Efficacy of transanal drainage tube in preventing anastomotic leakage after surgery for rectal cancer: A meta-analysis

Figure 4 Sensitivity analysis of anastomotic leakage rates between transanal drainage tube group and non-transanal drainage tube group in the meta-analysis. A: Analysis based on symptomatic leakage (grades B and C); B: Analysis based on leakage that required re-operation (grade C). Odds ratios (ORs) and 95% confidence intervals (CIs) are shown as circles and bars when each noted study is omitted. The dash lines show the pooled ORs and 95%CIs for all included studies.