Table 3.

Univariate linear Regression Analyses Between Percent Changes in FGF-23 and Other Biochemical Parameters

Variable	β Estimate	SE	P	95% CI
Calcium, per 1% change	2.03	1.33	0.1	−0.76 to 4.82
Phosphorus, per 1% change	1.41	0.24	<0.001	0.91 to 1.91
Intact PTH, per 1% change	0.37	0.29	0.2	−0.24 to 0.99
ALP, per 1% change	0.57	0.48	0.3	−0.44 to 1.58
1,25(OH)2D, per 1% change	0.46	0.26	0.09	−0.08 to 0.99
Soluble Klotho, per 1% change	0.85	0.49	0.1	−0.18 to 1.89
TSAT, per 1% change	−0.12	0.24	0.6	−0.63 to 0.39
Ferritin, per 1% change	0.05	0.13	0.7	−0.22 to 0.32

Abbreviations: 1,25(OH)₂D, 1,25-dihydroxyvitamin D; ALP, alkaline phosphatase; PTH, parathyroid hormone; TSAT, transferrin saturation.