Table 3.

Change and percentage change in the largest volume of parathyroid gland from baseline at week 30

Largest volume of parathyroid gland	Prior cinacalcet use	n	Mean ± SD	P value
Change (mm3)	All	159	–39.3 ± 355.8	0.091
	Nonusers	56	–120.6 ± 567.2	0.043
	Users	103	4.9 ± 130.5	0.680
Percentage change (%)	All	159	–0.3 ± 50.8	0.196
	Nonusers	56	–1.7 ± 54.4	0.510
	Users	103	0.5 ± 48.9	0.275

Wilcoxon signed-rank test.