Outcome | Comparisons | Event rates | RRR (95% CI) | NNT (CI) |
---|---|---|---|---|
‡Abbreviations defined in glossary; RRR, NNT, and CI calculated from data in article. | ||||
≥1 colorectal adenoma detected | Aspirin, 81 mg v placebo | 38% v 47% | 19% (3.8 to 32) | 12 (7 to 60) |
Aspirin, 325 mg v placebo | 45% v 47% | 4.3% (−12 to 18) | Not significant |