Variable Details

Available Studies

ROS, MAP, MARS, Clinical Core, LATC

Scaled? 

Not Scaled

Variable Type 

Longitudinal

Variable Name 

gfr_mdrs

Categories

Blood Measures

Estimated glomerular filtration rate
Glomerular filtration rate based on Modified Diet in Renal Disease study

Estimated glomerular filtration rate (eGFR) is a measure of kidney function, calculated using serum creatinine (CRN) and the 4-variable Modification of Diet in Renal Disease (MDRD) study formula. Serum CRN is determined with a basic metabolic panel performed by Quest Diagnostics and is not recalibrated to be traceable by isotope dilution mass spectrometry. The MDRD formula is as follows:

  1. For white males, eGFR = 186 x (CRN) - 1.154 x (age) - 0.203
  2. For females, eGFR is multiplied by 0.742.
  3. For black participants, eGFR is multiplied by 1.21.
  4. For black females, eGFR is multiplied by both 0.742 and 1.21.

Publications