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

Table 9 Log-rank test results comparing recurrence-free survival between unstratified and risk-stratified subgroups of the robotic liver resection group in the de novo group prior to propensity score matching

	Platelet	Prothrombin time
Low risk vs unstratified R-LR	0.151	0.232
High risk vs unstratified R-LR	0.029	0.171
Low risk vs unstratified RIO-RFA	0.718	0.805
High risk vs unstratified RIO-RFA	0.106	0.240

R-LR: Robotic liver resection; RIO-RFA: Robotic intraoperative radiofrequency ablation.