GSTM1 and acute kidney injury: As shown in Table 2, the univariate logistic regression analysis showed the male sex, age, ICU LOS, ventilation, CHF, HBP, CKD, ARDS, SBP, DBP, MAP, Hb, RBC, platelet, HbA1c, Scr, lactic acid, SOFA score, SAPSII, OASIS, TRF, TIBC, SF, and TRF saturation were risk factors for AKI in critically ill patients with diabetes (P < 0.05).