Study population demographic characteristics by antithrombotic medication category
| Total n (%) | Any AT n (%) | AC only n (%) | AP only n (%) | AC and AP n (%) | No AT n (%) | |
| Individuals | 972 971 (100) | 856 336 (88) | 722 737 (74.3) | 70 498 (7.2) | 63 101 (6.5) | 116 635 (12) |
| Age, mean years (±SD) | 79 (±9.3) | 79 (±9) | 79 (±8.9) | 79 (±10) | 78 (±8.9) | 78 (±11) |
| 65–74 | 229 464 (23.6) | 198 956 (23.2) | 166 943 (23.1) | 16 018 (22.7) | 15 995 (25.3) | 30 508 (26.2) |
| ≥75 | 686 578 (70.6) | 610 497 (71.3) | 518 205 (71.7) | 49 702 (70.5) | 42 590 (67.5) | 76 081 (65.2) |
| Female | 449 279 (46.2) | 387 184 (45.2) | 338 477 (46.8) | 28 622 (40.6) | 20 085 (31.8) | 62 095 (53.2) |
| Ethnicity | ||||||
| White | 932 571 (95.8) | 822 292 (96) | 696 757 (96.4) | 66 237 (94) | 59 298 (94) | 110 279 (94.6) |
| Asian or Asian British | 20 557 (2.1) | 17 699 (2.1) | 12 797 (1.8) | 2536 (3.6) | 2366 (3.7) | 2858 (2.5) |
| Black or black British | 9418 (1) | 7658 (0.9) | 6200 (0.9) | 862 (1.2) | 596 (0.9) | 1760 (1.5) |
| Mixed | 3194 (0.3) | 2636 (0.3) | 2115 (0.3) | 274 (0.4) | 247 (0.4) | 558 (0.5) |
| Other ethnic groups | 7231 (0.7) | 6051 (0.7) | 4868 (0.7) | 589 (0.8) | 594 (0.9) | 1180 (1) |
| Geographical locations | ||||||
| South East | 172 714 (17.8) | 150 276 (17.5) | 127 207 (17.6) | 11 566 (16.4) | 11 503 (18.2) | 22 438 (19.2) |
| North West | 143 391 (14.7) | 127 860 (14.9) | 106 990 (14.8) | 10 705 (15.2) | 10 165 (16.1) | 15 531 (13.3) |
| East of England | 104 591 (10.7) | 92 676 (10.8) | 78 194 (10.8) | 7408 (10.5) | 7074 (11.2) | 11 915 (10.2) |
| South West | 108 250 (11.1) | 94 816 (11.1) | 80 009 (11.1) | 7863 (11.2) | 6944 (11) | 13 434 (11.5) |
| Yorkshire and the Humber | 108 285 (11.1) | 96 113 (11.2) | 81 386 (11.3) | 8405 (11.9) | 6322 (10) | 12 172 (10.4) |
| West Midlands | 111 062 (11.4) | 97 555 (11.4) | 83 383 (11.5) | 7836 (11.1) | 6336 (10) | 13 507 (11.6) |
| East Midlands | 83 786 (8.6) | 74 596 (8.7) | 63 978 (8.9) | 5773 (8.2) | 4845 (7.7) | 9190 (7.9) |
| London | 95 746 (9.8) | 81 824 (9.6) | 66 815 (9.2) | 7495 (10.6) | 7514 (11.9) | 13 922 (11.9) |
| North East | 45 146 (4.6) | 40 620 (4.7) | 34 775 (4.8) | 3447 (4.9) | 2398 (3.8) | 4526 (3.9) |
| IMD deciles | ||||||
| 1 (most deprived) | 78 061 (8) | 68 894 (8) | 56 583 (7.8) | 6490 (9.2) | 5821 (9.2) | 9167 (7.9) |
| 10 (least deprived) | 106 436 (10.9) | 93 984 (11) | 80 764 (11.2) | 6795 (9.6) | 6425 (10.2) | 12 452 (10.7) |
Percentages should be interpreted vertically for all variables, for example, proportion within category for variable, except for the first row showing percentage of individuals across AT medication categories.
AC, anticoagulants; AP, antiplatelets; AT, antithrombotics; IMD, Index of Multiple Deprivation.