screening and health optimisation before operations, the findings will help determine if these changes lead to fewer complications, reduced cancellations, and better recovery for patients, ultimately contributing to a safer, more efficient, and more patient-focused surgical care system for everyone.
The funding is provided by the National Institute for Health and Care Research (NIHR) Central London Patient Safety Research Collaboration.
The funder will have no ability to suppress or otherwise limit the publication of findings.
Data will be accessed by:
> Individuals holding an honorary contract under the supervision of a substantive employee of UCL for the purposes described in this DSA only. UCL must maintain records in a single location that cover the following details of each individual given access under an honorary contract:
- Their substantive employer;
- Their role in respect of the purpose for the processing specified in the DSA;
- The start date and end date of the duration in which the Data will be accessed by the individual under an honorary contract;
- The necessity for the Data to be accessed by the person(s) holding an honorary contract, instead of a substantive employee of an organisation named as controller or a processor in this DSA;
- Confirmation that an appropriate contract is in place which follows the relevant guidance and is countersigned by the substantive employer of the honorary contract holder.
Expected output
The expected outputs of the processing will be:
> Manuscripts submissions to peer reviewed journals such as the British Journal of Anaesthesia
> Presentations at national conferences hosted by the Association of Anaesthetists of Great Britain and Ireland, the Royal College of Anaesthetists, and the Intensive Care Society
The outputs will not contain NHS England Data and will only contain aggregated information with small numbers suppressed as appropriate in line with the relevant disclosure rules for the dataset(s) from which the information was derived.
The outputs will be communicated to relevant recipients through the following dissemination channels:
> Journals
> Conferences
Outputs are expected to be achieved within a year of the second data drop, which will be requested in a future iteration of this DSA, expected in 2026.
Benefits reported
Yielded Benefits is not a requirement for new applications.
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.
-
November 2025 —
first listed. 1 version: DARS-NIC-756900-Q2J3K-v0.15
-
August 2026
1 version added: DARS-NIC-756900-Q2J3K-v1.3
Cite this page
NHS England (2026) Data Uses Register, September 2026 edition, agreement DARS-NIC-756900-Q2J3K, “A mixed methods evaluation of the National Perioperative Screening and Optimisation Programme (NPSOP) on patient centred outcomes- using the Hospital Episode Statistics”. Read via NHS Data Access Explorer (unofficial), https://healthdatauses.uk/agreements/dars-nic-756900-q2j3k/ (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-756900-Q2J3K to see the original rows.