Antibiotics v placebo in patients having appendectomy*
| Weighted events rate | |||||
|---|---|---|---|---|---|
| Outcomes | Number of comparisons (n) | Antibiotics | Placebo | RRR (95% CI) | NNT (CI) |
| *Abbreviations defined in glossary; RRR, NNT, and CI calculated from data in article. A fixed effects model was used for all analyses. Follow up data were not consistently reported in individual trials. | |||||
| Wound infection | 71 (8643) | 5.3% | 14.6% | 60% (55 to 65) | 11 (10 to 13) |
| Intra-abdominal abscess | 20 (4468) | 0.7% | 1.7% | 51% (18 to 70) | 100 (59 to 334) |