Fig. 2
From: Machine learning model for early prediction of acute kidney injury (AKI) in pediatric critical care
a AUROC of the model developed in this study and the renal angina index (RAI). Model AUROC increases closer to onset time, especially inside the training window of 48 to 24 h. b The receiver-operator curve at 30 h before onset time for the model and RAI. H1, H2 and H3 represent results from the holdout test data of the three hospitals. RAI results are shown for holdout test data from all three hospitals (H1-3)