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Revista de Nutrição

versão On-line ISSN 1678-9865

Resumo

PINHO, Maria Gabriela Matias de; ADAMI, Fernando; BENEDET, Jucemar  e  VASCONCELOS, Francisco de Assis Guedes de. Association between screen time and dietary patterns and overweight/obesity among adolescents. Rev. Nutr. [online]. 2017, vol.30, n.3, pp.377-389. ISSN 1678-9865.  http://dx.doi.org/10.1590/1678-98652017000300010.

Objective

The association between screen time and dietary patterns and overweight/obesity among adolescents was analysed in this study.

Methods

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.

Results

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.

Conclusion

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.

Palavras-chave : Adolescents; Food behavior; Obesity; Overweight.

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