Article (Scientific journals)
Creatinine - or cystatin C - based equations to estimate glomerular filtration in the general population: impact on the epidemiology of chronic kidney disease
DELANAYE, Pierre; CAVALIER, Etienne; Moranne, Olivier et al.
2013In BMC Nephrology, 14, p. 57
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Abstract :
[en] Chronic kidney disease (CKD) is a major issue in public health. Its prevalence has been calculated using estimation of glomerular filtration rate (GFR) by the creatinine-based equations developed in the Modified Diet in Renal Disease (MDRD) and Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) study. Recently, new equations based either on cystatin C (CKD-EPI Cys) or both cystatin and creatinine (CKD-EPI mix) have been proposed by the CKD-EPI consortium. The aim of this study was to measure the difference in the prevalence of stage 3 CKD, defined as an estimated GFR less than 60 mL/min/1.73 m2, in a population using these four equations. METHODS: CKD screening was performed in the Province of Liege, Belgium. On a voluntary basis, people aged over 50 years have been screened. GFR was estimated by the four equations. Stage 3 CKD was defined as a GFR less than 60 mL/min/1.73 m2. RESULTS: The population screened consisted of 4189 people (47% were men, mean age 63 +/- 7y). Their mean serum creatinine and plasma cystatin C levels were 0.88 +/- 0.21 mg/dL and 0.85 +/- 0.17 mg/L, respectively. The prevalence of CKD in this population using the MDRD, the CKD-EPI, the CKD-EPI Cys and the CKD-EPI mix equations was 13%, 9.8%, 4.7% and 5%, respectively. The prevalence of CKD was significantly higher with the creatinine-based (MDRD and the CKD-EPI) equations compared to the new cystatin C-based equations. CONCLUSIONS: Prevalence of CKD varies strongly depending on the method used to estimate GFR. Such discrepancies are of importance and must be confirmed and explained by additional studies, notably by studies using GFR measured with a reference method
Disciplines :
Laboratory medicine & medical technology
Author, co-author :
DELANAYE, Pierre  ;  Centre Hospitalier Universitaire de Liège - CHU > Néphrologie
CAVALIER, Etienne  ;  Centre Hospitalier Universitaire de Liège - CHU > Chimie médicale
Moranne, Olivier
LUTTERI, Laurence ;  Centre Hospitalier Universitaire de Liège - CHU > Chimie médicale
KRZESINSKI, Jean-Marie ;  Centre Hospitalier Universitaire de Liège - CHU > Néphrologie
Bruyère, Olivier  ;  Université de Liège - ULiège > Département des sciences de la santé publique > Santé publique, Epidémiologie et Economie de la santé
Language :
English
Title :
Creatinine - or cystatin C - based equations to estimate glomerular filtration in the general population: impact on the epidemiology of chronic kidney disease
Publication date :
12 March 2013
Journal title :
BMC Nephrology
eISSN :
1471-2369
Publisher :
BioMed Central
Volume :
14
Pages :
57
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 27 March 2013

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