Table 5.

Univariable and multivariable analyses into factors that relate to ESA index in patients using ESA

DeterminantUnivariable ModelMultivariable Model
B95% CIB95% CI
Gender (male)−0.21−0.35 to −0.07b−0.23−0.37 to −0.09b
Age (10 years)−0.04−0.09 to 0.01−0.04−0.09 to 0.01
Diabetes mellitus0.07−0.10 to 0.23
Dialysis vintage (years)−0.02−0.04 to 0.01−0.04−0.07 to −0.02b
Weekly dialysis Kt/V0.07−0.03 to 0.17
ACEI or ARB0.05−0.09 to 0.19
GFR 0 to 1.65 (ml/min per 1.73 m2)a0.04−0.14 to −0.22−0.14−0.33 to 0.05
GFR 1.66 to 4.13 (ml/min per 1.73 m2)a−0.08−0.26 to 0.10−0.19−0.37 to 0.00
GFR > 4.13 (ml/min per 1.73 m2)a−0.34−0.53 to −0.16b−0.49−0.69 to −0.29b
Serum albumin (g/dl)−0.38−0.56 to −0.21b−0.33−0.51 to −0.16b
TSAT (%)−0.02−0.02 to −0.01b−0.02−0.02 to −0.01b
iPTH (pg/ml)0.000.00 to 0.003
  • The dependent variable is the logarithm of ESA index. B, regression coefficient (i.e., the change in serum phosphate level per unit increment in the determinant).

  • a Anuric patient group is reference.

  • b P < 0.05.