Impaired Sleep Quality in COPD Is Associated With Exacerbations: The CanCOLD Cohort Study.

Shorofsky, M., et al., Chest, 2019.

Key findings:
 Poor sleep quality in individuals with COPD is associated with risk of symptom-based (dyspnea or sputum change ≥ 48 h) and event-based (symptoms plus medication or unscheduled health services use) COPD exacerbations.