Glomerular Filtration Rate Estimate by the MDRD Equation

GFR = 170 * SerumCreat-0.999 * Age-0.176 * Sex * Race * BUN-0.170 * Albumin0.318

Serum Creat  
Sex Female (0.762)

Male (1)
Race Black (1.18)

Non-Black (1)

GFR   mL/min/1.73 m2
Decimal Precision  
  • Equation parameters such as Sex, have two or more discrete values that may be used in the calculation. The numbers in the parentheses, e.g. (0.762), represent the values that will be used.

  1. Levey AS, Bosch JP, Lewis JB, et al. A more accurate method to estimate glomerular filtration rate from serum creatinine: a new prediction equation. Modification of Diet in Renal Disease Study Group. Ann Int Med. 1999 Mar 16;130(6):461-70. PubMed ID: 10075613 PubMed Logo


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