Prevalência e fatores associados aos comportamentos sedentários em adolescentes

Abstract

OBJECTIVETo analyze the prevalence of sedentary behavior and associated factors in adolescents.METHODSA cross-sectional study with adolescents aged 10 to 17 years, of both sexes, belonging to a 1994-1999 birth cohort in the city of Cuiabá, MT, Central Western Brazil. Data were collected using a questionnaire containing sociodemographic, economic, lifestyle and anthropometric variables. Sedentary behavior was determined as using television and/or computer/video games for a time greater than or equal to 4 hours/day. Associations with sedentary behavior were evaluated using body mass index in childhood and adolescence and sociodemographic and behavioral variables using hierarchical logistic regression.RESULTSThe overall prevalence of sedentary behavior was 58.1%. Of the 1,716 adolescents evaluated, 50.7% (n = 870) were male. In multivariate analysis, after adjustment for confounding factors, the variables that remained associated with sedentary behavior were: age (14 and over) (OR = 3.51, 95%CI 2.19;5.60); higher socioeconomic class (OR = 3.83, 95%CI 2.10;7.01), higher level of maternal education (OR = 1.81, 95%CI 1.09;3.01); living in the country (OR = 0.49, 95%CI 0.30;0.81); insufficient physical activity (OR = 1.25, 95%CI 1.02;1.53); experimentation with alcoholic beverages (OR = 1.34, 95%CI 1.08;1.66) and being overweight in adolescence (OR = 1.33, 95%CI 1.06;1.68).CONCLUSIONSThe high proportion of adolescents in sedentary activities and the lack of association with being overweight in childhood, indicates the need for educational initiatives to reduce multiple risk behaviors. Encouraging physical activity in young people as a way of reducing sedentary behavior and, consequently, being overweight is fundamental.

Factors Associated with Excess Weight in a Sample Population of School Adolescents

“…In this study, adolescents with excess weight had OR aj 1.27 (CI 95% : 1.03 to 1.58) more likely to perceive their health unsatisfactorily. These results are similar to those found in other studies 25,26 . Excess weight is associated with various adverse health outcomes caused by physical, social and emotional problems 27 .…”

“…In tropical countries like Brazil, teens who deviate from the socially determined "standard", are more vulnerable to dissatisfaction with their body shape, perceiving themselves as having a poor quality of health 25 .…”

“…This positive association between overweight, private school and higher socioeconomic classes is apparently supported by these adolescents in the greater access to hypercaloric foods and sedentary behaviors 25 . In this study, adolescents with excess weight had OR aj 1.27 (CI 95% : 1.03 to 1.58) more likely to perceive their health unsatisfactorily.…”

<b>Fatores de Risco Cardiovascular e Medidas Antropométricas em Crianças e Adolescentes / Cardiovascular Risk Factors and Anthropometric Measures in Children and Adolescents<b>

“…As várias modificações do padrão de vida da população moderna, incluindo crianças e adolescentes, influenciadas diretamente pelos avanços tecnológicos ocorridos nos últimos anos, contribuíram para a ampliação da inatividade física e o aumento do peso corporal e, consequentemente, para o surgimento de Doenças Crônicas Não Transmissíveis (DCNT) (1)(2) . O sobrepeso e a obesidade vêm sendo apontados como importantes elementos na gênese dessas doenças, em curto ou longo prazo, pois o acúmulo de gordura corporal não se apresenta isoladamente, mas como fator predisponente para o aparecimento de outras morbidades, como a Hipertensão Arterial Sistêmica (HAS)e dislipidemias (3) .…”

Trends in television and computer/videogame use and total screen time in high school students from Caruaru city, Pernambuco, Brazil: A repeated panel study between 2007 and 2012

“…Previous studies in Brazil have reported differences in sedentary behavior between genders [20][21][22] , while others have not identified significant differences [23][24] . Moreover, the few studies in Brazil that examined the use of other types of media have yielded mixed results.…”