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. Author manuscript; available in PMC: 2018 Oct 1.

Published in final edited form as: Am J Kidney Dis. 2017 Jun 23;70(4):551–560. doi: 10.1053/j.ajkd.2017.04.025

Kernel Density Plot of Change in Measured and Estimated Glomerular Filtration Rate^a,b (A) in the Modification of Diet in Renal Disease Study and (B) in the African American Study of Kidney Disease and Hypertension

^amGFR in purple; eGFR_cr in orange; eGFR_cys in pink; eGFR_BTP in blue; eGFR_B2M in yellow; average of four filtration markers in black

^bMean (standard deviation) percent change over one year in the MDRD Study and AASK, respectively, was −10.0% (18.2%) and −4.2% (18.8%) for mGFR, −10.5% (19.0%) and −3.2% (16.9%) for eGFR_cr, −1.0% (17.5%) and −2.6% (16.1%) for eGFR_cys, −3.3% (11.6%) and −2.5% (22.5%) for eGFR_BTP, −6.6% (18.9%) and −3.8% (14.7%) for eGFR_B2M, and −5.4% (14.6%) and −3.0% (13.0%) for the average of the four filtration markers.

Kernel Density Plot of Change in Measured and Estimated Glomerular Filtration Rate^a,b (A) in the Modification of Diet in Renal Disease Study and (B) in the African American Study of Kidney Disease and Hypertension

^amGFR in purple; eGFR_cr in orange; eGFR_cys in pink; eGFR_BTP in blue; eGFR_B2M in yellow; average of four filtration markers in black

^bMean (standard deviation) percent change over one year in the MDRD Study and AASK, respectively, was −10.0% (18.2%) and −4.2% (18.8%) for mGFR, −10.5% (19.0%) and −3.2% (16.9%) for eGFR_cr, −1.0% (17.5%) and −2.6% (16.1%) for eGFR_cys, −3.3% (11.6%) and −2.5% (22.5%) for eGFR_BTP, −6.6% (18.9%) and −3.8% (14.7%) for eGFR_B2M, and −5.4% (14.6%) and −3.0% (13.0%) for the average of the four filtration markers.