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Table 5 Bias, precision, and accuracy of creatinine and cystatin C estimates in HCV study group (n = 120)

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

  Bias Precision Accuracy % within
10% 30%
Estimates using serum creatinine
• Cockcroft-Gault − 18.9 16.2 17 32
• MDRD − 1.4 13.1 33 82
• CKD-EPI − 4.7 13.3 27 78
Estimates using both serum creatinine and cystatin C
• CKD-EPI creatinine-cystatin C 5.4 7.5 68 93
Estimates using serum cystatin C
• CKD-EPI cystatin C 10.8 10.1 23 72