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ROC curve for the detection of AKI recovery using urine NGAL at day 0 after AKI diagnosis. ROC curve demonstrates the prognostic sensitivity and specificity of urine NGAL in the prediction of AKI recovery (AUC = 0.78; 95% CI 0.64-0.90). AUC, Area under the curve; ROC, Receiver operating characteristic; AKI, Acute kidney injury; NGAL, Neutrophil gelatinase-associated lipocalin.
