Longitudinal relations of television, electronic games, and digital versatile discs with changes in diet in adolescents

摘要: Background: Youth spend more time with screens than any activity except sleeping. Screen is a risk factor for obesity, possibly because of the influence food and beverage advertising on diet. Objective: We sought to assess longitudinal relations screen [ie, television, electronic games, digital versatile discs (DVDs)/videos, total time] 2-y changes in consumption foods low nutritional quality (FLNQ) that are commonly advertised sugar-sweetened beverages, fast food, sweets, salty snacks, sum these (total FLNQ)] fruit vegetables. Design: With use 2004, 2006, 2008 waves Growing Up Today Study II, which consisted cohort 6002 female 4917 male adolescents aged 9–16 y we assessed (change baseline) relation dietary changes. Regression models included 4604 girls 3668 boys complete diet data ≥2 consecutive questionnaires. Results: Each hour-per-day increase DVDs/videos was associated increased intake FLNQ (range: 0.10–0.28 servings/d; P < 0.05). predicted intakes snacks 0.02–0.06 0.001) decreased vegetables −0.05 −0.02 Greater at baseline (except games boys) subsequent FLNQ, greater DVDs/videos) (P Across sex groups sensitivity analyses, television most consistently changes. Conclusions: Increases were beverages vegetables. Our results caution against excessive media, especially youth.