Table 2.
Incidence rates and 95% CIs, observation time, and number of events according to exposure status
| Number of events | Observation time (person years) | Incidence rate per 100 person years (95% CI) | |
|---|---|---|---|
| Non-exposed | 164.942 | 7.167.515 | 2.30 (2.29 to 2.31) |
| Nitrates (days) | |||
| 0–14 | 91 | 2.690 | 3.38 (2.75 to 4.15) |
| 15–30 | 62 | 2.736 | 2.27 (1.77 to 2.91) |
| 31–90 | 274 | 7.819 | 3.50 (3.11 to 3.94) |
| 91–180 | 294 | 8.973 | 3.27 (2.92 to 3.67) |
| >180 | 4.155 | 120.238 | 3.46 (3.35 to 3.56) |
| Digoxin (days) | |||
| 0–14 | 156 | 3.739 | 4.17 (3.57 to 4.88) |
| 15–30 | 188 | 4.106 | 4.58 (3.97 to 5.28) |
| 31–90 | 495 | 12.583 | 3.93 (3.08 to 3.67) |
| 91–180 | 505 | 15.013 | 3.36 (3.08 to 3.67) |
| >180 | 5.792 | 189.066 | 3.06 (2.98 to 3.14) |
| Thiazides (days) | |||
| 0–14 | 446 | 12.518 | 3.56 (3.25 to 3.91) |
| 15–30 | 518 | 13.414 | 3.86 (3.54 to 4.21) |
| 31–90 | 1.502 | 44.958 | 3.34 (3.18 to 3.51) |
| 91–180 | 1.276 | 46.335 | 2.75 (2.61 to 2.91) |
| >180 | 18.057 | 687.456 | 2.63 (2.59 to 2.67) |
| ACE inhibitors (days) | |||
| 0–14 | 273 | 11.821 | 2.31 (2.05 to 2.60) |
| 15–30 | 330 | 13.092 | 2.52 (2.26 to 2.81) |
| 31–90 | 980 | 41.447 | 2.36 (2.22 to 2.52) |
| 91–180 | 1.124 | 49.915 | 2.25 (2.12 to 2.39) |
| >180 | 15.910 | 640.066 | 2.49 (2.45 to 2.52) |
| Loop diuretics (days) | |||
| 0–14 | 615 | 11.590 | 5.31 (4.90 to 5.74) |
| 15–30 | 570 | 11.883 | 4.80 (4.42 to 5.21) |
| 31–90 | 1.329 | 30.281 | 4.39 (4.16 to 4.63) |
| 91–180 | 1.584 | 36.189 | 4.38 (4.17 to 4.60) |
| >180 | 18.846 | 475.456 | 3.96 (3.91 to 4.02) |
| Calcium antagonists (days) | |||
| 0–14 | 249 | 10.532 | 2.36 (2.09 to 2.68) |
| 15–30 | 315 | 11.900 | 2.64 (2.37 to 2.96) |
| 31–90 | 926 | 39.813 | 2.33 (2.18 to 2.48) |
| 91–180 | 1.111 | 50.428 | 2.20 (2.08 to 2.34) |
| >180 | 16.691 | 663.196 | 2.52 (2.48 to 2.56) |
| β-Blockers (days) | |||
| 0–14 | 260 | 10.843 | 2.39 (2.12 to 2.71) |
| 15–30 | 304 | 11.932 | 2.55 (2.28 to 2.85) |
| 31–90 | 974 | 37.562 | 2.59 (2.44 to 2.76) |
| 91–180 | 1.208 | 47.672 | 2.53 (2.40 to 2.68) |
| >180 | 19.194 | 761.936 | 2.52 (2.48 to 2.56) |
| Statins (days) | |||
| 0–14 | 224 | 12.342 | 1.81 (1.59 to 2.07) |
| 15–30 | 267 | 14.033 | 1.90 (1.69 to 2.15) |
| 31–90 | 877 | 48.745 | 1.80 (1.68 to 1.92) |
| 91–180 | 1.168 | 62.608 | 1.87 (1.76 to 1.98) |
| >180 | 22.858 | 1.100.165 | 2.08 (2.05 to 2.10) |
| Angiotensin receptor antagonists (days) | |||
| 0–14 | 131 | 5.897 | 2.22 (1.87 to 2.64) |
| 15–30 | 129 | 6.185 | 2.09 (1.75 to 2.48) |
| 31–90 | 379 | 19.938 | 1.90 (1.72 to 2.10) |
| 91–180 | 556 | 26.130 | 2.12 (1.96 to 2.31) |
| >180 | 7.636 | 333.944 | 2.29 (2.24 to 2.34) |