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Table 6 Bias, precision, and accuracy of creatinine and cystatin C estimates in male patients

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 − 20.2 14.7 17 24
• MDRD − 4 10.7 24 90
• CKD-EPI − 6.8 10.7 24 86
Estimates using both serum creatinine and cystatin C
• CKD-EPI creatinine-cystatin C equation 6 8.5 69 90
Estimates using serum cystatin C
• CKD-EPI cystatin C equation 14.2 10.6 10 66