Fig. 2.
(A) Distribution of serum neutrophil gelatinase-associated lipocalin (S-NGAL) values obtained from donors with no subsequent renal replacement therapy (RRT) in recipients at day 8 (red dashed line) and from donors with subsequent RRT in recipients at day 8 (blue solid line). The density function represents the number of patients with a given value of NGAL. (B) Receiver operator characteristic (ROC) curve for S-NGAL to predict the need for renal replacement therapy at day 8 postgraft. The area under the ROC curve was 0.50 (95% CI, 0.42 to 0.59). No cutoff value could be identified.