Figure 2.

Median and Interquartile Ranges for Vitamin D, Creatinine, Calcium, and Parathyroid Concentrations at 3 Monthly Time Points in VINDICATE by Treatment Allocation

Vitamin D concentrations are described in relation to deficiency (green line), sufficiency (orange line), and the accepted upper limit for hypervitaminosis D (red line). Serum calcium levels are described in relation to upper limit of normal range (red line), and serum parathyroid hormone concentrations in relation to the normal range (between red lines). Conversion factors: vitamin D nmol/l · 0.4 = ng/ml; creatinine mmol/l · 0.11 = mg/dl; calcium mmol/l · 4 = mg/dl; parathyroid hormone pmol/l · 9.4 = pg/ml. VINDICATE = VitamIN D treatIng patients with Chronic heArT failurE.