Table 2 Atrial fibrillation per 1000 patient years by sex and age categories at baseline with 95% confidence intervals estimated by using Poisson regression
Atrial fibrillation, any position | All | Men | Women | |||
|---|---|---|---|---|---|---|
Type 2 diabetes | Controls | Type 2 diabetes | Controls | Type 2 diabetes | Controls | |
All | ||||||
 N | 421,855 | 2,131,223 | 233,548 | 1,155,283 | 188,307 | 975,940 |
 n (%) | 37,590 (8.9%) | 149,231 (7.0%) | 21,808 (9.3%) | 86,178 (7.5%) | 15,782 (8.4%) | 63,053 (6.5%) |
 Cases per 1000 years (95% CI) | 15.99 (15.83–16.15) | 11.89 (11.83–11.95) | 16.95 (16.73–17.18) | 12.66 (12.58–12.75) | 14.83 (14.60–15.07) | 10.97 (10.88–11.05) |
 Unadjusted IRR (95% CI) | 1.35 (1.33–1.36) |  | 1.34 (1.32–1.36) |  | 1.35 (1.33–1.38) |  |
< 55 years | ||||||
 N | 83,356 | 424,662 | 50,094 | 255,240 | 33,262 | 169,422 |
 n (%) | 1569 (1.9%) | 4356 (1.0%) | 1175 (2.3%) | 3478 (1.4%) | 394 (1.2%) | 878 (0.5%) |
 Cases per 1000 years (95% CI) | 3.18 (3.02–3.34) | 1.67 (1.62–1.72) | 3.96 (3.74–4.20) | 2.23 (2.15–2.30) | 1.99 (1.80–2.20) | 0.84 (0.79–0.90) |
 Unadjusted IRR (95% CI) | 1.90 (1.79–2.01) |  | 1.78 (1.67–1.90) |  | 2.36 (2.10–2.66) |  |
55–64 years |  |  |  |  |  |  |
 N | 118,424 | 606,294 | 72,337 | 371,480 | 46,087 | 234,814 |
 n (%) | 6819 (5.8%) | 22,332 (3.7%) | 4901 (6.8%) | 16,729 (4.5%) | 1918 (4.2%) | 5603 (2.4%) |
 Cases per 1000 years (95% CI) | 9.50 (9.28–9.73) | 5.84 (5.77–5.92) | 11.30 (10.99–11.62) | 7.20 (7.09–7.31) | 6.75 (6.46–7.06) | 3.74 (3.64–3.84) |
 Unadjusted IRR (95% CI) | 1.63 (1.58–1.67) |  | 1.57 (1.52–1.62) |  | 1.81 (1.71–1.90) |  |
65–74 years | ||||||
 N | 122,848 | 623,184 | 67,666 | 335,590 | 55,182 | 287,594 |
 n (%) | 12,973 (10.6%) | 50,919 (8.2%) | 8011 (11.8%) | 32,223 (9.6%) | 4962 (9.0%) | 18,696 (6.5%) |
 Cases per 1000 years (95% CI) | 18.99 (18.67–19.32) | 13.75 (13.63–13.87) | 22.10 (21.62–22.59) | 16.54 (16.36–16.72) | 15.47 (15.05–15.91) | 10.65 (10.50–10.80) |
 Unadjusted IRR (95% CI) | 1.38 (1.36–1.41) |  | 1.34 (1.30–1.37) |  | 1.45 (1.41–1.50) |  |
75 + years | ||||||
 N | 97,227 | 477,083 | 43,451 | 192,973 | 53,776 | 284,110 |
 n (%) | 16,229 (16.7%) | 71,624 (15.0%) | 7721 (17.8%) | 33,748 (17.5%) | 8508 (15.8%) | 37,876 (13.3%) |
 Cases per 1000 years (95% CI) | 35.62 (35.08–36.17) | 29.54 (29.33–29.76) | 39.76 38.88–40.66) | 34.82 (34.45–35.20) | 32.54 (31.86–33.24) | 26.02 (25.76–26.29) |
 Unadjusted IRR (95% CI) | 1.21 (1.19–1.23) |  | 1.14 (1.11–1.17) |  | 1.25 (1.22–1.28) |  |