Demographics
| Variable | UK country | ||||
|---|---|---|---|---|---|
| All | England | Northern Ireland | Scotland | Wales | |
| Gender counts | |||||
| Male | 2 312 378 (47.97%) | 1 826 391 (47.89%) | 55 350 (47.69%) | 275 158 (48.59%) | 155 479 (47.87%) |
| Female | 2 508 507 (52.03%) | 1 987 390 (52.11%) | 60 724 (52.31%) | 291 089 (51.41%) | 169 304 (52.13%) |
| Mean age at cohort entry (years) | 40.2 | 40.4 | 39.0 | 40.1 | 38.7 |
| Townsend quintile counts | |||||
| 1 (least deprived) | 1 121 219 (23.26%) | 966 693 (25.35%) | 25 402 (21.88%) | 68 734 (12.14%) | 60 390 (18.59%) |
| 2 | 993 426 (20.61%) | 776 252 (20.35%) | 21 946 (18.91%) | 129 204 (22.82%) | 66 024 (20.33%) |
| 3 | 1 024 050 (21.24%) | 800 858 (21.00%) | 24 364 (20.99%) | 119 206 (21.05%) | 79 622 (24.52%) |
| 4 | 980 006 (20.33%) | 756 345 (19.83%) | 18 535 (15.97%) | 125 519 (22.17%) | 79 607 (24.51%) |
| 5 (most deprived) | 702 184 (14.57%) | 513 633 (13.47%) | 25 827 (22.25%) | 123 584 (21.83%) | 39 140 (12.05%) |
| Total number of patients | 4 820 885 | ||||