Whole Population Data

We aim to improve access to and use of high-quality, linked health datasets covering entire populations across the UK. 

Theme Lead: Professor Angela Wood

By enabling researchers to securely analyse de-identified, routinely collected health data, we help generate insights that drive better healthcare decisions, inform policy, and ensure research is inclusive and represents the whole population, ultimately improving patient outcomes.  

If you’re a researcher, clinician, or policymaker interested in working with us or using whole population data for cardiovascular research, contact us at bhfdsc@hdruk.ac.uk.  

What we do

We work closely with national data custodians to facilitate faster, more efficient, and secure access to whole population health data for cardiovascular research. Our goal is to streamline the process of accessing, curating, and analysing linked datasets across all four nations of the UK.  

  • Accelerating data access: We provide a single, streamlined project proposal and review process across the UK nations.  
  • Ensuring data security: All research is conducted within Trusted Research Environments (TREs) or Secure Data Environments (SDEs), safeguarding patient privacy while enabling valuable insights.  
  • Supporting data curation and analysis: Our team provides tools and expertise to help researchers efficiently access and use whole population data for high-quality, reproducible research.[link to resources]  
  • Working closely with patients and the public: This ensures our research is transparent, meaningful, and aligned with public priorities. Their input helps shape data access policies, research directions, and how findings are communicated for maximum public benefit.  

Key areas of work

Making whole population data more accessible 

We have partnered with NHS England to enable, for the first time, analysis of linked health datasets for the entire population of England. These de-identified records are securely accessible within NHS England’s Secure Data Environment (SDE), ensuring privacy and security while enabling population-wide research. 

Read the full publication.

CVD-COVID-UK / COVID-IMPACT

We coordinate major cardiovascular research programmes, providing streamlined access to national-scale data. This national research consortium explores the links between COVID-19 and cardiovascular disease. 

  • 80+ cardiovascular studies supported 
  • 400+ researchers from 50+ NHS and academic institutions
  • 40+ publications shaping cardiovascular research 

Learn more. 

Supporting research across nations

Cross-nation research remains challenging due to differences in data formats and environments. To address this, we: 

  • Standardise data using the OMOP Common Data Model, simplifying cross-nation and international analyses. 
  • Collaborate globally as a data partner in the European Health Data Evidence Network (EHDEN), aligning UK research with international standards. 

Championing open science

We promote transparency and collaboration by making all research outputs publicly available: 

  • Code, protocols, and phenotype algorithms: Available via GitHub, HDR Innovation Gateway, and the HDR UK Phenotype Library. 
  • Pre-publication sharing: Supporting reproducibility and accelerating scientific discovery. 

What is Whole Population Data?

Whole population data refers to comprehensive health records covering an entire nation, collected as part of routine NHS care. These electronic health records (EHRs) include:  

  • GP visits and hospital admission  
  • Prescriptions and treatments  
  • Diagnoses and health outcomes  

By analysing whole population data, researchers can:  

  • Generate truly representative findings across all demographic groups  
  • Study rare conditions that may not appear in smaller datasets  
  • Inform healthcare policy and service planning with real-world evidence  

Areas of work

Find out more about our data-led research.