MDRD GFR Equation

Estimates glomerular filtration rate based on creatinine and patient characteristics.

Only for chronic kidney disease (CKD), not accurate for acute renal failure. Please also note that a recent study indicates the MDRD may underestimate the actual GFR in healthy patients by up to 29%.
Age years old
Serum Creatinine
Patient is female.
Patient is black.
GFR ml/min/1.73 m2
GFR = 175 x SerumCr-1.154 * age-0.203 * 1.212 (if patient is black) * 0.742 (if female)
Levey AS, Greene T, Kusek JW, et al. A simplified equation to predict glomerular filtration rate from serum creatinine (Abstr) J Am Soc Nephrol 2000;(11):155A








The NNT : Quick Summaries of Evidence-Based Medicine