Vitamin K v placebo for lowering the international normalized ratio (INR) to the therapeutic range 1 day after the intervention‡
| Outcome | Vitamin K | Placebo | RBI (95% CI) | NNT (CI) |
|---|---|---|---|---|
| ‡Abbreviations defined in glossary; RBI, NNT, and CI calculated from data in article. | ||||
| INR value between 1.8 and 3.2 | 56% | 20% | 272% (49 to 421) | 3 (2 to 7) |