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Comparison of GFR estimation in patients with diabetes mellitus using the EKFC and CKD-EPI equations.

J. Nephrol. 38, 707-716 (2025)
Publ. Version/Full Text Research data DOI PMC
Open Access Gold (Paid Option)
Creative Commons Lizenzvertrag
BACKGROUND: The estimation of glomerular filtration rate (eGFR) is essential in the early detection of diabetic nephropathy. We herein compare the performance of common eGFR formulas against a gold standard measurement of GFR in patients with diabetes mellitus. METHODS: GFR was measured in 93 patients with diabetes mellitus using iohexol clearance as the reference standard. The performance of the creatinine- and cystatin C-based EKFC formulas (2021, 2023) and the CKD-EPI formulas (2009, 2012) was compared against measured GFR. RESULTS: Sixty patients with type 2 diabetes mellitus and 33 patients with type 1 diabetes mellitus were included. The creatinine-based EKFC formula showed lower bias and higher accuracy than the CKD-EPI formula. No significant difference was observed between the cystatin C-based formulas. The combined creatinine- and cystatin C-based formulas had the highest accuracy and lowest bias. Body fat or diabetes type did not significantly influence the accuracy of the cystatin C-based formulas. CONCLUSIONS: Our study demonstrated a slight advantage of the creatinine-based EKFC formula over the CKD-EPI formula in patients with diabetes. However, both for the CKD-EPI and the EKFC formula, the best performance was achieved by the combined creatinine- and cystatin C-based formulas.
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Publication type Article: Journal article
Document type Scientific Article
Corresponding Author
Keywords Chronic Kidney Disease-epidemiology Collaboration (ckd-epi) ; Creatinine ; Cystatin C ; Diabetes Mellitus ; Estimated Glomerular Filtration Rate (egfr) ; European Kidney Function Consortium (ekfc); Glomerular-filtration-rate; Creatinine; Hyperfiltration; Validation; Management
ISSN (print) / ISBN 1120-3625
e-ISSN 1724-6059
Quellenangaben Volume: 38, Issue: 2, Pages: 707-716 Article Number: , Supplement: ,
Publisher Springer
Publishing Place Tiergartenstrasse 17, D-69121 Heidelberg, Germany
Non-patent literature Publications
Reviewing status Peer reviewed
Grants Projekt DEAL