Table 3 Simple linear regression analysis for determine prediction of creatinine clearance by different GFR formulas

Constant

16.57

5.88

0.007*

0.629

0.396

Cockcroft-Gault

0.5

0.08

< 0.001*

Constant

16.07

5.5

0.005*

0.661

0.436

MDRD

0.67

0.1

< 0.001*

Constant

15.63

5.23

0.004

0.685

0.469

CKD-EPI

0.64

0.09

< 0.001*

Constant

7.29

3.18

0.026*

0.886

0.785

CKD-EPI creatinine-cystatin C

0.96

0.07

< 0.001*

Constant

19.76

3.24

< 0.001*

0.811

0.657

CKD-EPI cystatin C

0.78

0.07

< 0.001*