LCN2 and acute kidney injury: After multivariate adjustment, there was a significant association between urine Ba and AKI (OR 1.57 [95% CI, 1.13 to 2.20]; P=0.007) and urine NGAL and AKI (OR 1.57 [1.12 to 2.20]; P=0.009), but not urine IL-18.