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

From: Comparative study of various glomerular filtration rate estimating equations in Egyptian patients with hepatitis C virus-related liver cirrhosis: a single-center observational study

Model Unstandardized coefficients p value R R2
B Std. error
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*