Literatures on the distribution of bacteria in perianal abscess from different regions and at different times were systematically analyzed, and the distribution of pathogens in perianal abscess was meta-analyzed using STATA 12.0 statistical software. The results showed that the detection rate of Escherichia coli was 0.64 (95% CI, 0.54-0.74), Klebsiella pneumoniae was 0.13 (95% CI, 0.12-0.15), and Staphylococcus was 0.07 (95% CI, 0.04-0.10).
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