Outcomes of robotic liver resection and intraoperative radiofrequency ablation for hepatocellular carcinoma in posterior segments VII and VIII

Figure 5 Subgroup analysis of recurrence-free survival. A and B: Within the robotic liver resection group in the de novo group prior to propensity score matching. Patients were stratified into high-risk and low-risk groups based on platelet count and prothrombin time - variables identified as significantly associated with survival outcomes; C-E: Within the robotic intraoperative radiofrequency ablation group in first recurrence group after propensity score matching. Patients were stratified into high-risk and low-risk groups based on platelet count, operation time and complication or not - variables identified as significantly associated with survival outcomes. RFS: Recurrence-free survival; R-LR: Robotic liver resection; RIO-RFA: Robotic intraoperative radiofrequency ablation; OP: Operative procedure.