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- Title
Association Between Sleep and Physical Function in Older Veterans in an Adult Day Healthcare Program.
- Authors
Song, Yeonsu; Dzierzewski, Joseph M.; Fung, Constance H.; Rodriguez, Juan C.; Jouldjian, Stella; Mitchell, Michael N.; Josephson, Karen R.; Alessi, Cathy A.; Martin, Jennifer L.
- Abstract
Objectives To examine whether sleep disturbance is associated with poor physical function in older veterans in an adult day healthcare ( ADHC) program. Design Cross-sectional. Setting One ADHC program in a Veterans Affairs Ambulatory Care Center. Participants Older veterans (N = 50) enrolled in a randomized controlled trial of a sleep intervention program who had complete baseline data. Measurements Information on participant characteristics (e.g., age, depression, relationship to caregiver, pain, comorbidity) was collected using appropriate questionnaires. Physical function was measured using activity of daily living ( ADL) and instrumental ADL ( IADL) total scores from the Older Americans Resources and Services Multidimensional Functional Assessment Questionnaire. Sleep was assessed subjectively (Pittsburgh Sleep Quality Index, Insomnia Severity Index) and objectively (wrist actigraphy). Results Participants required substantial assistance with ADLs and IADLs. A regression model showed that participant characteristics (marital status, use of sleep medication, comorbidity, posttraumatic stress disorder) and living arrangement (living with a spouse or others) were significantly associated with poor physical function. Poorer objective sleep (total sleep time, total numbers of awakenings, total wake time) was significantly associated with poor physical function, accounting for a significant proportion of the variance other than participant characteristics. Conclusion Objective measures of nighttime sleep disturbance were associated with poor physical function in older veterans in an ADHC program. Further research is needed to determine whether interventions to improve sleep will delay functional decline in this vulnerable population.
- Subjects
UNITED States; SLEEP; ACTIGRAPHY; ANALYSIS of variance; STATISTICAL correlation; VETERANS; QUESTIONNAIRES; REGRESSION analysis; STATISTICAL sampling; T-test (Statistics); ACTIVITIES of daily living; SECONDARY analysis; RANDOMIZED controlled trials; ADULT day care; DATA analysis software; FUNCTIONAL assessment; DESCRIPTIVE statistics
- Publication
Journal of the American Geriatrics Society, 2015, Vol 63, Issue 8, p1622
- ISSN
0002-8614
- Publication type
Article
- DOI
10.1111/jgs.13527