ALB and acute kidney injury: Compared to the non-AKI group, patients in the AKI group were significantly older (Table 1, 66.3 ± 10.1 vs. 59.2 ± 13.4, P= 0.01), had significantly lower serum albumin levels (36.6 ± 3.8 g/L vs. 38.7 ± 4.1 g/L, P= 0.002), and higher ESR levels (51.2 ± 27.0 mm/h vs. 41.4 ± 26.1 mm/h, P= 0.025).