Table 2. Presents the results of linear regression analysis examining the relationship between CKD and testosterone.

		β (95% CI)
		Non-adjusted	Adjust I	Adjust II
CKD
	Yes	Reference	Reference	Reference
	No	19.819 (14.897, 24.741)	59.020 (55.522, 62.518)	28.423 (24.762, 32.083)
	p-value	<0.00001	<0.00001	<0.00001

CKD: chronic kidney disease.

p-value was calculated by the weighted chi-square test.