The percentage of adolescents exposed to health risk behaviors was high, especially when simultaneous exposure to different behaviors was considered. These results can contribute to developing health promotion campaigns for the school setting that are specifically aimed at the risk subgroups identified.
OBJETIVO: Este estudo teve como objetivo determinar a associação do índice de massa corporal (IMC) com os níveis de atividade física (AF) e comportamentos sedentários (assistir TV, usar computador ou jogar videogames) em adolescentes de escolas públicas do Estado de Santa Catarina (15-19 anos; n = 5.028). MÉTODOS: As informações foram coletadas por meio de questionário desenvolvido e validado para adolescentes. Foram considerados insuficientemente ativos, os jovens que não acumulavam pelo menos 300 minutos/semana de atividades físicas moderadas ou vigorosas. Considerou-se para o uso excessivo de TV e computador/games um tempo > 2 horas/dia; para excesso de peso corporal, utilizou-se a tabela internacional de IMC para adolescentes. RESULTADOS: O excesso de peso corporal foi mais prevalente entre os rapazes (12,7% vs 7,9%, p<0,001), e houve uma maior proporção de moças insuficientemente ativas (37,0% vs 21,0%, p<0,001). A chance de ter excesso de peso corporal foi 74% maior entre os rapazes pouco ativos em comparação com os ativos, e entre as moças de menor renda familiar (OR=1,85) e as que residiam na zona urbana (OR=2,22). A chance de serem menos ativos foi 43% maior entre os rapazes que assistiam mais TV e 73% maior para aqueles com excesso de peso corporal. Nas moças, a chance de pouca atividade física foi 54% maior entre as que trabalhavam. CONCLUSÕES: a prevalência de excesso de peso corporal foi maior entre os rapazes, mesmo sendo mais ativos do que as moças. Nos rapazes, o excesso de peso estava significativamente associado à menor prática de atividade física e, nas moças, à menor renda familiar e local de moradia.
RESUMOObjetivo: Identificar a prevalência e os fatores associados à autopercepção negativa de saúde em adolescentes catarinenses.Métodos: Foi realizado um estudo de delineamento transversal com adolescentes do ensino médio das escolas públicas do Estado de Santa Catarina (n=5.028). A autopercepção negativa de saúde foi analisada em função das variáveis: sexo, renda familiar, prática de atividade física, tabagismo, etilismo, drogas ilícitas e autopercepção de estresse. Aplicouse a regressão logística binária para medidas de associação.Resultados: A prevalência de autopercepção negativa de saúde foi maior nas moças (17,6%) em relação aos rapazes (9,6%; p<0,0001). Valores superiores de Odds Ratio (OR) foram observados para as moças (OR 1,99; IC95% 1,66-2,38), adolescentes pertencentes às famílias de menor renda (OR 1,54; IC95% 1,08-2,20), fumantes (OR 2,00; IC95% 1,35-2,94) e que referiram autopercepção negativa de estresse (OR 3,36; IC95% 2,12).Conclusões: Os adolescentes do sexo feminino, os de menor renda familiar, além dos fumantes e os que perceberam negativamente o estresse apresentaram níveis de autopercepção negativa de saúde superiores aos dos seus pares.Palavras-chave: nível de saúde; conduta de saúde; adolescente. ABSTRACTObjective: To identify the prevalence and factors associated with negative self-rated health among adolescents in the State of Santa Catarina, Brazil.Methods: A cross-sectional investigation was conducted with a representative sample of 5,028 adolescents who were attending public highschools. The negative self-rated health was analyzed in relation to the following variables: gender, income, physical activity practice, smoking, alcohol consumption, drug use and self-rated stress. The binary logistic regression was carried out to test associations.Results: The prevalence of negative self-rated health was higher among girls (17.6%) in comparison to boys (9.6%; p<0.0001). Higher values of Odds Ratio (OR) were associated with female gender (OR 1.99; 95%CI 1.66-2.38), lower socioeconomic status (OR 1.54; 95%CI 1.08-2.20), smoking (OR 2.00; 95%CI 1.35-2.94), and negative self-rated stress (OR 3.36;.Conclusions: Female adolescents, those with lower socioeconomic status, smokers and those who negatively perceived stress presented higher levels of negative self-rated health.
The proportion of students taking active trips was higher when going to work than to school. All indicators were associated with the mode of commuting, except gender and place of residence for commuting to work.
PURPOSE: To analyze physical activity and dietary patterns of adolescents and young adults attending evening classes in high schools at two socioeconomic and culturally contrasting Cities in Brazil: Recife (in northern Brazil) and Florianopolis (in southern Brazil). METHODS: This is a cross-sectional analysis (baseline data) of a school-based randomized trial (the Saude na Boa project), including 2,147 students (15-24 years of age; 55.7% females) from 10 schools in each city, pair-matched by size and location. Data were collected by questionnaire. RESULTS: Males were more active than females (p<0.001) in all three physical activity measures in the questionnaire: days/wk of 60+min of moderate-to-vigorous physical activity (MVPA) - males 3.8 d/wk (s=2.3), females 3.2 d/wk (s=2.4); walk/bike to school - males 4.5 d/wk (s=2.4), females 4.1 d/wk (s=2.4); and, strength exercises - males 2.3 d/wk (s=2.5), females 0.8 d/wk (s=1.7). The prevalence of physical inactivity (zero d/wk of 60+ min MVPA) was significantly higher in Recife (p<0.001). Consumption of fruits was significantly higher in Recife than in Florianopolis (p<0.001), but no differences were observed for vegetable (p=0.28) and soda consumption (p=0.09). In general, one out of five students (21.7%) consumed fruits and vegetables <5 d/wk. CONCLUSIONS: Students attending evening classes (public high schools) in Recife tend to be older but are less likely be employed than their counterparts in Florianopolis. Participation in physical education classes was much more prevalent in Florianopolis (87.6% x 19.4% in Recife), especially for females. The prevalence of less than optimal eating habits and insufficient levels of physical activity justify the efforts to promote healthier behaviors in this transitional phase in life.
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