Table 4.
Comparison of eGFR and mGFR agreement based on 2021 CKD-EPI equation.
| Markers and Non-GFR Determinants Used | P30 | P30 % Difference between Black and Non-Black | Correct Classification |
|---|---|---|---|
| 2009 CKD-EPI-Scr, Age, Sex, Race | Black 85% | −4% | Black 63% |
| Non-Black 89% | Non-Black 69% | ||
| 2021 CKD-EPI-Scr, Age, Sex | Black 87% | 1% | Black 62% |
| Non-Black 86% | Non-Black 67% | ||
| 2009 CKD-EPI-Cys-C Age, Sex | Black 89% | −3% | Black 68% |
| Non-Black 92% | Non-Black 71% | ||
| 2021 CKD-EPI-Cys-C/Scr Age, Sex | Black 90.5% | −0.3% | Black 68% |
| Non-Black 90.8% | Non-Black 70% |
P30 is the proportion of eGFR within 30% of measured GFR. Correct classification refers to agreement between measured GFR and eGFR categories of more than 90, 60 to 89, 45 to 59, 30 to 44, 15 to 29, and less than 15 mL per minute per 1.73 m2.