TABLE 3.

Univariate ROC Curve Analysis for Identification of High-Risk CAD on Angiography

Parameter	c-index (95% CI)	P	Best cutoff value	Sensitivity	Specificity
Clinical risk score	0.589 (0.510–0.669)	0.04	25%	0.87	0.29
SSS (% of LV volume)	0.681 (0.601–0.761)	<0.0001	10.2%	0.75	0.51
TID index	0.642 (0.557–0.726)	0.001	1.07	0.71	0.52
ΔLVEF	0.604 (0.518–0.689)	0.022	2.0%	0.58	0.60
Segments with CFR of <1.5	0.637 (0.561–0.713)	0.002	5.0	0.82	0.41
Global CFR	0.647 (0.572–0.721)	0.001	1.93	0.89	0.36

CI = confidence interval; SSS = summed stress score; LV = left ventricular.