Table 3

Area under the curve (AUC) of M1–M6 on the symptomatic side to diagnose significant trans-stenotic pressure gradient

Method	AUC (95% CI)	YI	Cut-off value	Sensitivity	Specificity
M1	0.81 (0.73 to 0.90)	0.56	0.37	0.98	0.58
M2	0.86 (0.78 to 0.93)	0.63	0.23	0.86	0.76
M3	0.68 (0.58 to 0.79)	0.36	0.34	0.80	0.56
M4	0.69 (0.59 to 0.80)	0.37	0.26	0.77	0.60
M5	0.64 (0.54 to 0.75)	0.26	0.19	0.32	0.95
M6	0.72 (0.62 to 0.82)	0.38	0.31	0.91	0.47

YI, Youden Index .