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ROC analysis of the logBNP levels for determining the incidence of clinical compound endpoint events in all the patients (AUC, 0.6752; standard error, 0.01698; 95% confidence interval, 0.64198–0.70835). The cut-off value was determined to be 100 pg/ml (specificity, 70.16%; sensitivity, 57.44%). ROC, receiver operating characteristic; BNP, brain natriuretic peptide; AUC, area under curve.
