Outcomes at mean of 3.6 years | Comparison | Event rates | RRR (95% CI) | NNT (CI) |
---|---|---|---|---|
*Combined endpoint = cardiovascular death, non-fatal myocardial infarction, and non-fatal stroke. Abbreviations defined in glossary; RRR, RRI, NNT, NNH, and CI calculated from data in article. | ||||
Combined endpoint | Aspirin v no aspirin | 2.0% v 2.8% | 29% (−4 to 52) | Not significant |
Cardiovascular death | Aspirin v no aspirin | 0.8% v 1.4% | 44% (1 to 69) | 166 (81 to 62500) |
Total cardiovascular events | Aspirin v no aspirin | 6.3% v 8.2% | 23% (5 to 38) | 53 (30 to 258) |
RRI (CI) | NNH | |||
Combined endpoint | Vitamin E v no vitamin E | 2.5% v 2.3% | 7% (−56 to 26) | Not significant |