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. Author manuscript; available in PMC: 2016 Jul 1.
Published in final edited form as: Am J Kidney Dis. 2015 Mar 12;66(1):75–83. doi: 10.1053/j.ajkd.2015.01.013

Table 2.

Pearson Correlations Between Filtration Markers

mGFR eGFRcr eGFRcys 1/BTP 1/B2M
mGFR 1.00
eGFRcr 0.76 1.00
eGFRcys 0.79 0.80 1.00
1/BTP 0.32 0.37 0.39 1.00
1/B2M 0.65 0.61 0.80 0.35 1.00

Abbreviations: B2M, β2-microglobulin; BTP, β-trace protein; eGFRcr, creatinine-based estimated glomerular filtration rate; eGFRcys, cystatin C–based estimated glomerular filtration rate; mGFR, measured glomerular filtration rate.

Note: All P-values for correlations are <0.001.