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Could Greater Physical Activity Reduce Population Prevalence and Socioeconomic Inequalities in Children's Mental Health Problems? A Policy Simulation

Chigogora, S; Pearce, A; Law, C; Viner, R; Chittleborough, C; Griffiths, LJ; Hope, S; (2020) Could Greater Physical Activity Reduce Population Prevalence and Socioeconomic Inequalities in Children's Mental Health Problems? A Policy Simulation. Epidemiology , 31 (1) pp. 115-125. 10.1097/EDE.0000000000001113. Green open access

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Abstract

BACKGROUND: One in four children aged 5-16 years (y) shows signs of mental health problems in the UK; risk is higher in economically disadvantaged groups. Greater physical activity is associated with lower risk of internalizing problems such as depression and anxiety. We simulated the potential impact of population-wide physical activity interventions on overall prevalence of internalizing problems, and by family income. Interventions were based on the World Health Organization (WHO) children's target of 60 minutes (min) of moderate-to-vigorous physical activity per day and trial evidence. METHODS: Data were from the UK Millennium Cohort Study, a population-representative cohort of children born in 2000-2002. Household income (5y) was the exposure; internalizing problems (outcome) were measured using the Strengths and Difficulties Questionnaire (11y). Of 18,296 singletons, 6,497 had accelerometer physical activity data (mediator, manipulated to simulate interventions) at 7y. We predicted probabilities of outcome according to exposure in marginal structural models, weighted for attrition and confounding, and adjusted for observed mediator. We then re-estimated probabilities in different physical activity intervention scenarios, assessing income inequalities in internalizing problems with risk ratios (RRs) and differences (RDs) according to income quintile. RESULTS: Simulating universal achievement of the WHO target led to little change in prevalence (10% [95% CI: 8%,12%]) and socioeconomic inequalities in internalizing problems; RR: 2.2 (1.1, 3.4); RD: 8% [5%,13%]). More modest increases in physical activity achieved weaker results. CONCLUSION: Our simulations suggest that large increases in moderate-to-vigorous physical activity in the UK would have little effect on prevalence and inequalities in child mental health problems.

Type: Article
Title: Could Greater Physical Activity Reduce Population Prevalence and Socioeconomic Inequalities in Children's Mental Health Problems? A Policy Simulation
Location: United States
Open access status: An open access version is available from UCL Discovery
DOI: 10.1097/EDE.0000000000001113
Publisher version: https://doi.org/10.1097/EDE.0000000000001113
Language: English
Additional information: Copyright © 2019 The Author(s). Published by Wolters Kluwer Health, Inc. This is an open access article distributed under the Creative Commons Attribution License 4.0 (CCBY), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Keywords: child, mental health, anxiety, depression, physical activity, health inequalities
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > UCL GOS Institute of Child Health
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > UCL GOS Institute of Child Health > Population, Policy and Practice Dept
URI: https://discovery.ucl.ac.uk/id/eprint/10083175
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