Figure 2From: The MDRD equation underestimates the prevalence of CKD among blacks and overestimates the prevalence of CKD among whites compared to the CKD-EPI equation: a retrospective cohort study Unadjusted prevalence of CKD in the study population when only 1 serum creatinine versus 2 serum creatinine measurements is used in the MDRD or CKD-EPI equation. The prevalence of CKD is reduced by 40% when using 2 serum creatinines.Back to article page