Table 4.

Predictors of serum parathyroid hormone increase in chronic kidney disease patients

Predictor	Beta	95% CI	p
Intercept	-	7.68 to 9.20	<0.001
Ln(eGFR)	–0.68	–1.35 to –0.90	<0.001

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

Adjusted R2 = 0.461, p<0.001. N=115. 95% CI: 95% confidence interval; iPTH: serum intact parathyroid hormone; eGFR: estimated glomerular filtration rate; PO4: serum phosphate; tCa: serum total calcium; 25OHD: serum 25-hydroxy-vitamin D; AP: serum total alkaline phosphatase; ACR: urinary albumin-to-creatinine-ratio