REN and polycystic ovary syndrome: As for the subgroup analysis, “drugs for functional gastrointestinal disorders”, “drugs used in diabetes”, “beta‐blocking agents”, “agents acting on the renin‐angiotensin system”, “antibiotics and chemotherapeutics for dermatological use”, “thyroid therapy”, and “analgesics” were more commonly used among women with PCOS compared with controls before and after adjustments, except for “beta‐blocking agents” (Table S1).