HT (conjugated equine oestrogen [CEO] with or without medroxyprogesterone acetate [MPA]) after menopause*

Outcomes at 1 yearTrialHTPlaceboRRI (95% CI)NNH (CI)
*HT  =  hormone therapy. Other abbreviations defined in glossary; RRI, NNH, and CI calculated from data in article.
Incident stress urinary incontinence (UI)CEO + MPA16%8.7%87% (61 to 118)14 (10 to 19)
CEO alone17%8.5%115% (77 to 162)11 (8 to 16)
Incident urge UICEO + MPA11.4%10.8%15% (−1 to 34)Not significant
CEO alone14%12%32% (10 to 58)27 (15 to 84)
Relative risk (CI)
Worsened amount of UICEO + MPA1.20 (1.06 to 1.36)
CEO alone1.59 (1.39 to 1.82)
Worsened frequency of UICEO + MPA1.38 (1.28 to 1.49)
CEO alone1.47 (1.35 to 1.61)