title: Modification of diet in renal disease and Cockraft-Gaultformula accuracy in glomerular filtration rate estimation in Iranian adults.
abstract: BACKGROUND
  The aim of this study was to evaluate the accuracy of modification of diet in renal disease (MDRD) and Cockraft-Gault (C-G) formulas for estimating GFR in a sample of Iranian adult.
  
  
  METHODS
  This study was an analytic cross-sectional study on 54 patients with chronic kidney disease. Glomerular filtration rate was measured by kidney scan via TC99m-labeled diethylenetriaminepentaacetic acid, and it was estimated by MDRD and Cockraft-Gault formulas.
  
  
  RESULTS
  The mean of measured GFR and estimated GFR by MDRD and C-G formulas was 61.64 ± 34.26 ml/min, 51.80 ± 25.47, and 54.29 ± 24 ml/min respectively (P-value < 0.001, r = 0.818 and P-value < 0.001, r = 0.847, respectively). Pearson correlation test showed direct linear relationship between sGFR and GFR as estimated by the Cockraft-Gault and MDRD formulas.
  
  
  CONCLUSIONS
  Based on our results, modification of diet in renal disease (MDRD) and Cockraf-Gault (C-G) formulas are accurate formulas in Iranian adults but they need a correction factor.
authors: Isfahan Kidney Disease Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.
authors: Abdolamir
authors: A
authors: Atapour
authors: Kalantari
authors: K
authors: Elham
authors: Shahrzad
authors: S
authors: Shahidi
authors: Mojgan Mortazavi
authors: MM
authors: Najafabadi
authors: Parin
authors: P
authors: Hedayati
keywords: Cockraft-Gault formula; TC99m-Labeled diethylene triamine penta acetic acid; chronic kidney disease; glomerular filtration rate; modification of diet in renal disease
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