Impervious wound edge protector v no protector for wound infection rates at up to 30 days after abdominal surgery§
| Wound status | Impervious wound edge protector | No protector | RRR (95% CI) | NNT (CI) |
|---|---|---|---|---|
| §Abbreviations defined in glossary; RRR, NNT, and CI calculated from data in article. | ||||
| All wounds | 14% | 30% | 54%(30 to 71) | 7(4 to 13) |
| Clean contaminated wounds | 7% | 13% | 45%(−16 to 74) | Not significant |
| Contaminated wounds | 24% | 67% | 64%(33 to 81) | 3(2 to 6) |
| Dirty wounds | 75% | 94% | 21%(−9 to 57) | Not significant |