Dataset characteristics
| Total population, n | 131 419 |
| Mean age, years (SD) | 65 (13) |
| Ethnicity, n (%) | |
| White | 112 194 (85) |
| South Asian | 4586 (4) |
| Black/African-Caribbean | 2760 (2) |
| Not stated | 10 234 (8) |
| Other | 1645 (1) |
| Sex, n (%) | |
| Male | 61 146 (47) |
| Female | 70 273 (53) |
| Medication class, n (%) | |
| CCB | 41 372 (32) |
| ACEi | 34 497 (26) |
| ARB | 17 415 (13) |
| Beta-blocker | 16 211 (12) |
| Thiazide diuretic | 15 487 (12) |
| Alpha-blocker | 5264 (4) |
| Other | 1173 (1) |
| Proportion of pharmacies, by location, contributing to dataset, % | |
| North East | 6 |
| North West | 16 |
| Yorkshire and the Humber | 10 |
| East Midlands | 9 |
| West Midlands | 10 |
| East Anglia | 5 |
| Greater London | 15 |
| South East | 15 |
| South West | 14 |
ACEi = angiotensin-converting enzyme inhibitor. ARB = angiotensin II receptor blocker. CCB = calcium channel blocker.