Academic Network for General Practice Amsterdam UMC database (ANHA)
ANHA is an ongoing longitudinal database containing routine general practice care data from over 1.45 million patients registered with general practitioners (GPs) in the Amsterdam metropolitan area, the Netherlands. Of the 1.45 million patients recorded in the database since 1996, around 615,000 are active patients as of 2025. Pseudonymised patient data, including information on diagnoses, medication use, laboratory results, and treatment, are extracted from the electronic medical records of the ANHA-affiliated GPs every three months.
Study design
Registry
Number of participants at first data collection
1,450,000 (patients as of 2025)
Recruitment is ongoing
Age at first data collection
Varied (patients)
Participant year of birth
Varied (patients)
Participant sex
All
Representative sample at baseline?
No
Sample features
Country
Year of first data collection
1996
Primary Institutions
Amsterdam University Medical Center (Amsterdam UMC)
Links
Profile paper DOI
Not available
Funders
Amsterdam University Medical Center (Amsterdam UMC)
Amsterdamse Huisartsen Alliantie (Amsterdam GP Alliance)
The Netherlands Organisation for Health Research and Development (ZonMw)
Ongoing?
Yes
Data types collected
- Physical or biological assessment (e.g. blood, saliva, gait, grip strength, anthropometry)
- Secondary data
- None
- None
- Healthcare data
Engagement
Keywords
Consortia and dataset groups
