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For General Practice Joining Wessex SDE

General Practice holds some of the richest data in the NHS. It is essential to understanding people’s health over time, including what happens before and after hospital care. That fuller picture can help support the discovery of life-saving treatments and medicines, improve diagnosis and care, support better patient pathways and waiting times, tackle health inequalities, and inform NHS service planning. For participating practices, Wessex SDE also provides a clearer and more consistent route into research, reduces repeated governance work, and supports value return to primary care.

This page is for GP practices invited to participate as data contributors. It brings together the documents, patient information materials, and contact details your practice needs to review participation and complete the joining process.

Step 1: Review the Documents

Start with the onboarding checklist, then read the Data Sharing Agreement, DPIA summary, and Value Return Framework. These explain what is being agreed, how data is protected, and what participation means for your practice.

Step 2: Sign and return

Complete the required documents and confirm your practice contact for information governance and to manage the onboarding process.

Step 3: Connect your data

Our data analysts and technical team will do the heavy lifting to connect your data safely into the SDE. We will also provide the materials you need to keep patients informed, and we are here to help if they have questions.

Common questions from General Practice

These answers are for practice teams who want a clear explanation of what participation means before reviewing the full documents. They do not replace the Data Sharing Agreement or DPIA.

What is our practice being asked to do?

Your practice is being asked to review the onboarding documents, sign the Data Sharing Agreement, confirm a practice information governance contact, update your privacy notice wording and display patient information materials in patient-facing areas. The Wessex SDE team will support the technical onboarding process and provide the poster, leaflet and wording needed to keep patients informed.

Why is General Practice data needed?

General Practice data gives researchers a fuller picture of people’s health over time. It helps approved studies understand long-term conditions, prevention, health inequalities, medicines, care pathways and what happens before and after hospital care. Used safely alongside hospital, community and other NHS data, it can support better research, service planning and improvements in patient care.

What is the Wessex SDE used for?

The Wessex SDE is used for approved health research and NHS planning. It is not used to make decisions about an individual patient’s care, make automated decisions about patients, or replace the systems used by General Practices, hospitals or other NHS services.

What approvals are in place?

The use of NHS patient data for research is protected by law and carefully regulated. The Health Research Authority has given Section 251 support to the Wessex SDE, following advice from the Confidentiality Advisory Group. This allows confidential patient information to be used for approved research where it would not be practical to contact every patient individually for consent, provided appropriate safeguards, transparency measures and patient opt-outs are in place.

What data may be involved?

Data may include information already recorded in NHS patient records, such as diagnoses, medicines, test results, appointments, treatments and demographic information. Some confidential patient information, including name, address, postcode, date of birth and NHS number, may be needed at the start to link records accurately, check data quality, remove duplicate records and apply patient opt-outs. This happens in the SDE’s Data Processing Environment. Researchers never have access to this part of the SDE and never see this identifiable patient information.

Can GP data be linked with other datasets?

Yes. Where it is necessary for an approved research project, GP data may be securely linked with other approved datasets. These may include hospital, community, mental health and relevant national NHS datasets, and in some cases other health or administrative datasets where appropriate approvals are in place.

Data linkage helps researchers understand the bigger picture while ensuring that identifiable information is handled only within the restricted Data Processing Environment. Researchers access only the minimum pseudonymised data needed for their approved project.

Will researchers see identifiable patient data?

No. Researchers never see names, addresses, NHS numbers or other direct identifiers. Identifiable information is only used in the restricted Data Processing Environment by authorised SDE technical staff. Before research access, identifiers are removed or replaced with secure codes, and the data is reduced to the minimum needed for the approved study.

How do researchers access the data?

Approved researchers access only the minimum pseudonymised data needed for their approved study. Each project is provided with its own secure, locked-down workspace, ensuring researchers can only access the data approved for that specific research. Researchers cannot download or remove raw patient data. Only checked, anonymised research outputs can leave the secure environment.

Who is involved in processing and protecting the data?

General Practices and NHS organisations provide the source data. University Hospital Southampton NHS Foundation Trust hosts Wessex SDE and oversees how data is managed and used.

