ALB and diabetes mellitus: There were no significant differences in baseline patient characteristics between the two groups with regard to age, sex, BMI, diabetes mellitus, preoperative albumin level, respiratory disease, anticoagulant, primary site (stomach or colon), American Society of Anesthesiologists (ASA) grade, operation time, perioperative blood loss, transfusion, stage, complications other than SSIs, or adverse skin reactions (Table 1).