Prevalence of surgical site infection and risk factors in patients after knee surgery: A systematic review and meta-analysis.

4.5 Prevalence of SSI based on gender As depicted in Figure 4 , the odds ratio for the prevalence of SSI in men was greater than that in women; however, this difference did not reach statistical significance (OR: 1.254; 95% CI: 0.726 to 2.166; Z = 0.694; p = 0.487). 4.6 Prevalence of SSI in other risk factors As presented in Table 3 , the combined prevalence of SSI in patients with DM, as reported in six studies, was 5.1% (95% CI: 1.7% to 14.5%; I 2 = 79.054%; p < 0.001).

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