We follow our participants’ health by linking to their electronic medical records, which includes data on hospital stays, cancer diagnoses and causes of death.

These data enable researchers to know what health conditions participants are experiencing over time and when they were diagnosed. Combined with other data types, researchers around the world have been able to make health discoveries that would not otherwise have been possible.

Healthcare records data at a glance

Primary care data

We receive coded GP data, which contain codes about diagnoses, prescriptions and referrals, but no confidential notes or letters. Learn why access to GP data is so important.

Hospital inpatient data

We receive coded hospital data, which contains information about diagnoses and procedures, for all of our participants.

Cancer data

We receive data on all of our participants’ cancer diagnoses from national cancer registries.

Death data

If one of our participants dies, we receive information about the date and cause of death from national death registries.

Algorithmically-defined health outcomes and first occurrences of health outcomes

For dementia, stroke and some other conditions, we use algorithms that use data from across different medical records (and self-report) to identify whether a participant has a certain health outcome and when it was first diagnosed.

Healthcare records research stories

Read a selection of stories about how healthcare is being changed by discoveries made with healthcare records.

Irregular bedtimes increase the risk of developing conditions ranging from depression to bipolar disorder, data from 100,000 UK Biobank participants suggest.

Risk calculator developed with data from 200,000 UK Biobank participants estimates someone’s likelihood of becoming ill from excess body fat.

Data from more than 53,000 UK Biobank participants suggest that small improvements to sleep, diet and exercise have an outsized effect on heart health.

Brain regions responsible for memory and emotion are affected by menopause, brain scans from 11,000 UK Biobank participants suggest.

Explore our other data categories

Magnetic resonance images, bone-density scans, carotid artery ultrasound and more

Proteins, metabolites, infectious disease markers and other biomarkers

Genotyping, exome and whole-genome information

Participants’ information on health and lifestyle collected via online or touchscreen questionnaires

Baseline data from physical exams, vision and hearing tests, activity monitor and more

Participants’ self-reported data on health and lifestyle

Derived data on participants’ environment, such as local air and noise pollution