Incidence rates and corresponding incidence rate ratios of arterial and venous thromboses during the time at risk (TAR) within 3, 6, and 12 months after an infection and 12+ months among patients who had had an infection, compared to the patients who had never had an infection.
| Events, n | Observation Time, yrs | Incidence Rate, %/yr | Incidence Rate Ratios Relative to TAR 12+ (95% CI) | Lower Limit | Upper Limit | |
|---|---|---|---|---|---|---|
| Arterial thromboses | ||||||
| Never infected | 49 | 3387.8 | 1.45 | 0.58 | 0.42 | 0.83 |
| TAR 0–3 mo | 3 | 72.2 | 4.16 | 1.68 | 0.35 | 4.90 |
| TAR 3–6 mo | 4 | 48.5 | 8.25 | 3.33 | 0.91 | 8.52 |
| TAR 6–12 mo | 5 | 101.1 | 4.95 | 2.00 | 0.65 | 4.66 |
| TAR 0–12 mo | 12 | 221.8 | 5.41 | 2.18 | 1.13 | 3.81 |
| TAR 12+ mo | 37 | 1492.8 | 2.48 | |||
| Venous thromboses | ||||||
| Never infected | 32 | 3387.8 | 0.94 | 0.67 | 0.44 | 1.09 |
| TAR 0–3 mo | 5 | 72.2 | 6.93 | 4.93 | 1.60 | 11.49 |
| TAR 3–6 mo | 2 | 48.5 | 4.12 | 2.93 | 0.36 | 10.59 |
| TAR 6–12 mo | 1 | 101.1 | 0.99 | 0.70 | 0.02 | 3.92 |
| TAR 0–12 mo | 8 | 221.8 | 3.61 | 2.56 | 1.11 | 5.05 |
| TAR 12+ mo | 21 | 1492.8 | 1.41 |