Table 1. Demographic characteristics of adults with and without atrial fibrillation.
| Category | Adults with atrial fibrillation, n (%) (N=34,338) |
Adults without atrial fibrillation, n (%) (N=907,739) |
Percentage difference (95%CI) |
|---|---|---|---|
| Sex* | |||
| Male | 19418 (56.5) | 445707 (49.1) | 7.4 (6.8 to 8.1) |
| Female | 14919 (43.4) | 462026 (50.9) | -7.5 (-8.1 to -6.8) |
| Age group | |||
| 18-24 | 35 (0.1) | 81322 (9.0) | -8.9 (-8.9 to -8.8) |
| 25-44 | 641 (1.9) | 290866 (32.0) | -30.1 (-30.4 to -30.0) |
| 45-64 | 5135 (15.0) | 330333 (36.4) | -21.4 (-21.9 to -21.0) |
| 65-84 | 20532 (59.8) | 181956 (20.0) | 39.8 (39.2 to 40.3) |
| 85 and over | 7995 (23.3) | 23262 (26.0) | 20.7 (20.2 to 21.2) |
| IMD | |||
| Q1 (least deprived) | 8564 (24.9) | 230385 (25.4) | -0.5 (-1.0 to 0.1) |
| Q2 | 7754 (22.6) | 187126 (20.6) | 2.0 (1.4 to 2.5) |
| Q3 | 7485 (21.8) | 182956 (20.2) | 1.6 (1.2 to 2.1) |
| Q4 | 5948 (17.3) | 165136 (18.2) | -0.9 (-1.4 to -0.4) |
| Q5 (most deprived) | 4587 (13.4) | 142136 (15.7) | -2.3 (-2.7 to -1.9) |
*
One adult with atrial fibrillation and six adults without atrial fibrillation had an indeterminate sex; IMD= Index of Multiple Deprivation (in quintiles of the English population).