Table 6. Duration of coordinated epochs for different AHI groups and sleep stages using abdominal (ABDO) and thoracic (THOR) signals.

	AHI≤15		15<AHI<30		AHI≥30
	ABDO	THOR	ABDO	THOR	ABDO	THOR
Awake	7.6±1.9 s	7.2±4.5 s	7.3±1.9 s	7.2±1.8 s	5.9±2.1 s	6.5±2.1 s
SS1	8.2±2.1 s	7.9±2.3 s	7.9±1.9 s	7.8±2.7 s	5.9±2.5 s	5.7±1.7 s
SS2	8.6±1.6 s	9.1±1.8 s	8.6±2.2 s	8.7±2.4 s	6.3±2.1 s	6.2±2.1 s
SW	9.5±1.8 s	9.7±1.9 s	9.2±2.1 s	9.4±2.4 s	8.1±2.1 s	7.9±2.6 s
REM	7.7±1.8 s	7.5±2.1 s	7.4±1.9 s	7.4±1.8 s	6.1±1.7 s	5.1±1.5 s