Prevalence and correlates of screen time in youth: an international perspective.
American Journal of Preventive Medicine 2014 ; 47: 803-7.
Atkin AJ, Sharp SJ, Corder K, Van Sluijs EM, and International Childrens Accelerometry Database (ICAD) Collaborators
PubMed ID : 25241193
Screen time (including TV viewing/computer use) may be adversely associated with metabolic and mental health in children.
To describe the prevalence and sociodemographic correlates of screen time in an international sample of children aged 4-17 years.
Data from the International Children's Accelerometry Database were collected between 1997-2009 and analyzed in 2013. Participants were 11,434 children (48.9% boys; mean [SD] age at first assessment, 11.7 [3.2] years). Exposures were sex, age, weight status, maternal education, and ethnicity. The outcome was self- or proxy-reported screen time <2 or >2 hours/day. Analyses were conducted initially at study level and then combined using random-effects meta-analysis.
Within each contributing study, at least two thirds of participants exceeded 2 hours/day of screen time. In meta-analytic models, overweight or obese children were more likely to exceed 2 hours/day of screen time than those who were non-overweight (OR=1.58, 95% CI=1.33,1.88). Girls (vs boys: 0.65; 0.54, 0.78) and participants with more highly educated mothers (vs