Figure 1.
![Histogram comparing estimated glomerular filtration rates obtained by CKD-EPI–2009 and CKD-EPI–2021 equations in patients with sickle cell anemia. Green bars show eGFR using CKD-EPI–2009, while pink bars show eGFR using CKD-EPI–2021 (gray areas indicate overlap). The green and red curves are the density curves for the corresponding histograms. The mean (105.6 ± 35.4 mL/min per 1.73 m2 vs 106.4 ± 33.5 mL/min per 1.73 m2) and median (114.2 mL/min per 1.73 m2 [IQR, 82.5-132.1] vs 116.5 mL/min per 1.73 m2 [IQR, 85.9-131.6]) eGFR values obtained using CKD-EPI–2009, without adjustment for Black race, are very similar to those obtained using CKD-EPI–2021.](https://ash.silverchair-cdn.com/ash/content_public/journal/bloodadvances/6/15/10.1182_bloodadvances.2022007693/2/advancesadv2022007693f1.png?Expires=1720817389&Signature=kjnunOglnjHiK0ELqAjHekSL~7QdAkIi8eaa0zJR8M6VLLieLEGQefnKVnMbyvY0IvRGKrCco105VDfUcLFa5ZKXYTyhj8FQ7ERbubOIQQvbvZr~XV7w5E97RawzqiibM5L4MKICTV8layFnOLWXCvAxvmMaVm1cmz7eT-gniKyMuO3xB1NIwC5Ox7tqpwz2r5sQAVD-WBl8KSUQTsnChRx35X82iZV6xTStr8zbx2vMKoiYT1VbtHX89VnbSkUCA3RMVEfELhIpm985xCxT6HqN5Y4dlVVzJ0Pz80ycKW4fAxdYajyCN8Vo7s5s2m3c8CdwIM59vV4TKn9tKV9~Sg__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA)
Histogram comparing estimated glomerular filtration rates obtained by CKD-EPI–2009 and CKD-EPI–2021 equations in patients with sickle cell anemia. Green bars show eGFR using CKD-EPI–2009, while pink bars show eGFR using CKD-EPI–2021 (gray areas indicate overlap). The green and red curves are the density curves for the corresponding histograms. The mean (105.6 ± 35.4 mL/min per 1.73 m2 vs 106.4 ± 33.5 mL/min per 1.73 m2) and median (114.2 mL/min per 1.73 m2 [IQR, 82.5-132.1] vs 116.5 mL/min per 1.73 m2 [IQR, 85.9-131.6]) eGFR values obtained using CKD-EPI–2009, without adjustment for Black race, are very similar to those obtained using CKD-EPI–2021.