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Figure 3 Receiver operating characteristic curves for patients with decompensated congestive heart failure compares the sensitivity and specificity of BNP measurements to 30-day readmission rates. Discrete cut-points are labeled. The AUC (C-statistic) was 0.72 for readmission. Sensitivity, specificity, positive and negative predictive values and accuracy are recorded for each cut-point of the receiver operating characteristic curve. AUC = area under the curve; BNP = B-type natriuretic peptide.
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