Alice Jessie Clark1, Paula Salo2, Theis Lange3, Poul Jennum4, Marianna Virtanen5, Jaana Pentti6, Mika Kivimäki7, Jussi Vahtera8, Naja Hulvej Rod9. 1. Section of Social Medicine, Department of Public Health, and Copenhagen Stress Research Center, University of Copenhagen, Copenhagen, Denmark, alcl@sund.ku.dk. 2. Finnish Institute of Occupational Health, Turku, Finland, Department of Psychology, University of Turku, Turku, Finland. 3. Section of Biostatistics, Department of Public Health, University of Copenhagen, Copenhagen, Denmark. 4. Danish Center for Sleep Medicine, Department of Clinical Neurophysiology, Glostrup University Hospital, Copenhagen, Denmark, Center for Healthy Aging, University of Copenhagen, Copenhagen, Denmark. 5. Finnish Institute of Occupational Health, Helsinki, Finland. 6. Finnish Institute of Occupational Health, Turku, Finland. 7. Finnish Institute of Occupational Health, Helsinki, Finland, Department of Epidemiology and Public Health, University College London, London, UK and. 8. Finnish Institute of Occupational Health, Turku, Finland, Department of Public Health, University of Turku and Turku University Hospital, Turku, Finland. 9. Section of Social Medicine, Department of Public Health, and Copenhagen Stress Research Center, University of Copenhagen, Copenhagen, Denmark.
Abstract
BACKGROUND: Changes in health-related behaviour may be a key mechanism linking impaired sleep to poor health, but evidence on this is limited. In this study, we analysed observational data to determine whether onset of impaired sleep is followed by changes in health-related behaviours. METHODS: We used data from 37,508 adults from the longitudinal Finnish Public Sector Study. In analysis of 59 152 person-observations on duration and quality of sleep and health-related behaviours (alcohol consumption, smoking, physical activity and weight control), data were treated as a series of non-randomized pseudo-trials with strict predefined criteria for data inclusion and temporality. RESULTS: Smokers who experienced onset of short sleep were less likely to quit smoking than those with persistent normal sleep [odds ratio (OR) = 0.78, 95% confidence interval (CI): 0.64-0.97]. Onset of short sleep also predicted initiating high-risk alcohol consumption (OR = 1.17, 95% CI: 1.00-1.37). Onset of disturbed sleep was associated with changes in all assessed health-related behaviours: initiation of high-risk alcohol consumption (OR = 1.23, 95% CI: 1.05-1.45), quitting smoking (OR = 0.80, 95% CI: 0.63-1.00), becoming physically inactive (OR = 1.17, 95% CI: 1.06-1.30) and becoming overweight or obese (OR = 1.12, 95% CI: 1.01-1.23). CONCLUSIONS: Findings suggest that the onset of short or disturbed sleep are risk factors for adverse changes in health-related behaviours. These findings highlight potential pathways linking impaired sleep to the development of lifestyle-related morbidity and mortality.
BACKGROUND: Changes in health-related behaviour may be a key mechanism linking impaired sleep to poor health, but evidence on this is limited. In this study, we analysed observational data to determine whether onset of impaired sleep is followed by changes in health-related behaviours. METHODS: We used data from 37,508 adults from the longitudinal Finnish Public Sector Study. In analysis of 59 152 person-observations on duration and quality of sleep and health-related behaviours (alcohol consumption, smoking, physical activity and weight control), data were treated as a series of non-randomized pseudo-trials with strict predefined criteria for data inclusion and temporality. RESULTS: Smokers who experienced onset of short sleep were less likely to quit smoking than those with persistent normal sleep [odds ratio (OR) = 0.78, 95% confidence interval (CI): 0.64-0.97]. Onset of short sleep also predicted initiating high-risk alcohol consumption (OR = 1.17, 95% CI: 1.00-1.37). Onset of disturbed sleep was associated with changes in all assessed health-related behaviours: initiation of high-risk alcohol consumption (OR = 1.23, 95% CI: 1.05-1.45), quitting smoking (OR = 0.80, 95% CI: 0.63-1.00), becoming physically inactive (OR = 1.17, 95% CI: 1.06-1.30) and becoming overweight or obese (OR = 1.12, 95% CI: 1.01-1.23). CONCLUSIONS: Findings suggest that the onset of short or disturbed sleep are risk factors for adverse changes in health-related behaviours. These findings highlight potential pathways linking impaired sleep to the development of lifestyle-related morbidity and mortality.
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