Meta-analysis of laparoscopic vs open liver resection for hepatocellular carcinoma

Figure 1 Flow diagram depicting the process of identification and inclusion of selected studies.

Figure 2 Forest plots demonstrating operative, postoperative and oncologic outcomes. A: Forest plots illustrating results of operative outcomes in the form of meta-analysis comparing laparoscopic vs open resection for hepatocellular carcinoma (high-quality studies only); B: Forest plots illustrating results of postoperative outcomes in the form of meta-analysis comparing laparoscopic vs open resection for hepatocellular carcinoma (high-quality studies only); C: Forest plots illustrating results of oncologic outcomes in the form of meta-analysis comparing laparoscopic vs open resection for hepatocellular carcinoma (high quality studies only). Pooled weighted mean difference or odds ratio with 95%CI was calculated using the fixed-effects or random effects model. IV: Iverse variance; M-H: Mantel-Haenszel.

Figure 3 Funnel plot to investigate publication bias. The laparoscopic vs the open group: A funnel plot showing the operation time, hospital stay and tumor recurrence. OR: Odds ratio; MD: Mean difference.