Evaluation of Serum Cystatin C as a Marker of Early Renal Impairment in Patients with Liver Cirrhosis

Table 4

Pearson’s correlation of the variables with the isotopic GFR.

1/creatinine (mg/dL^−1)	0.287	0.016
Creatinine clearance (mL/min)	0.367	0.002
1/cystatin C (mg/L^−1)	0.437	<0.0001
MDRD 4	0.260	0.030
MDRD 6	0.286	0.017
Cockcroft-Gault formula	0.198	0.100
CKD-EPI-Cr	0.247	0.039
CKD-EPI-CysC	0.473	<0.0001
CKD-EPI-Cr-CysC	0.474	<0.0001

CKD-EPI, Chronic Kidney Disease Epidemiology Collaboration; Cr, creatinine; CysC, cystatin C; MDRD, modification of diet in renal disease equation with 4 and 6 variables; , Pearson’s correlation coefficient.