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266843 Longitudinal relationship between screen time and consumption of foods commonly advertised among adolescents in the Growing Up Today Study IITuesday, October 30, 2012
Introduction: Foods commonly advertised (FCA) to children include sugar sweetened beverages (SSBs), candy, snack foods, and fast foods. The influence of marketing on diet may partially explain the well-established association between screen time and adiposity. Purpose: To examine the associations between screen time and 1) FCA and 2) fruits and vegetables. Methods: Data were analyzed from three waves of the Growing Up Today Study II, a prospective cohort of adolescents. Food frequency questionnaires were used to calculate servings/day of FCA (sum of SSBs, candy, snacks, and fast food) and fruits and vegetables for 4,650 girls and 3,697 boys. Linear regression was used to estimate the relationship between screen time (baseline and change) and concurrent 2-year change in diet. Models were stratified by gender, included all forms of screen time and adjusted for age, baseline BMI, height, height change, race/ethnicity, menarche, physical activity, neighborhood safety, census tract median income, and frequency of family dinners. Results: Among girls, both baseline and increase in hours/day of watching television and DVDs, as well as increase in internet use were associated with greater 2-year increases in consumption of FCA (p<0.01). Among boys, baseline and increase in hours/day of television, DVDs, and video games and increase in internet use were associated with greater 2-year increases in consumption of FCA (p<0.05). Among boys and girls, greater television and video game use was associated with lower consumption of fruits and vegetables (p<0.05). Conclusion: Screen time is positively associated with consumption of foods commonly advertised and inversely associated with consumption of fruits and vegetables.
Learning Areas:
EpidemiologyPublic health or related organizational policy, standards, or other guidelines Public health or related research Social and behavioral sciences Learning Objectives: Keywords: Nutrition, Media
Presenting author's disclosure statement:
Qualified on the content I am responsible for because: I am a doctoral candidate in Epidemiology and Nutrition who has previously conducted research in the area of childhood obesity. My scientific interests include the relationship between screen time and both adiposity and diet quality. I agree to comply with the American Public Health Association Conflict of Interest and Commercial Support Guidelines, and to disclose to the participants any off-label or experimental uses of a commercial product or service discussed in my presentation.
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