期刊
SLEEP
卷 38, 期 10, 页码 1645-1654出版社
OXFORD UNIV PRESS INC
DOI: 10.5665/sleep.5066
关键词
EEG; midlife; sleep; stress; women
资金
- National Institutes of Health (NIH), Department of Health and Human Services, through the National Institute on Aging [U01NR004061, U01AG012505, U01AG012535, U01AG012531, U01AG012539, U01AG012546, U01AG012553, U01AG012554, U01AG012495]
- National Institutes of Health (NIH), Department of Health and Human Services, through the National Institute of Nursing Research [U01NR004061, U01AG012505, U01AG012535, U01AG012531, U01AG012539, U01AG012546, U01AG012553, U01AG012554, U01AG012495]
- National Institutes of Health (NIH), Department of Health and Human Services, through the NIH Office of Research on Women's Health [U01NR004061, U01AG012505, U01AG012535, U01AG012531, U01AG012539, U01AG012546, U01AG012553, U01AG012554, U01AG012495]
- National Institute on Aging [AG019360, AG019361, AG019362, AG019363]
- Eisai
- Merck
- Otsuka
- Medscape
- CME Outfitters
- [HL104607]
- [GM113243]
- [MH093605]
- [MH013511]
- [HL093220]
- [UL1TR000005]
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.
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