Oseltamivir v placebo for influenza prophylaxis in frail older people‡
| Outcomes at 8 weeks | Oseltamivir | Placebo | RRR (95% CI) | NNT (CI) |
|---|---|---|---|---|
| ‡Abbreviations defined in glossary; NNT and CI calculated from data in article. | ||||
| Laboratory-confirmed clinical influenza | 0.4% | 4.4% | 92% (51 to 99) | 25 (14 to 56) |
| Influenza complications | 0.4% | 2.6% | 86% (13 to 98) | 45 (21 to 380) |