GSTM1 and alcohol drinking: In the univariate analysis, the results showed that gender, height, weight, BMI, smoking, alcoholism, indications, anesthesia, operation time, procedures, intraoperative blood loss, TXA use, coronary heart disease, Hb, HCT, RDW, WBC, and RET were significantly different between the transfusion and nontransfusion groups (Table 1).