GSTM1 and diabetes mellitus: Alb: albumin; ASA-PS: American Society of Anesthesiologists Physical Status classification; BA: bronchial asthma; BSA: body surface area; Cre: creatinine; DM: diabetes mellitus; Hb: hemoglobin; HbA1c: hemoglobin A1c; Hct: hematocrit; HT: hypertension; LVEF: left ventricular ejection fraction; NLR: neutrophil-to-lymphocyte ratio