Table 1. Clinical characteristics of patients in the primary study cohort and validation cohorts who underwent right hepatectomy for hepatocellular carcinoma.

Values are presented as mean ± standard deviation or number (%).

INR, international normalized ratio; PIVKA, protein induced by vitamin K absence/antagonist; ICG R15, indocyanine green retention rate at 15 minutes; MELD, model for end-stage liver disease; RLV, remnant liver volume; TFLV, total functional liver volume; BW, body weight; TACE, transarterial chemoembolization; PVE, portal vein embolization; CCRT, concurrent chemoradiotherapy.

^a)Postoperative complication was assessed by Clavien-Dindo classification.