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Year : 2015  |  Volume : 40  |  Issue : 4  |  Page : 185-189

The utility of the CKD-EPI formula for determination of glomerular filtration rate in Nigerians with sickle cell disease

1 Department of Haematology, Nnamdi Azikiwe University Teaching Hospital, Nnewi, Nigeria
2 Department of Haematology, Obafemi Awolowo University, Ile-Ife, Nigeria
3 Department of Chemical Pathology, Obafemi Awolowo University, Ile-Ife, Nigeria
4 Department of Medicine, Obafemi Awolowo University, Ile-Ife, Nigeria

Correspondence Address:
Anthony A Oyekunle
Department of Haematology and Immunology, Obafemi Awolowo University, 234-220005 Ile-Ife, Osun State
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/1110-1067.170217

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Background and objective Predictive formulae for the calculation of estimated glomerular filtration rate (eGFR) are increasingly being used in clinical practice for monitoring of renal function. We evaluated the usefulness of the CKD-EPI formula for eGFR in a population of Nigerian patients with sickle cell disease (SCD). Patients and methods One hundred SCD patients were prospectively studied. Relevant information, including age, weight and sex, was obtained from the participants, whereas creatinine clearance was measured following a 24-h urine collection. The Cockcroft-Gault (C-G) and the CKD-EPI formulae were thereafter used to calculate the glomerular filtration rate (GFR) for all participants. SPSS (version 17) and Microsoft Excel 2007 computer software were used for all data collection and analyses. A P-value of less than 0.05 was considered significant. Results The comparison of measured GFR versus eGFR by the C-G and CKD-EPI formulae in homozygous haemoglobin SS (HbSS) patients yielded correlation coefficients (r values) of 0.667 (P < 0.001) and 0.598 (P < 0.001), respectively. Correspondingly, among the heterozygous haemoglobin S + C (HbSC) patients, measured GFR versus eGFR resulted in r values of 0.819 (P < 0.001) and 0.848 (P < 0.001), respectively. Conclusion The CKD-EPI formula is a good measure of eGFR in our population of SCD patients; however, it did not perform significantly better than the C-G formula.

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