Table 1.
Availability of primary care data for research in different countries
| Country | National or regional | Primary and ambulatory care data available for research linkages |
|---|---|---|
| UK | National | CPRD, access through Academic Health Sciences Networks. See Table 2 |
| Sweden | National | Primary care is organized regionally; national initiatives in SwedeHeart6 and the National Registry of Secondary Prevention (SEPHIA) |
| Denmark | National | Register of Medicinal Product Statistics7,8 |
| Canada | Regional | Ontario, Institute for Clinical Evaluative Sciences9 |
| Ontario Health Insurance Plan Physician claims database | ||
| USA | National | Medicare (for people aged ≥65 years) |
| National | Million Veteran Programme | |
| Regional | Mayo Clinic10 | |
| Rochester Epidemiology Project, Olmsted County | ||
| Regional | Kaiser Permanente California Research Program on Genes, Environment, and Health11 | |
| Regional | Intermountain Healthcare12 | |
| South Korea | National | National health insurance claims database from the Health Insurance Review & Assessment Service13 |