Effect of preoperative biliary drainage on malignant obstructive jaundice: A meta-analysis

Figure 2 Incidence of postoperative pancreatic leakage (A), postoperative bile leakage (B), postoperative incision infection (C), postoperative abdominal abscess (D), and postoperative delayed gastric emptying (E). Estimates of preoperative biliary drainage (PBD) effect in each study are presented on a log scale along with the 95% CI. The weight of each study is reflected by the size of square. The open diamond represents the global estimate of the PBD effect along with the 95% CI (random-effects model).