eGFR is estimated GFR calculated by the abbreviated MDRD equation :
186 x (Creat / 88.4)-1.154 x (Age)-0.203 x (0.742 if female) x (1.210 if black)NB NB Important cautions about eGFR [Lien] ou copie localeRappel
Les stades de l’insuffisance rénale chronique
The stages of Chronic Kidney Disease (CKD) are mainly based on measured or estimated GFR (Glomerular Filtration Rate). There are five stages but kidney function is normal in Stage 1, and minimally reduced in Stage 2. [http://www.renal.org/] 

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