Comparison | Weighted event rates | RBI (95% CI) | NNT (CI) |
---|---|---|---|
*GTN = glyceryl trinitrate; RBR = relative benefit reduction. Other abbreviations defined in glossary. Weighted event rates, RBI, RBR, NNT, NNH, and CI calculated from data in article using a random effects model. | |||
GTN v placebo | 55% v 33% | 78% (7 to 198) | 5 (3 to 51) |
GTN v placebo (excluding 2 trials with low placebo rates) | 54% v 40% | 35% (−15 to 115) | Not significant |
RBR (CI) | NNH (CI) | ||
Medical therapy (GTN or botox) v surgery | 50% v 86% | 42% (21 to 58) | 3 (3 to 5) |