Statistical analysis and sample size
The synthetic meshes are considered safe at contaminated surgical site in terms of SSI [All analyses were primarily performed according to the intention-to-treat (ITT) principle. In the ITT analyses, the participants were analyzed in a randomized order. Additionally, per-protocol analyses were conducted to safeguard against the risk of falsely claiming non-inferiority. Between-group comparisons of continuous variables were performed by Student’s t-test or Mann-Whitney U-test, the latter if heterogeneous variances persisted. Categorical data was compared using χ