LCN2 and acute kidney injury: The diagnostic odds ratio (DOR) and sample size-weighted area under the curve for the receiver-operating characteristic (AUC-ROC) for NGAL to predict AKI were 18.6 (95% CI: 9.0-38.1)/0.815 (95% CI: 0.732-0.892) in a meta-analysis study of 19 studies with AKI [46].