Table 4.

Predictive power of SVRI for different cut-off points in noncardiogenic group.

SVRI value	Sensitivity	Specificity	LR+	LR−	Youden index
533	0.15	1.0	—	0.85	0.15
591	0.15	0.938	2.4	0.907	0.0875
1093	0.7	0.937	11.2	0.32	0.6375
1115	0.7	0.875	5.6	0.347	0.575
1167∗	0.85	0.875	6.8	0.171	0.725
1351	0.85	0.75	3.4	0.2	0.6
1362	0.9	0.75	3.6	0.133	0.65
1371	0.9	0.687	2.88	0.145	0.5875
1394	0.95	0.687	3.04	0.073	0.6375
1460	0.95	0.625	2.533	0.08	0.575
1531	1.0	0.625	2.667	0	0.625

LR⁺: likelihood ratio for a positive test; LR⁻: likelihood ratio for a negative test;

∗: best cut-off point.