Journal of Patient-Reported Outcomes

Table 3 Subgroups data for PSQI, CAS and PHQ-9 score during the first wave of the COVID-19 pandemic

From: Sleep quality and mental health during the COVID-19 pandemic in patients with severe obstructive sleep apnea

	OSA (n = 222)	Controls (n = 164)	P value
PSQI
6–9	107(48%)	46 (28%)	< 0.001
> 10	40 (10%)	20 (12%)	0.1
CAS score
5–9	42 (19%)	32 (19%)	0.8
> 9	22 (9.9%)	8 (4.8%)	0.4
PHQ-9 score
5–9	92 (44%)	60 (36%)	0.4
> 9	44 (19%)	48 (29%)	< 0.05

OSA, obstructive sleep apnea; PSQI, Pittsburg Sleep Quality Index; CAS, Coronavirus Anxiety Scale; PHQ-9, Patient Health Questionnaire module 9

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