Figure 3

Identification of four distinct subgroups of dialysis patients with secondary hyperparathyroidism (SHPT) using multiple correspondence analyses. The horizontal axis defined the presence or absence of calcium supplementation, the presence or absence of treatment with cinacalcet, and serum PTH below or above 500 ng/L. The vertical axis defined a normophosphatemia, a hyperphosphatemia, the absence or presence of phosphorus binders, high or low level of alkaline phosphatases, the presence or absence of vitamin D supplementation, the presence or absence of calcium suplementation. Each patient is identified by a number and a color according to the following code: black for group 1 (“intermediate”), green for group 2 (younger with severe cardiovascular comorbidities), blue for group 3 (elderly patients with few cardiovascular comorbidities), pink for group 4 (“cinacalcet prescription”).