Association between screen time and metabolic syndrome in children and adolescents in Korea: The 2005 Korean National Health and Nutrition Examination Survey



      To examine the association between screen time and the metabolic syndrome (MetS) in a nationally representative sample of children and adolescents.


      A cross-sectional survey was conducted in 845 children and adolescents (10–18 years of age) from the 2005 Korean National Health and Nutrition Examination Surveys (KNHANES). Screen time was defined as TV time + computer time. The definition of MetS was based on the modified criteria used by the National Cholesterol Education Program-Adult Treatment Panel III, using age- and sex-specific values for some of the criteria.


      In comparison with the children and adolescents in the ST-Q1 (≤16 h for a week), the odds ratio (95% confidence interval) for MetS of subjects in the ST-Q4 (≥35 h for a week) was 2.23 (95% CI, 1.02–4.86) after the adjustment for age, household income, and residence area. Moreover, screen time for a weekend day was also strongly associated with the prevalence of MetS, but not for a weekday.


      Screen time was independently associated with an increased prevalence risk of MetS in children and adolescents in Korea. Public health intervention to reduce screen time particularly for a weekend may be needed to prevent pediatric MetS in Korea.


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