GSTM1 and hypertensive disorder: In addition, we analyzed the correlation between frailty assessment and 11 statistically different preoperative indicators in Table 1 and Table 2, it was found that preoperative frailty was associated with TnT, MyO, CK-MB, Hb, Alb, Cr, EF, hypertension classification, cardiac function classification, ASA classification, and preoperatively proposed operation method (Table 4).