Hormone replacement therapy (HRT) v placebo in postmenopausal women with established coronary artery disease†

Outcomes at mean 4.1 years HRTPlaceboRRI (95% CI)NNH (CI)
†Abbreviations defined in glossary; RRI, NNH, and CI calculated from data in article.
Any venous thromboembolic event2.5%0.9%162% (40 to 390)66 (39 to 172)
Deep venous thrombosis1.8%0.7%178% (33 to 484)86 (48 to 279)
Non-idiopathic venous thromboembolic event1.8%0.7%151% (23 to 412)92 (50 to 372)
Pulmonary embolism0.8%0.3%176% (−7 to 718)Not significant
Idiopathic venous thromboembolic event0.7%0.2%201% (−12 to 925)Not significant