ALB and acute kidney injury: Univariate analysis revealed that baseline eGFR (p = 0.022), serum albumin (p = 0.001), bilirubin (p = 0.015), CCI score (p = 0.001), SIRS (p < 0.026), neutrophils (p < 0.001), leucocytes (p < 0.001), and moderate-to-severe AKI (stages 2 and 3) (p < 0.001) were all associated with increased in-hospital mortality.