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This study presents two key analyses of MR-proANP and NT-proBNP values. Figure A illustrates a scatter plot of the original values of MR-proANP and NT-proBNP on a natural log scale, highlighting their relationship. Figure B features a Bland-Altman plot displaying the differences between the z-scores of MR-proANP and NT-proBNP after logarithmic transformation. This plot includes lines representing the mean difference and the 95% confidence interval, providing insight into the agreement between the two biomarkers.
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Supplemental Data Figure 1.A. Scatter plot of the original values of MR-proANP and NT-proBNP. A natural log scale was used for both axes. B. Bland-Altman plot of the logarithmically transformed MR-proANP and NT-proBNP values. For the Bland-Altman plot z-scores were calculated. The y-axis represents the difference between the z-scores of MR-proANP and the z-scores of NT-proBNP. The lines indicate the mean difference between z-scores and its 95% confidence interval (limits of agreement).