Table 3:

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.