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Combined receiver-operating characteristic (ROC) curves for brain natriuretic peptide (BNP) and galectin-3 for prediction of death or HF readmission in patients with HF after 18 months of follow-up. The ROC analysis for BNP showed an area under the curve (AUC) of 0.65 (P < 0.001); for galectin-3 the AUC is 0.67 (P = 0.004). The ROC analysis for the combination of BNP and galectin-3 shows an AUC of 0.69 (P < 0.05 versus BNP or galectin-3 alone).
