Additional file 2 of Comparative study on left-sided versus right-sided hepatectomy for resectable peri-hilar cholangiocarcinoma: a systematic review and meta-analysis

Additional file 2: Fig. S1. Forest plot for the 1-year, 3-year and 5-year survival rates of patients with Hilar cholangiocarcinoma (HCCA) between left-side hepatectomy (LH) and right-side hepatectomy (RH). A 1-year survival rate. B 3-year survival rate. C 5-year survival rate. Fig. S2. Forest plot for the 1-year, 3-year and 5-year disease-free survival rate of patients with Hilar cholangiocarcinoma (HCCA) between left-side hepatectomy (LH) and right-side hepatectomy (RH). A 1-year disease-free survival rate. B 3-year disease-free survival rate. C 5-year disease-free survival rate. Fig. S3. Forest plots of A) preoperative total bilirubin levels, B) preoperative biliary drainage and C) portal vein embolization (PVE) between left-side hepatectomy (LH) and right-side hepatectomy (RH). Fig. S4. Forest plots of A) operation time, B) postoperative bile leakage, and C) intraoperative transfusion rates between left-side hepatectomy (LH) and right-side hepatectomy (RH). Fig. S5. Forest plots of A) overall postoperative morbidity, B) major postoperative morbidity, C) post-hepatectomy liver failure (PHLF), and postoperative bile leakage between left-side hepatectomy (LH) and right-side hepatectomy (RH). Fig. S6. Forest plots of A) overall postoperative mortality and B) in-hospital mortality (or perioperative motility) between left-side hepatectomy (LH) and right-side hepatectomy (RH). Fig. S7. Funnel plot of A) overall survival and B) R0 resection.