To determine kidney health, doctors first measure factors such as the level of creatinine, a by-product of muscle breakdown, in the blood. This could be explained by the fact that a higher proportion of Black study participants may have already had end-stage kidney disease. In order to qualify for a kidney transplant, a patient’s eGFR score has to be low enough to be considered end-stage kidney disease. By this point, I’d already seen so many instances where race, particularly Black race, is brought up as a risk factor—somehow the color of your skin is linked to all of your physiology. The National Kidney Foundation is having a whole task force to discuss whether or not national recommendations should be changed.