ALB and liver disorder: In this study, 124 individuals were ineligible, including 15 with history of other abdominal operations (such as colectomy or gastrectomy), 7 with comorbidity of liver disease, 2 with missing data of BMI or preoperative albumin, 96 with benign lesions, and 4 with exceeding grade 3 of the American Society of Anesthesiologists (ASA) classification.