The Egyptian Journal of Bronchology

Table 3 OSA prevalence in COPD

From: Prevalence of obstructive sleep apnea among patients with chronic obstructive pulmonary disease

	COPD severity						Total (N = 100)		χ²	P
	Mild (N = 22)		Moderate (N = 53)		Severe (N = 25)		Total (N = 100)
	N	%	N	%	N	%	N	%
OSA	7	31.8%	22	41.5%	21	84%	50	50%	20.5	< 0.001**

COPD chronic obstructive pulmonary diseases, OSA obstructive sleep apnea
**Highly significant

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