Table 2.

Bivariate analyses showing the correlations between parameters of mineral metabolism and FGF23

	C-terminal FGF23 (Immutopics)	Intact FGF23 (Kainos)
Age		0.200*
Glomerular filtration rate
Body mass index		0.198*
Calcium
Phosphorus	0.290**
Blood urea nitrogen
Parathyroid hormone
25(OH)vitamin D		0.181*
1,25 (OH)2vitamin D
C-terminal FGF23		0.255*
Intact FGF23	0.255*
TmP/GFR	0.355**
Calcium/creatinine	−0.286**
IGF1		0.235*
Uric acid	0.205*	0.277**

^*Statistically significant to a values of p < 0.05

^**Statistically significant to a value of p < 0.01

Results presented only when p < 0.05

FGF23, fibroblast growth factor 23; GFR, glomerular filtration rate; IGF1, insulin growth factor 1