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Table 3 Spearman rank correlational analysis of bone markers and CysC eGFR as well as FGF-23 for the group of all patients, group of <13 yrs and group of > 13 yrs of age

From: Fibroblast growth factor-23 and calcium phosphate product in young chronic kidney disease patients: a cross-sectional study

Correlations of CysC eGFR

Correlation coefficient

P-value

Correlations of FGF-23

Correlation coefficient

P-value

ā– All patients FGF-23

āˆ’0.4041

<0.0001

ā– All patients CysC eGFR

āˆ’0.4041

0.0002

CKD Stage

āˆ’0.8939

0.7688

CKD Stage

0.4574

< 0.0001

Calcium

0.0332

0.0090

Calcium

āˆ’0.2020

0.0705

Phosphate

āˆ’0.2887

0.0083

Phosphate

0.1791

0.1097

Ca*P

āˆ’0.2914

0.3484

Ca*P

0.1645

0.1422

25-OH Vit D

āˆ’0.1062

<0.0001

25-OH Vit D

0.0554

0.6253

125(OH)2 Vit D

0.5926

0.0241

125(OH)2 Vit D

āˆ’0.3455

0.0034

Alk Phosph

āˆ’0.2603

0.0002

Alk Phosph

āˆ’0.0858

0.4644

PTH

āˆ’0.5758

0.0002

PTH

0.3298

0.0039

ionized Ca

0.4278

<0.0001

ionized Ca

āˆ’0.3301

0.0049

ā– < 13 yrs

Ā Ā 

ā– < 13 yrs

Ā Ā 

FGF-23

āˆ’0.0798

0.6388

CysC eGFR

āˆ’0.0798

0.6388

CKD Stage

āˆ’0.8850

<0.0001

CKD Stage

0.1054

0.5348

Calcium

0.0684

0.6873

Calcium

āˆ’0.1727

0.3067

Phosphate

0.0649

0.7029

Phosphate

āˆ’0.0324

0.8490

Ca*P

0.0605

0.7221

Ca*P

āˆ’0.0440

0.7960

25-OH Vit D

āˆ’0.3134

0.0589

25-OH Vit D

0.1307

0.4405

125(OH)2 Vit D

0.4281

0.0163

125(OH)2 Vit D

0.1203

0.5193

Alk Phosph

āˆ’0.2764

0.1080

Alk Phosph

āˆ’0.1290

0.4602

PTH

āˆ’0.4727

0.0048

PTH

0.1235

0.4864

ionized Ca

0.4468

0.0081

ionized Ca

āˆ’0.2085

0.2366

ā– > 13 yrs

Ā Ā 

ā– > 13 yrs

Ā Ā 

FGF-23

āˆ’0.6330

<0.0001

CysCeGFR

āˆ’0.6330

<0.0001

CKD Stage

āˆ’0.8975

<0.0001

CKD Stage

0.7309

<0.0001

Calcium

0.0135

0.9305

Calcium

āˆ’0.1796

0.2435

Phosphate

āˆ’0.5558

<0.0001

Phosphate

0.5570

<0.0001

Ca*P

āˆ’0.5618

<0.0001

Ca*P

0.5343

<0.0001

25-OH Vit D

0.0400

0.7990

25-OH Vit D

0.0032

0.9835

125(OH)2 Vit D

0.6888

<0.0001

125(OH)2 Vit D

āˆ’0.6306

<0.0001

Alk Phosph

āˆ’0.4289

0.0058

Alk Phosph

0.2834

0.0764

PTH

āˆ’0.6071

<0.0001

PTH

0.4747

0.0017

ionized Ca

0.4592

0.0042

ionized Ca

āˆ’0.5034

0.0015

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BMC Nephrology

ISSN: 1471-2369

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