Antibiotic Prophylaxis of Surgical Site Infections in Cutaneous Surgery: A Prospective Observational Study.

The p -value showed a trend towards significance (< 0.1) without falling below the significance level of 0.05, which is explained by a loss of power resulting from a reduction in sample size of 94% compared with the main analysis.

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While the odds ratio for the occurrence of a surgical site infection when perioperative antibiotic prophylaxis was prescribed remained stable in the sensitivity analysis, the loss of power due to the exclusion of the majority of patients resulted in a trend toward significance in the sensitivity analysis without overcoming the hurdle of the significance level.

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