Table 4.

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

DeterminantUnivariable ModelMultivariable Model
B95% CIB95% CI
Gender (male)−0.12−0.38 to 0.14
Age (10 years)−0.26−0.35 to −0.17a−0.22−0.31 to −0.12a
Diabetes−0.09−0.39 to 0.22
Dialysis vintage (years)−0.04−0.09 to 0.00a−0.08−0.12 to −0.03a
Body mass index (kg/m2)0.01−0.01 to 0.04
GFR 0 to 1.65 (ml/min per 1.73 m2)b0.450.12 to 0.790.19−0.17 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 −0.31a
Serum albumin (g/dl)0.740.41 to 1.08a0.460.12 to 0.79a
nPNA (g/kg per day)1.040.56 to 1.51a1.090.60 to 1.57a
Weekly dialysis Kt/V−0.01−0.19 to 0.18
Phosphate binders (DDD)0.180.06 to 0.30a0.09−0.03 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.