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