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Sex differences in reported and objectively measured sleep in COPD.
Jenny Theorell-Haglöw1, Inga Sif Ólafsdóttir2, Bryndís Benediktsdóttir3
1Department of Medical Sciences, Respiratory, Allergy and Sleep Research, Uppsala University, Uppsala, Sweden.
International Journal of Chronic Obstructive Pulmonary Disease
|February 13, 2016
Summary
Chronic obstructive pulmonary disease (COPD) is linked to sleep disturbances, particularly in men. Objective measures confirm longer sleep latency in males with COPD compared to controls.
Area of Science:
- Respiratory Medicine
- Sleep Science
- Sex Differences in Health
Background:
- Sleep disturbances are frequently reported in patients with chronic obstructive pulmonary disease (COPD).
- However, the relationship between COPD, sex, and objective sleep parameters requires further investigation.
Purpose of the Study:
- To compare reported and objectively measured sleep in men and women with COPD versus controls.
- To explore sex-specific differences in sleep disturbances associated with COPD.
Main Methods:
- 96 COPD patients and 90 controls underwent sleep questionnaires and ambulatory polysomnography.
- Spirometry and blood sampling were also performed for all participants.
Main Results:
- 51% of COPD patients reported sleep disturbances versus 31% of controls (P=0.008).
- Sleep disturbances were more prevalent in males with COPD; no significant difference was found in females.
- Men with COPD exhibited longer sleep latency (23 vs 9.3 min, P<0.001) than male controls, unlike women.
Conclusions:
- COPD is associated with impaired sleep in men, evidenced by longer sleep latency.
- The association between COPD and sleep disturbances is less clear in women.
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