High Order Statistics and Time-Frequency Domain to Classify Heart Sounds for Subjects under Cardiac Stress Test

Table 2

Significance values (Mann-Whitney test), range (min and max), and the area under curve (AUC) results obtained for all subjects and for each proposed feature.

Feature	value	Range (S1)	Range (S2)	AUC
	<0.0001	0.5–2	0.5–0.92	0.85
	<0.0001	0.3–1	0.13–0.88	0.87
	<0.0001	1–7.8	2–19.2	0.96