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. Author manuscript; available in PMC: 2020 May 1.
Published in final edited form as: Heart Rhythm. 2018 Nov 24;16(5):743–753. doi: 10.1016/j.hrthm.2018.11.026

Figure 2.

Figure 2.

(A) Histograms for the 12 candidate biomarkers measured in the entire SMART-AV CRT sample set (n=758) with a vertical line representing the mean of the SMART-AV sample. The referent normal values (“Ref Norm”; age-matched control subjects (n=26)) vertical line has been superimposed as a frame of reference. (B) Distribution of the 12 candidate biomarkers as a function of 1st and 3rd quartile and the median value (box and whisker plots), dichotomized for the pre-specified response to CRT. NT-proBNP: 1pmol/L = 0.445 ng/mL