Table 4.

Questionnaire score of the study population.

Variables	Total	Hyperphosphatemia		p-value
	(n = 141)	no (n = 38)	yes (n = 103)
Hyperphosphatemia dietary and medication knowledge and behavior	19.45 ± 5.21	21.47 ± 5.47	18.71 ± 4.93	0.005
Self-efficacy	38.13 ± 9.85	41.92 ± 7.23	36.74 ± 10.33	0.005
Social support	37.40 ± 7.56	41.97 ± 7.17	35.72 ± 7.00	<0.001

Data are expressed as the mean ± standard deviation.