Meta-Analysis
Copyright ©The Author(s) 2023.
World J Clin Cases. Sep 26, 2023; 11(27): 6455-6475
Published online Sep 26, 2023. doi: 10.12998/wjcc.v11.i27.6455
Figure 1
Open in New Tab Full Size Figure Download Figure
Figure 1  Search strategy and identification of studies for the systematic review and meta-analysis.
Figure 2
Open in New Tab Full Size Figure Download Figure
Figure 2 Results of sensitivity analysis on major measured outcomes. A: Number of lymph nodes harvested; B: Operation time; C: Intraoperative blood loss; D: Postoperative length of stay; E: Postoperative complications; F: Postoperative complications (Clavien-Dindo 3-4); G: R0 resection rate; H: Overall survival; I: Tumor-free survival.
Figure 3
Open in New Tab Full Size Figure Download Figure
Figure 3 Forest plots of pooled hazard ratio for survival outcomes. A: Overall survival (OS); B: Tumor-free survival (TFS); C: OS after propensity score matching (PSM); D: TFS after PSM. LRR: Laparoscopic radical resection; ORR: Open radical resection; CI: Confidence interval.
Figure 4
Open in New Tab Full Size Figure Download Figure
Figure 4 Forest plots of pooled hazard ratio for survival outcomes in subgroup analysis. A: Overall survival (OS) in the T2/tumor-node-metastasis (TNM) Ⅱ subgroup; B: Tumor-free survival (TFS) in the T2/TNM Ⅱ subgroup; C: OS in the T1/TNM Ⅰ + T2/TNM Ⅱ subgroup; D: TFS in the T1/TNM Ⅰ + T2/TNM Ⅱ subgroup; E: OS in the T2/TNM Ⅱ + T3/TNM Ⅲ subgroup; F: TFS in the T2/TNM Ⅱ + T3/TNM Ⅲ subgroup. LRR: Laparoscopic radical resection; ORR: Open radical resection; CI: Confidence interval.
Figure 5
Open in New Tab Full Size Figure Download Figure
Figure 5 Forest plots of pooled odds ratio or weighted mean difference of short-term outcomes. A: Number of lymph nodes harvested; B: Operation time; C: Intraoperative blood loss; D: Postoperative length of stay; E: Postoperative complications; F: Postoperative complications (Clavien-Dindo 3-4); G: R0 margin rate; H: Early-stage rate (≤ T2/tumor-node-metastasis Ⅱ stage). LRR: Laparoscopic radical resection; ORR: Open radical resection; CI: Confidence interval.
Figure 6
Open in New Tab Full Size Figure Download Figure
Figure 6 Forest plots of pooled odds ratio or weighted mean difference of short-term outcomes after propensity score matching. A: Number of lymph nodes harvested; B: Operation time; C: Intraoperative blood loss; D: Postoperative length of stay; E: Postoperative complications; F: Postoperative complications (Clavien-Dindo 3-4). LRR: Laparoscopic radical resection; ORR: Open radical resection; CI: Confidence interval.