Figure 1.
Receiving operating curve for predicting Agatston coronary artery calcification score ≥ 1000. In a risk prediction model for predicting CAC score ≥ 1000, we used five factors obtained from an earlier variable selection (i.e., SOx, male, serum phosphate, intact parathyroid hormone, and LDL cholesterol). The area under the receiver operating characteristic curve was 0.87 (95%CI 0.76–0.98), and sensitivity and specificity were 81.8% and 76.5%, respectively. AUC area under the curve, CAC coronary artery calcification, CI confidence interval, LDL low-density lipoprotein, SOx serum oxalate concentration.