Association between screen time and dietary patterns and overweight/obesity among adolescents/Associacao entre tempo de tela e padroes alimentares com sobrepeso/obesidade em adolescentes

The association between screen time and dietary patterns and overweight/obesity among adolescents was analysed in this study. In this cross-sectional study, 963 Brazilian adolescents, aged between 11 and 14 years were evaluated. Body mass index was used to assess overweight/obesity. Dietary patterns and screen time were assessed using qualitative questionnaires. Principal component analysis was used to obtain dietary patterns. Confounder variables were: type of school (public or private), sexual maturation, mother's weight and mother's education. The Chi-square test was used for the crude analysis; for the adjusted analysis was used Poisson regression with sample weighting. Overweight/obesity prevalence was 29.8% and statistically higher among boys (34.7%). Higher screen time prevalence was 39.1%. The dietary patterns obtained were: obesogenic; coffee and dairy products; traditional Brazilian meal; fruit and vegetables; bread and chocolate milk. The dietary pattern that more closely represented student food consumption was the obesogenic pattern. Screen time was not significantly associated with overweight/obesity. The obesogenic pattern (in both sexes), the coffee and dairy products pattern, and the bread and chocolate milk pattern (only in girls), were inversely associated with overweight/obesity. In this study, dietary patterns influenced overweight/obesity, although in some cases, in an inverse way from what expected. A high prevalence of overweight/obesity and a high proportion of screen time activities among the adolescents were observed. Our results indicate a high consumption of unhealthy dietary pattern among adolescents. Analisar a associacao entre tempo de tela e padroes alimentares com sobrepeso/obesidade em adolescentes de Florianopolis, Santa Catarina, Brasil. A prevalência de sobrepeso/obesidade foi de 29,8%, sendo estatisticamente maior nos meninos (34,7%). A prevalência de alto tempo de tela foi de 39,1%. Os padroes alimentares obtidos foram: obesogênico; cafe e produtos lacteos; refeicao tradicional brasileira; frutas e vegetais; pao e achocolatado. O padrao de consumo alimentar que melhor representou o consumo dos adolescentes nessa amostra foi o obesogênico. Nao houve associacao estatisticamente significativa entre tempo de tela e sobrepeso/obesidade. Foram inversamente associados com sobrepeso/obesidade os padroes: obesogênico; cafe e produtos lacteos; e pao e achocolatado (apenas em meninas). Padroes de consumo alimentar influenciaram