Association between Serum Cystatin C and Diabetic Foot Ulceration in Patients with Type 2 Diabetes: A Cross-Sectional Study

Figure 2

ROC analysis of CysC and creatinine to indicate diabetic foot for all diabetes participants. For CysC, AUC = 0.740, 95% confidence interval, 0.683–0.798; identified cut-off value = 0.735 mg/L; Youden index = 0.360; sensitivity: 73.9%; specificity: 62.1%.