Figure 2.
ROC curve analysis for the diabetic patients with normal serum creatinine concentrations and A1C levels ≥6.5 and ≤9.0%. A: ROC curve. Marker represents optimal value. B: Sensitivity and specificity plotted against a cutoff value of plasma 1,5-AG concentration. Additional vertical gridlines represent the optimal cutoff value of 6.5 μg/ml.