Exploiting temporal and nonstationary features in breathing sound analysis for multiple obstructive sleep apnea severity classification

Table 5 Method comparison between related studies using snoring sounds

Method	Subjects	Microphone’s location	Number of OSA groups	Sensitivity	Specificity
Method	Subjects	Microphone’s location	Number of OSA groups	Accuracy (%)
Nakano [7]	383	Neck (contact)	Two	93	67
Abeyrantne [8]	16	Patient vicinity (40–70 cm)	Two	100	50
Azarbarzin [12]	57	Neck (contact)	Two	92.9	100
Azarbarzin [12]	57	Neck (contact)	Four	77.2
Behar [13]	856	Face (contact)	Two	69.5	83.7
Proposed	83	Patient vicinity (170 cm)	Two	98.0	75.0
Proposed	83	Patient vicinity (170 cm)	Four	79.52

ISSN: 1475-925X