Research Article

Left Ventricular End-Systolic Volume Is a Reliable Predictor of New-Onset Heart Failure with Preserved Left Ventricular Ejection Fraction

Figure 2

ROC curve of log BNP level for cardiovascular death or hospitalization for new-onset heart failure in patients with preserved LVEF. An optimal cutoff value of log BNP level was indicated by an arrow. Log BNP level of 3.23 pg/ml (BNP level was 25.3 pg/ml) showed 75.0% sensitivity and 68.7% specificity (AUC: 0.753, ). The comparison of the event-free survival curves revealed that the patients with log BNP level > 3.23 pg/ml (in red) had a worse event-free survival compared to those with log BNP level ≤ 3.23 pg/ml (in blue) (log-rank test, ).
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