Other organisations may support extraction, preparation, technical services and infrastructure. These include clinical system suppliers, extraction services, University of Southampton’s Clinical Informatics Research Unit (CIRU), and secure hosting and infrastructure providers. They support the SDE under NHS governance, security and contractual controls, and do not receive any data for their own purposes.

How is data kept safe?

The Wessex SDE uses a secure access model, so patient data stays within the NHS secure research environment rather than being sent to researchers.

Access is controlled through the Five Safes framework, ensuring that only approved people can access the minimum data needed for approved projects, within secure technical environments. Researchers cannot download raw patient data, and all results are checked before they can leave the SDE.

The Wessex SDE also meets recognised information security standards, including ISO/IEC 27001, and complies with NHS information governance and cyber security requirements.

How are research studies approved?

Researchers and their organisations must first be approved through a national accreditation process.

They must then submit a data access request to Wessex SDE. Requests are reviewed by the Wessex Data Access Committee, which includes public and professional representatives. The committee considers whether the research has clear public benefit, whether the data requested is necessary and proportionate, and whether the right safeguards are in place.

Can our practice choose which studies it supports?

Yes. Participating practices are kept informed about how their data is being used.

When a new study is approved to use General Practice data, practices are notified and have 10 working days to tell Wessex SDE if they do not want their data included in that study.

What choices do patients have?

Patients continue to have choices about how their NHS data is used.

Wessex SDE applies the National Data Opt-out, Type 1 Opt-out, and local Wessex SDE opt-out before data is made available for research.

If a patient opts out after their data has already been included in an approved research dataset, the opt-out will not be applied retrospectively to research that has already taken place. Their choice will apply to future studies.

What do we need to tell patients?

Yes. Participating practices are expected to display Wessex SDE patient information materials in accessible patient-facing areas, such as reception areas, waiting rooms and leaflet racks. We have posters and digital screen content that you can use. These are provided when you join the Wessex SDE.

These materials explain how data may be used, what safeguards are in place and what choices patients have. Practices should also add the supplied wording to their privacy notice or website.

How can patients see what their data is being used for?

Approved studies are published in the Wessex SDE Data Use Register.

Information about available datasets is also published through the Wessex Data Capabilities Register and, where appropriate, relevant national data libraries.

How long is data kept?

Data is only retained for as long as there is a lawful reason to keep it.

Information held within the Wessex SDE is managed in line with Wessex SDE policies and the NHS Records Management Code of Practice. Data is retained, archived or securely destroyed according to the approved purpose and relevant policy.

What happens if there is misuse or a data incident?

All activity within the SDE is monitored and auditable. Researchers and organisations must agree to strict terms of use and information governance requirements before access is granted.

Suspected misuse, security incidents or data breaches are investigated through established information governance processes. Where required, incidents are reported to regulators and affected organisations.

What assurance is in place?

The Wessex SDE operates within a framework of NHS governance, independent oversight and external assurance.

All requests to access data are reviewed by the independent Wessex Data Access Committee, which includes both professional experts and public representatives. The Committee considers whether each project has a clear public benefit, appropriate approvals, proportionate data requirements and robust safeguards before access is granted.

Public contributors are also involved throughout Wessex SDE governance, helping shape policies, communications, research scrutiny and the way the service develops.

In addition, the Wessex SDE’s arrangements are supported by review from the Health Research Authority, Confidentiality Advisory Group and, where required, Research Ethics Committees. The SDE and its technical partners are also subject to NHS information governance, security and audit requirements, including the Data Security and Protection Toolkit, ICO registration, ISO/IEC 27001 and Cyber Essentials.

Can arrangements change in future?

Material changes to purposes, data flows, organisations involved, safeguards, approvals or patient choice arrangements would need to be reviewed through the appropriate governance process.

This may include updates to the DPIA, Data Sharing Agreement, Data Access Committee review, HRA or CAG review, or further patient and public scrutiny.

Does GP data leave the UK?

No. General Practice data remains within the United Kingdom. Only anonymous research outputs may leave the secure environment, and only after review and disclosure checks.

Contact us

For support with onboarding, patient notification materials or hard copies of posters and leaflets, contact the Wessex SDE team. We can help with:

  • Data Sharing Agreement and DPIA questions
  • Onboarding and technical support
  • Information governance advice
  • Providing patient posters and leaflets
  • Questions from practices or patients