Risk ratios of arterial and venous thromboses (occurring within 12 months after an infection) by infections, including subsets adjusted for age, sex, and presence of antiphospholipid antibodies (aPL), at some time during the observation period, in 571 patients with systemic lupus erythematosus followed for a mean of 8.9 years.
| Arterial Thromboses, RR (95% CI) | Venous Thromboses, RR (95% CI) | |
|---|---|---|
| Age, per decade | 1.4 (1.2–1.6) | 1.0 (0.86–1.2) |
| Male sex | 2.2 (1.4–3.7) | 3.5 (2.0–6.2) |
| aPL ever | 1.7 (1.1–2.6) | 1.8 (1.1–3.0) |
| Any infection | 2.5 (1.4–4.6) | 2.8 (1.3–5.9) |
| Subsets of infections* | ||
| Respiratory | 2.4 (1.0–5.9) | 5.4 (2.3–13) |
| Cutaneous zoster | 2.6 (0.64–11) | 0 (not calculated)** |
| Other | 2.1 (0.83–5.1) | 1.3 (0.31–5.2) |