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Sleep and physical functioning in family caregivers of older adults with memory impairment

  • Adam P. Spira (a1), Leah Friedman (a2), Sherry A. Beaudreau (a2) (a3), Sonia Ancoli-Israel (a4), Beatriz Hernandez (a3), Javaid Sheikh (a3) and Jerome Yesavage (a2) (a3)...

Abstract

Background: Sleep disturbance is common in caregivers of older adults with memory disorders. Little is known, however, about the implications of caregivers’ poor sleep with regard to their physical functioning.

Methods: In this cross-sectional study, we investigated the association between objectively measured sleep and self-reported physical functioning in 45 caregivers (mean age = 68.6 years) who completed the Beck Depression Inventory-II, the Medical Outcomes Study SF-36, and the Mini-mental State Examination, and wore an actigraph for at least three days. Our primary predictors were actigraphic sleep parameters, and our outcome was the SF-36 Physical Functioning subscale.

Results: In multivariate-adjusted linear regression analyses, each 30-minute increase in caregivers’ total sleep time was associated with a 2.2-point improvement in their Physical Functioning subscale scores (unstandardized regression coefficient (B) = 2.2, 95% confidence interval (CI) 1.0–3.4, p = 0.001). In addition, each 10-minute increase in time awake after initial sleep onset was associated with a 0.5-point decrease on the Physical Functioning subscale, although this was not statistically significant (B = −0.5, 95% CI −1.1, 0.1, p = 0.09).

Conclusions: Our findings suggest that shorter sleep duration is associated with worse self-reported physical functioning in caregivers. Longitudinal studies are needed to determine whether poor sleep predicts functional decline in caregivers.

Copyright

Corresponding author

Correspondence should be addressed to: Adam P. Spira, Ph.D., Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, 624 N. Broadway, Hampton House, Rm. 794, Baltimore, MD 21205, U.S.A. Phone: +1 (410) 614–9498; Fax: +1 (410) 614–7469. Email: aspira@jhsph.edu.

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Keywords

Sleep and physical functioning in family caregivers of older adults with memory impairment

  • Adam P. Spira (a1), Leah Friedman (a2), Sherry A. Beaudreau (a2) (a3), Sonia Ancoli-Israel (a4), Beatriz Hernandez (a3), Javaid Sheikh (a3) and Jerome Yesavage (a2) (a3)...

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