ALB and acute kidney injury: After adjusting for potential confounding risk factors (Hosmer-Lemeshow Chi-square: 5.2, p = 0.520), and using the negative group as reference, the odds ratio (OR) of CI-AKI was 3.8 (95% CI: 1.5–9.2, p = 0.004) for the positive urine albumin group, but 1.4 (95%CI: 0.4–4.5, p = 0.562) for the trace urine albumin group.