From: Sleep quality in stable chronic obstructive pulmonary disease patients in Zagazig University Hospitals, Egypt
COPD patients with poor sleep quality (nā=ā40)
No.
%
Obstructive sleep apnea hypopnea syndrome (OSAHS)
26
65%
Central sleep apnea hypopnea syndrome (CSAHS)
2
5%
Nocturnal hypoventilation
5
13%
Nocturnal oxygen desaturation
7
17%