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Table 2 Correlations between parameters that have interaction with FGF23

From: Deviations from the expected relationship between serum FGF23 and other markers in children with CKD: a cross-sectional study

n = 144

CysC eGFR [mL/min/1.73 m2]

Phosphate [mmol/L]

Ionized Calcium

1,25 (OH)2 Vit D [pmol/L]

PTH [pmol/L]

pH

Bicarbonate

CRP

FGF23 [pg/mL]

(r-rho, p)

−0.548

0.000*

0.667

0.000*

−0.360

0.000*

−0.338

0.000*

0.516

0.000*

0.213

0.029*

0.156

0.071

0.243

0.004*

ΔFGF23 [pg/mL]

(r-rho, p)

0.193

0.021*

0.329

0.000*

−0.144

0.107

−0.043

0.628

0.205

0.018*

0.219

0.026*

0.029

0.743

0.048

0.585

  1. *denotes significant associations (p < 0.05)
  2. FGF23 Fibroblast Growth Factor 23, CysC Cystatin C, Vit Vitamin, PTH Parathyroid Hormone
  3. ΔFGF23 was calculated as measured FGF23 - expected FGF23
  4. As seen in Fig. 1, the expected FGF23 for a given cystatin C concentration can be calculated as Y = 1295 * e-0.07247*X + 38.35, where X is a given cystatin C concentration and Y is the expected FGF23 concentration