Fig. 3From: Plasma indole-3-aldehyde as a novel biomarker of acute kidney injury after cardiac surgery: a reanalysis using prospective metabolomic dataAnalysis of I3A in plasma samples prior to cardiac surgery. a Boxplot showing differential I3A. b ROC analyses for predicting AKI and Non-AKI in all participants. The clinical model includes age, APACHE II score, hemoglobin, and cardiopulmonary bypass time, alongside I3A. AKI: acute kidney injury, APACHE II: acute physiology and chronic health evaluation II, AUC: area under the ROC, I3A: indole-3-aldehyde, ROC: receiver operating characteristic curveBack to article page