Percutaneous biliary stent combined with brachytherapy using 125I seeds for treatment of unresectable malignant obstructive jaundice: A meta-analysis

Figure 1 Flow diagram outlining methods of selecting eligible studies.

Figure 2 Forest plot (whole studies). A: Hazard ratios for stent patency; B: Hazard ratios for overall survival.

Figure 3 Subgroup analysis of stent patency based on irradiation stent type.

Figure 4 Forest plot (subgroup, divided by randomized controlled trials and retrospective studies). A: Randomized controlled trial (RCT)-stent patency; B: Retrospective study-stent patency; C: RCT-overall survival; D: Retrospective study-overall survival.

Figure 5 Forest plot comparing rate of complications.

Figure 6 Forest plot comparing mean difference in posttreatment reductions in serum indices.