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Chronic Stress is Prospectively Associated with Sleep in Midlife Women: The SWAN Sleep Study
- Publication Year :
- 2015
- Publisher :
- Associated Professional Sleep Societies, LLC, 2015.
-
Abstract
- Study objectives Evaluate whether levels of upsetting life events measured over a 9-y period prospectively predict subjective and objective sleep outcomes in midlife women. Design Prospective cohort study. Setting Four sites across the United States. Participants 330 women (46-57 y of age) enrolled in the Study of Women's Health Across the Nation (SWAN) Sleep Study. Interventions N/A. Measurements and results Upsetting life events were assessed annually for up to 9 y. Trajectory analysis applied to life events data quantitatively identified three distinct chronic stress groups: low stress, moderate stress, and high stress. Sleep was assessed by self-report and in-home polysomnography (PSG) during the ninth year of the study. Multivariate analyses tested the prospective association between chronic stress group and sleep, adjusting for race, baseline sleep complaints, marital status, body mass index, symptoms of depression, and acute life events at the time of the Sleep Study. Women characterized by high chronic stress had lower subjective sleep quality, were more likely to report insomnia, and exhibited increased PSG-assessed wake after sleep onset (WASO) relative to women with low to moderate chronic stress profiles. The effect of chronic stress group on WASO persisted in the subsample of participants without baseline sleep complaints. Conclusions Chronic stress is prospectively associated with sleep disturbance in midlife women, even after adjusting for acute stressors at the time of the sleep study and other factors known to disrupt sleep. These results are consistent with current models of stress that emphasize the cumulative effect of stressors on health over time.
- Subjects :
- Sleep Wake Disorders
medicine.medical_specialty
Polysomnography
Chronic Stress and Sleep in Midlife Women
Developmental psychology
Cohort Studies
Physiology (medical)
Sleep Initiation and Maintenance Disorders
Insomnia
Medicine
Humans
Chronic stress
Sleep study
Prospective Studies
Sleep disorder
medicine.diagnostic_test
business.industry
Middle Aged
medicine.disease
Health Surveys
United States
Chronic Disease
Physical therapy
Women's Health
Female
Neurology (clinical)
Self Report
Sleep onset
medicine.symptom
business
Sleep
Stress, Psychological
Cohort study
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....699123dc86dbba3814345e89574ba3f0