Risk of venous thromboembolism associated with PCOS in women taking the combined oral contraceptive pill
| Variable | Cox proportional hazards models | Relative risk regression |
|---|---|---|
| PCOS claim | 2.14 (1.41–3.24) | 2.12 (1.40–3.21) |
| Composite PCOS definition* | 2.24 (1.62–3.10) | 2.23 (1.61–3.08) |
| PCOS symptoms and treatment | ||
| Anovulation | 1.72 (0.75–3.98) | 1.70 (0.75–3.89) |
| Hirsutism | 2.49 (1.35–4.59) | 2.43 (1.30–4.56) |
| Spironolactone | 1.89 (1.15–3.10) | 1.86 (1.14–3.03) |
Note: PCOS = polycystic ovary syndrome.
↵* Claims for PCOS, anovulation, hirsutism, spironolactone treatment, or PCOS-related procedures.