Carvedilol v placebo for severe chronic heart failure‡
| Outcomes at 1 year | Carvedilol | Placebo | RRR (95% CI) | NNT (CI) |
|---|---|---|---|---|
| ‡Abbreviations defined in glossary; NNT and CI calculated from data in article. | ||||
| Risk for death | 11% | 19% | 35% (19 to 48) | 15 (10 to 25) |
| Combined risk for death or hospitalisation | 42% | 53% | 24% (13 to 33) | 10 (7 to 15) |