Alendronate v placebo at year 2 in men with osteoporosis‡
| Outcome | Alendronate | Placebo | RRR (95% CI) | NNT (CI) |
|---|---|---|---|---|
| ‡Abbreviations defined in glossary; RRR, NNT, and CI calculated from data in article. | ||||
| Vertebral fractures | 1% | 7% | 89% (35 to 98) | 16 (7 to 56) |