Table 5.

Predictors of low levels of calcidiol in chronic kidney disease patients

Predictor	Beta	95% CI	p
Intercept	-	3.83 to 6.40	<0.001
Ln(Age)	–0.30	–0.81 to –0.22	0.001
Ln(ACR)	–0.31	–0.16 to –0.04	0.001

Dependent variable: Ln(25OHD). Independent variables included in the first step: Ln(Age), Ln(eGFR), Ln(iPTH), Ln(PO4), Ln(AP), Ln(ACR), Ln(CRP)

Adjusted R2 = 0.144, p<0.001. N=115. 95% CI: 95% confidence interval; 25OHD: serum 25-hydroxy-vitamin D; eGFR: estimated glomerular filtration rate; iPTH: serum intact parathyroid hormone; PO4: serum phosphate; AP: serum total alkaline phosphatase; ACR: urinary albumin-to-creatinine-ratio; CRP: C-reactive protein