Fig.Ā 4From: Does transanal drainage tubes placement have an impact on the incidence of anastomotic leakage after rectal cancer surgery? a systematic review and meta-analysisA random-effect model was used to analyze the RRs of 4 articles to compare the association between transanal drainage tubes placement and the occurrence of Grade C anastomotic leakage after rectal cancer surgery. RRā=ā0.52, 95%CI 0.16ā1.77, Pā=ā0.30Back to article page