Table 3.

Results from receiver operator characteristics curve analyses of the relationship between ventilation dispersion index (VDI) and the final determination of exercise oscillatory ventilation (EOV) among patients with heart failure

Statistic	Data Management of the 32 Indeterminate EOVs
	Excluded from Analysis	Assumed Positive	Assumed Negative
n	210	242	242
AUC (95% CI)	0.890 (0.828, 0.953)	0.852 (0.798, 0.906)	0.860 (0.792, 0.928)
Optimal Cut-Point
VDI	≥0.924	≥0.899	≥0.924
Sensitivity (%)	89	81	89
Specificity (%)	80	78	73

AUC, area under the receiver operator characteristics curve; CI, confidence interval.