Table 1.

Mean comparisons between OSA group and control group on SSC subscales.

	OSA (n = 156)		Control (n = 60)		t	df	P	Cohen’s d
	Mean	SD	Mean	SD
Sleep disorders	9.52	4.99	3.94	2.86	10.11	214	<.001	1.37
Insomnia	8.51	4.39	4.06	3.21	8.21	214	<.002	1.16
Daytime symptoms	7.86	3.82	4.14	2.67	8.14	214	<.003	1.13
Psychological maladjustment	2.70	2.47	0.98	1.51	6.19	214	<.004	0.84

df = degrees of freedom, SD = standard deviation, SSC = Sleep Symptom Checklist.