0594 Functional Limitations and Well-Being Throughout the Adult Lifespan: The Moderating Role of Sleep. (25th May 2022)

• Record Type: Journal Article
• Authors: Williams, Claire; Dautovich, Natalie; Dzierzewski, Joseph
• Is Part Of: Sleep. Volume 45(2022)Supplement 1
• Page Start: A261
• Page End: A261
• Publication Date: 2022-05-25
• Subjects: Sleep -- Physiological aspects -- Periodicals; Sleep disorders -- Periodicals; Sommeil -- Aspect physiologique -- Périodiques; Sommeil, Troubles du -- Périodiques; Sleep disorders; Sleep -- Physiological aspects; Sleep -- physiological aspects; Sleep Wake Disorders; Psychophysiology; Electronic journals; Periodicals; 616.8498
• DOI: 10.1093/sleep/zsac079.591
• Languages: English
• ISSNs: 0161-8105

Abstract

Abstract: Introduction: Functional limitations represent individuals' difficulty with completing essential activities of daily living, such as sitting, stooping, and walking. Though functional limitations have been linked to lower well-being outcomes, less is known about potential protective factors for well-being in the lived experience of functional limitations. This study aimed to examine the potential moderating effect of sleep quality on the association between functional limitations and life satisfaction, a common indicator of well-being, across the adult lifespan. Methods: The present study used archival data from the Midlife in the United States Refresher study. Participants included 696 individuals (50.6% female, Mage=51.58 years, SD=13.61 years) who completed measures of functional limitations (Functional Status Questionnaire), global sleep quality (Pittsburg Sleep Quality Index), and life satisfaction (single-item measure). A moderated moderation analysis was conducted to examine the moderating role of sleep quality on the association between functional limitations and life satisfaction. Age was included as a secondary moderator in the analysis to determine differences between age groups (younger, middle-aged, elders). Demographic variables of gender and racial identity were used as covariates in study analyses. Results: Participants' global sleep score was a significant moderator of the association between functional limitation status and life satisfaction (B = 0.16, p < .001). Overall better global sleep quality buffered the association between higher functional limitations and worse life satisfaction. A significant three-way interaction between age, global sleep, and functional limitations was detected (β = -0.003, ΔR2 = .02, F(1, 686) = 12.25, p < .001). The effect of global sleep on the association between life satisfaction and functional limitation status was significant for younger adults (B = 0.07, p < .001) and middle-aged adults (B = 0.02, p = .0224), but not for elders (B = -0.02, p = .2223). Better global sleep quality buffered the negative association between functional limitations and life satisfaction specifically for younger and middle-aged adults. Conclusion: The current study provided evidence for the importance of sleep quality in the lived experience of functional limitations, particularly for younger and middle-aged adults. This study contributes to a rapidly growing body of literature that seeks to identify protective factors for individuals experiencing lower functioning. In the future, clinicians should integrate sleep quality screeners in medical and mental health care settings in order to identify at-risk individuals who are experiencing functional limitations, and potentially consider establishing preventative, education-based interventions concerning sleep in the experience of functional limitations. Support (If Any):