Table 2.
Bias and precision of each equation by gender, and accuracy of prediction at ± 15%, ± 30% and ± 50% levels (p15, p30 and p50)
| Equation | Gender | N | Bias | Precision | Accuracy within subjects | CRMSE | ||
|---|---|---|---|---|---|---|---|---|
| ± 15% | ± 30% | ± 50% | ||||||
| MDRD | Male | 212 | − 9.34 | 22.02 | 41.0% | 68.4% | 84.0% | 23.92 |
| Female | 263 | − 23.65 | 24.97 | 25.5% | 47.1% | 71.1% | 34.39 | |
| CKD-EPI | Male | 212 | − 9.15 | 21.41 | 40.1% | 67.0% | 84.4% | 23.28 |
| Female | 263 | 0.04 | 20.45 | 44.5% | 79.5% | 91.6% | 20.45 | |
Bias mean of the difference of estimated and measured renal functions. Precision standard deviation of bias, CRMSE combined root mean square error