There Is No Relationship between Chronic Obstructive Pulmonary Disease and Obstructive Sleep Apnea Syndrome: A Population Study

Abstract

COPD in subjects with OSAS was as frequent as in the general population. In the OS group mean arterial blood saturation was lower and time spent in desaturation was longer than in OSAS. The presented data suggest a more severe course of sleep-disordered breathing in subjects with coexisting COPD.