Fig. 4

Cutoff values and model performance of the single important feature. A Youden’s index and cutoff values for eGFR < 60 mL/min/1.73 m² and dialysis using hemoglobin level as a single feature; B ROC curves and AUC values for eGFR < 60 mL/min/1.73 m² and dialysis using hemoglobin level as a single feature; C Youden’s index and cutoff values for eGFR < 60 mL/min/1.73 m² and dialysis using HbA1c level as a single feature; D ROC curves and AUC values for eGFR < 60 mL/min/1.73 m² and dialysis using Hb A1c level as a single feature AUC area under the curve, eGFR estimated glomerular filtration rate, HbA1c hemoglobin A1c, ROC receiver operating characteristic