Figure 3

Time dependence of biomarker performance in diagnosis of acute kidney injury (AKI). White circles represent the area under the receiver operating characteristic curve (AUC) with 95% confidence interval (shaded areas). An AUC with a confidence interval not overlapping 0.5 was considered diagnostic. (A) Plasma creatinine; (B) plasma cystatin C; (C) plasma neutrophil gelatinase-associated lipocalin (NGAL); (D) urinary NGAL; (E) urinary cystatin C; (F) urinary gamma-glutamyltranspeptidase (GGT); (G) urinary α-glutathione-S-transferase (GST); (H) urinary α-GST; (I) urinary alkaline phosphatase (AP); (J) urinary albumin.