Please click here to obtain permission to reproduce this image.
Click on image to view larger version.

Figure 1 Brain natriuretic peptide (BNP) and N-terminal BNP (N-BNP) values by five different assays in 135 subjects without heart failure (open bars) and 70 patients with heart failure (striped bars). Values were significantly higher by all assays for those with heart failure (p < 0.001 for all). Biosite = Biosite point-of-care BNP assay; Clinical = local clinical BNP assay; Research = local research BNP assay; Roche = Roche N-BNP assay; Local = local N-BNP assay. Bars indicate median value and interquartile range, lines represent 10th and 90th percentile values, dots represent outlying values.
|