The diagnosis of MAFLD was based on the presence of hepatic steatosis (>5%, detected by postoperative liver histopathology) in addition to one of the following 3 criteria: body mass index (BMI) ≥ 23 kg/m2, T2DM, or metabolic dysregulation.[14 (link)] The metabolic dysregulation was defined as the presence of 2 or more of the following abnormalities: high waist circumference, hypertension, abnormal levels of plasma triglycerides or cholesterol, prediabetes or insulin resistance and high level of plasma high-sensitivity C-reactive protein.[14 (link)] Lean-MALFD was defined as the patients with MAFLD and BMI < 23kg/m2. Hepatectomy was defined as complete resection of all microscopic and macroscopic tumors with negative histologic resection margin.[17 (link)] Cirrhosis and hepatic steatosis were determined directly by imaging or postoperative hepatic histopathology. Alcohol consumption was defined as male ≥ 30 g/day, female ≥ 20 g/day.[18 (link)] HBV infection was defined as the evidence of hepatitis B surface antigen-positive and/or HBV DNA-positive. HBV-HCC refers to HCC caused by HBV infection. The severity of complications was graded using Dindo–Clavien classification.[19 (link)] Major complications were defined as complications of Clavien classification ≥ III. Among major complications, complications for which surgical or radiologic intervention with antibiotics was needed, such as intraabdominal infection, pneumonia, and wound infection and sepsis were defined as infectious complications. Postoperative death was defined as death from a postoperative complication within 30 days after hepatectomy.