Fig 3. ROC curves of T₅₀, 25D, PTH, proteinuria and eGFR in predicting Fibrosis >40%.

As T₅₀, vitamin D and eGFR are markers that are negatively associated with fibrosis, we used the opposite values of those markers. (3A-B-C-D-E) Separate ROC curves for ln PTH, T₅₀, 25D, proteinuria and eGFR (3F) ROC curve for ln PTH, 25D and T₅₀ combined. 25D: 25-hydroxyvitamin D; AUC: Area Under the Curve; eGFR: estimated Glomerular Filtration Rate; Ln: log-transformed; PTH: parathyroid hormone; ROC: Receiver Operating Characteristic; T₅₀: Calcification propensity.