Table 6.

Factors associated with calcitriol: univariate and multivariate regression analyses using calcitriol as the dependent variable

Independent VariablesM3M12
β coefficientPR2β coefficientPR2
Univariate models
    PTH6.530.0970.060.20.920
    FGF-23−9.450.0230.11−10.60.0040.19
    Calcidiol0.040.8900.220.180.04
    Alkaline phosphatases0.0860.0060.150.0230.530.01
    eGFR0.260.350.020.560.0060.17
Multivariate
    PTH11.540.0034---
    FGF-23−14.10.0009−10.60.0040.19
    Overall model0.0010.26
  • Parameters included in the model: serum albumin-corrected calcium, phosphorus, PTH, FGF-23, calcidiol, calcitriol alkaline phosphatases, and eGFR. PTH and FGF-23 were Ln-transformed for regression analyses. Only parameters univariately associated at P ≤ 0.2 for at least one time point are mentioned in the table.