Overall positive culture results
| Time | Group; no. (%) of patients | Adjusted RR* (95% CI) | |
|---|---|---|---|
| ChloraPrep | DuraPrep | ||
| Before skin preparation | 50 (93) | 48 (94) | — |
| After skin preparation | 19 (35) | 7 (14) | 0.40 (0.18–0.85) |
| After closure | 19 (35) | 15 (29) | 0.83 (0.48–1.44) |
CI = confidence interval; RR = relative risk.
↵* Adjusted for patient age, sex, body mass index, surgery duration and prepreparation culture status.