Figure 1:
![Comparison of the three equations separated by gender: GFR estimated by the EKFC equation was less skewed and shifted to lower eGFR than GFR estimated by the CKD-EPI 2009 equation (mean difference −7.9 [95%CI: −7.8 to −8.0] ml/min/1.73 m2). The difference between eGFR according to the CKD-EPI 2009 equation and the CKD-EPI 2021 equation was less pronounced (mean difference 0.7 [95%CI: 0.6 to 0.8] ml/min/1.73 m2).](https://oup.silverchair-cdn.com/oup/backfile/Content_public/Journal/ckj/17/2/10.1093_ckj_sfae011/1/sfae011fig1.jpeg?Expires=1749408797&Signature=Yus2hmGBsaYrVjse9uAOguc5DXsKEfN2XjFKzzVEM1E7UvXbqsVTvPB0hci5Kg-Y0wY02hpCKoSI1HZMHvbavzVVfChBlfEC2P0UFsoCYHRw3Ufic1ZEVtsUpnx3TcHJ-jX4C2ylNAVz9b4XXl5L~OtRdeCBE4TYbXXGrUU2rFt1sNHgh7uae0QzEg8lPfI5z7JK9ChKaJgzgv-B9rVR~zEqpaVtzu9vqWaLidHd-TR1CSMnc537XlZXglMia0Ihq7WBRv4TSrLDiZBh5OYUmNXMl9H-m7pM7FVoxOT-CeX7nKorTa9E3zz7zx6yRP5mMLKIcii17d3BUpn6QZ4NNg__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA)
Comparison of the three equations separated by gender: GFR estimated by the EKFC equation was less skewed and shifted to lower eGFR than GFR estimated by the CKD-EPI 2009 equation (mean difference −7.9 [95%CI: −7.8 to −8.0] ml/min/1.73 m2). The difference between eGFR according to the CKD-EPI 2009 equation and the CKD-EPI 2021 equation was less pronounced (mean difference 0.7 [95%CI: 0.6 to 0.8] ml/min/1.73 m2).
