Waking Activities and Sleep: Analysis of United Kingdom Adolescents' Daily Time-Use Diaries.

The Journal of Adolescent Health : Official Publication of the Society for Adolescent Medicine
Michael O Mireku

Abstract

To investigate waking activities associated with risks of short and long sleep in a representative cohort of UK adolescents. Data from 14-year-olds participating in the UK Millennium Cohort Study were used. Daily time-use diaries were completed by adolescents on two randomly selected days (one weekday and one weekend) to capture their activities within a 24-hour period from 4 a.m. of each selected day. Short and long sleep duration categories were defined as beyond the extreme lower and upper thresholds of acceptable age-specific sleep durations recommended by the National Sleep Foundation, respectively. Approximately 8% and 6% were short sleepers on weekdays and weekends, respectively. On average, adolescents spent 33% of their time awake per weekend day on recreational digital media activities. Compared with those who had optimal sleep on weekdays, short sleepers spent more time on personal care (mean difference = +56 minutes; 95% confidence interval [CI]: 21; 92) and less time on exercise activities (mean difference = -15 minutes; 95% CI: -27; -3). Ten-minute increase in daily digital media activity was associated with 2% (95% CI: 1.01; 1.03) higher relative risk of adolescents being short sleepers on weekdays. Relative risk...Continue Reading

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Citations

Jul 3, 2021·International Journal of Environmental Research and Public Health·Michael Osei Mireku, Alina Rodriguez

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