Association of after school sedentary behaviour in adolescence with mental wellbeing in adulthood |
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| Institution: | 1. School of Sport, Exercise & Health Sciences, National Centre for Sport & Exercise Medicine, Loughborough University, UK;2. Department of Epidemiology and Public Health, University College London, London, UK;3. NIHR Leicester-Loughborough Diet, Lifestyle and Physical Activity Biomedical Research Unit, Leicester, UK;4. University of Leicester, Diabetes Research Centre, Leicester Diabetes Centre, Leicester General Hospital, UK;5. Population Health Research Institute, St. George''s, University of London, UK;1. MRC Epidemiology Unit and Centre for Diet and Activity Research (CEDAR), School of Clinical Medicine, Institute of Metabolic Science, Cambridge Biomedical Campus, University of Cambridge, Cambridge CB2 0QQ, UK;2. Department of Physical Education, Universidade Estadual Paulista \"Júlio de Mesquita Filho\" (UNESP), Presidente Prudente, Brazil;3. Food & Mood Centre, Centre for Innovation in Mental and Physical Health and Clinical Treatment, School of Medicine, Faculty of Health, Deakin University, Australia;4. Department of Psychological Medicine, Institute of Psychiatry, Psychology and Neuroscience, King''s College London, De Crespigny Park, London SE5 8AF, UK;5. Maudsley NHS Foundation Trust, London, UK |
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| Abstract: | ObjectiveSedentary behaviour is associated with poorer mental health in adolescence but no studies have followed participants into mid-life. We investigated the association between after-school sedentary behaviours (screen time and homework) in adolescence with mental wellbeing in adulthood when participants were aged 42.MethodsParticipants (n = 2038, 59.2% female) were drawn from The 1970 British Cohort Study (BCS70). At age 16 respondents were asked separate questions about how long they spent in three types of screen based activities (TV, video films, computer games) and homework ‘after school yesterday’. Mental well-being and psychological distress were assessed at the age 42 sweep in 2012 using the Warwick-Edinburgh Mental Well-being Scale (WEMWBS) and Malaise Inventory, respectively.ResultsAfter adjustment for all covariates, participants reporting more than 3 h of after school screen time as an adolescent had ? 1.74 (95% CI, ? 2.65, ? 0.83) points on the WEMWBS compared with adults reporting less than 1 h screen time as an adolescent. Participants that reported high screen time both at age 16 (≥ 3 h/d) and age 42 (≥ 3 h/d TV viewing) demonstrated even lower scores (? 2.91; ? 4.12, ? 1.69). Homework was unrelated to wellbeing after adjustment for covariates. The longitudinal association between adolescent screen time and adult psychological distress was attenuated to the null after adjustment for covariates.ConclusionsScreen time in adolescence was inversely associated with mental wellbeing in adulthood. |
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