ALB and acute kidney injury: The preoperative albumin level in the patients with AKI (37.74 ± 5.23) was significantly lower than in those without AKI (39.16 ± 5.39), the basal GFR value was significantly lower in the patients with AKI, and the amount of erythrocyte suspension transfusion and the mean duration of hospitalization were higher in the patients with AKI.