Local warming (LW), systemic warming (SW), and LW or SW v standard preoperative care (SPC) for reducing wound infection after clean surgery†
| Outcomes at 6 weeks | Comparison | Event rates | RRR (95% CI) | NNT (CI) |
|---|---|---|---|---|
| Wound infection | LW v SPC | 4% v 14% | 73% (34 to 90) | 10 (6 to 28) |
| SW v SPC | 6% v 14% | 58% (9 to 81) | 13 (7 to 101) | |
| LW or SW v SPC | 5% v 14% | 66% (33 to 82) | 12 (7 to 30) | |
| Prescribed postoperative antibiotics | LW v SPC | 7% v 16% | 59% (16 to 80) | 11 (6 to 52) |
| SW v SPC | 6% v 16% | 59% (16 to 80) | 11 (6 to 50) | |
| LW or SW v SPC | 6% v 16% | 59% (26 to 77) | 11 (6 to 32) |
| RBI (95% CI) | ||||
|---|---|---|---|---|
| †Abbreviations defined in glossary; RRR, RBI, NNT, and CI calculated from data in article. | ||||
| ASEPSIS score 0–10 | LW v SPC | 94% v 83% | 14% (5 to 25) | 9 (6 to 25) |
| SW v SPC | 93% v 83% | 12% (3 to 24) | 10 (6 to 41) | |
| LW or SW v SPC | 94% v 83% | 13% (5 to 24) | 10 (6 to 23) | |
