Finasteride v placebo in healthy men at mean 7 years§
| Outcomes | Finasteride | Placebo | RRR (95% CI) | NNT (CI) |
|---|---|---|---|---|
| §Abbreviations defined in glossary; RRR, RRI, NNT, NNH, and CI calculated from data in article. | ||||
| Prostate cancer | 18% | 24% | 25% (19 to 31) | 17 (13 to 23) |
| Urinary urgency | 13% | 16% | 17% (11 to 23) | 37 (28 to 59) |
| Urinary retention | 4.2% | 6.3% | 33% (24 to 41) | 48 (37 to 69) |
| RRI (CI) | NNH (CI) | |||
| High grade tumour (Gleason score ≥7) | 6.4% | 5.1% | 27% (7.3 to 50) | 74 (43 to 248) |
| Erectile dysfunction | 67% | 61% | 9.6% (7.2 to 12) | 18 (14 to 23) |
| Loss of libido | 65% | 60% | 9.8% (7.4 to 12) | 18 (14 to 23) |