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| No. of Patients With an SSI (%) | Absolute Risk Difference, % (95% CI) |
||
|---|---|---|---|
| Cefazolin Group (n = 228) |
Saline Group (n = 242) |
||
| SSIa | 30 (13.2) | 36 (14.9) | −1.7 (−8.0 to 4.6) |
| Superficial | 29 (12.7) | 29 (12.0) | 0.7 (−5.3 to 6.8) |
| Deep | 1 (0.4) | 7 (2.9) | −2.5 (−5.7 to 0.4) |
Primary outcome measure.
