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=1735481200&Signature=PNLyAbjwphOs3QDeVyQM8qpObKmanZiLXm9tHuxUpeKZRtlLhPIk60eOxSNFDwOvdCFCUHJby7Mw~O7GB2k2HAsKTKjJrcAkZvV8WEGk1GJb7vKtB3Suqf00pKt0nsDV-8XMuqvWKFZc1JksTsPabwjCmfONXSRuirkl-W960UbZm7gTYDahfOa1T38TIJk-EXcCqULChSS2k5VLowntjMu6Fzmj~7qLx1TXrq5MV0i8dhxTyYRFt-3WXBi14wx5RQ8oD3oME6niChjlWG0gy7DEQIl1XTfRrBnq-HBspYTyEWmk7DCRmoqHd5Z7iu2F52obNwhyt9TwT16LOAd8Kg__&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.