Table 1.
Crude and adjusted incidence rate ratios by various exposures.
| Exposure | Number of cases | Person-years of exposure | Crude incidence rate per 100 000 person-years | Crude incidence rate ratio (95% CI) | Adjusted incidence rate ratio (95% CI)* |
|---|---|---|---|---|---|
| Normolipidaemic nonuse | 59 | 324 376 | 18.2 | Reference | Reference |
| Current/recent statin use | 3 | 14 184 | 21.2 | 1.2 (0.2, 3.6) | 0.8 (0.3, 2.7) |
| Past statin use | 2 | 3481 | 57.5 | 3.2 (0.4, 11.9) | 2.4 (0.6, 10.0) |
| Current/recent other lipid-lowering drug use | 0 | 12 563 | 0 | 0 (0, 1.7) | – |
| Past other lipid-lowering drug use | 2 | 5099 | 39.2 | 2.2 (0.3, 8.1) | 1.8 (0.4, 7.4) |
| Mixed use | 0 | 912 | 0 | 0 (0, 23.0) | – |
| Hyperlipidaemic nonuse | 6 | 32 561 | 18.4 | 1.0 (0.4, 2.3) | 0.9 (0.4, 2.0) |
*
Adjusted for age, calendar year, and sex.