Relative risk of myocardial infarction after an episode of sexual activity
| Hazard period (min) |
Number of exposed cases (n=659) |
Relative risk (95% CI) |
Number of exposed cases among those with no premonitory symptoms (n=399) |
Relative risk (95% CI) |
| 0–60 | 3 | 1.4 (0.4 to 4.2) | 3 | 2.1 (0.7 to 6.5) |
| 60–120 | 2 | 0.9 (0.2 to 3.7) | 2 | 1.4 (0.3 to 5.8) |
| 120–180 | 0 | 0 | ||
| 180–240 | 1 | 0.5 (0.1 to 3.3) | 1 | 0.7 (0.1 to 5.1) |
| 0–120 | 5 | 1.1 (0.5 to 2.8) | 5 | 1.8 (0.7 to 4.3) |
| 0–180 | 5 | 0.7 (0.3 to 1.8) | 5 | 1.1 (0.5 to 2.8) |
| 0–240 | 6 | 0.7 (0.3 to 1.5) | 6 | 1.0 (0.5 to 2.3) |
CI, confidence interval.