Sedentary Behaviors

2016 Grade: C


Percentage of children and youth who meet the screen time guideline (<2 hours of recreational screen time per day).

Key Findings
  • 52% of primary school children with a mean age of 7.6 years spent < 2 hours on screen time.
  • 51% of 12- to 23-year-olds spent < 2 hours per day using the Internet.
  • 35.5% of 10- to 19-year-olds spent < 2 hours per day on a smart device activity (e.g., messaging, browsing information, gaming, watching TV/movies, posting information on smartphone / tablet / computer).

  • Huang YW, Wong SHS, He G, et al. Isotemporal substitution analysis for sedentary behavior and body mass index. Med Sci Sports Exerc. 2016;48(11):2135.
  • Chung RTY. Youth Survey on Usage of Internet and Social Network Websites: Public Opinion Programme. The University of Hong Kong. 2010.
  • Kwok SWH, Lee PH, Lee RLT. Smart device use and perceived physical and psychosocial outcomes among Hong Kong adolescents. Int J Environ Res Public Health. 2017;14(2):205.