Table 4.

Univariable and multivariable analyses into factors that relate to predialysis serum phosphate level

Determinant	Univariable Model		Multivariable Model
Determinant	B	95% CI	B	95% CI
Gender (male)	−0.12	−0.38 to 0.14
Age (10 years)	−0.26	−0.35 to −0.17^{^a}	−0.22	−0.31 to −0.12^{^a}
Diabetes	−0.09	−0.39 to 0.22
Dialysis vintage (years)	−0.04	−0.09 to 0.00^{^a}	−0.08	−0.12 to −0.03^{^a}
Body mass index (kg/m²)	0.01	−0.01 to 0.04
GFR 0 to 1.65 (ml/min per 1.73 m²)^{^b}	0.45	0.12 to 0.79	0.19	−0.17 to 0.54
GFR 1.66 to 4.13 (ml/min per 1.73 m²)^{^b}	−0.11	−0.45 to 0.22	−0.32	−0.67 to 0.03
GFR > 4.13 (ml/min per 1.73 m²)^{^b}	−0.45	−0.79 to −0.10	−0.69	−1.1 to −0.31^{^a}
Serum albumin (g/dl)	0.74	0.41 to 1.08^{^a}	0.46	0.12 to 0.79^{^a}
nPNA (g/kg per day)	1.04	0.56 to 1.51^{^a}	1.09	0.60 to 1.57^{^a}
Weekly dialysis Kt/V	−0.01	−0.19 to 0.18
Phosphate binders (DDD)	0.18	0.06 to 0.30^{^a}	0.09	−0.03 to 0.21

B, regression coefficient (i.e., the change in serum phosphate level per unit increment in the determinant.
↵a P < 0.05.
↵b Anuric patient group is reference.