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Research Letter
August 26, 2019

Prevalence and Correlates of Meeting Sleep, Screen-Time, and Physical Activity Guidelines Among Adolescents in the United Kingdom

Author Affiliations
  • 1School of Sport, Exercise & Health Sciences, Loughborough University, Loughborough, Leicestershire, United Kingdom
  • 2Institute of Sport Exercise & Health, Division of Surgery & Interventional Science, Faculty of Medical Sciences, University College London, London, United Kingdom
JAMA Pediatr. 2019;173(10):993-994. doi:10.1001/jamapediatrics.2019.2822

There is convincing evidence that modifiable lifestyle behaviors, such as sleep, moderate to vigorous physical activity (MVPA), and screen time (ST), are associated with physical, social, and mental health outcomes in adolescents.1 However, much of this evidence comes from studies examining behaviors independently. There is growing interest in the importance of combinations of these behaviors because of their potential synergistic effects on health.2 To improve the health of adolescents, it is necessary to better understand the determinants of combinations of behaviors. There are few nationally representative data on the prevalence of meeting combinations of recommendations for sleep, ST, and MVPA,3 and little is known about the associated contextual factors.4

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