Table 3.

The multiple linear regression analysis of 25(OH)D and bone metabolism indices (Ca, P, calcium-phosphorus production, IGF-1, BALP, and iPTH).

	β	p-value
Ca	0.214	0.035
P	0.173	0.079
Calcium phosphorus production	0.233	0.019
IGF-1	0.672	<0.001
BALP	−0.369	<0.001
iPTH	0.108	0.281
Gender	−0.054	0.518

Variables, such as BMI, age, eGFR, and gender, are adjusted in the linear regression models.

BMI, body mass index; eGFR, glomerular filtration rate; Ca, serum calcium; P, serum phosphorus; iPTH, intact parathyroid hormone; BALP, bone alkaline phosphatase; IGF-1, insulin-like growth factor-1.