Navegando por Autor "Xavier, Cesar Coelho"
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Item Associations of the perceived neighborhood environment and screen time in adolescents living in a medium-sized city in Brazil : a cross-sectional study.(2019) Parajára, Magda do Carmo; Andrade, Amanda Cristina de Souza; Xavier, Cesar Coelho; Proietti, Fernando Augusto; Meireles, Adriana LúciaIndividual attributes have been investigated to explain sedentary behavior. However, few studies have evaluated this association at the neighborhood level. This study aimed to determine the association between screen time (ST) among adolescents and perceived neighborhood characteristics. This cross-sectional study was conducted using a multistage household survey in Vespasiano, Brazil, in 2015–2016. Logistic regression analyses were performed to assess the associations between the adolescent self-reported ST (television, computer, and video game > 2 h/day) and neighborhood characteristics (green space, sidewalk maintenance, street lighting, social disorder, safety during the day, and risk of violence) reported by an adult. Four hundred and twenty-three adolescents aged 11–17 participated in the study. ST was reported by 74.0% of the adolescents. After adjustment for confounder variables, neighborhood characteristics did not remain associated with ST. The results evidence no associations between ST among adolescents and perceived neighborhood environment and indicate the need for future studies of this relation.Item The influence of neighborhood social capital on leisure-time physical activity : a population-based study in Brazil.(2018) Rodrigues, Daiana Elias; César, Cibele Comini; Kawachi, Ichiro; Xavier, Cesar Coelho; Caiaffa, Waleska Teixeira; Proietti, Fernando AugustoEnvironmentally targeted approaches to promote physical activity are emerging in recent years as a complementary strategy to the traditional individual approaches. This study explored the relation between community social capital and leisure-time physical activity in an adult population-based sample in Brazil. We applied a generalized estimating equation approach to analyze a cross-sectional survey of 3667 adults living in 149 neighborhoods. Social capital was assessed by scales that measured collective efficacy and social cohesion in the neighborhood. We find that individuals living in areas with higher level of social cohesion were more likely to be physically active even after controlling for potentially confounding individual and area-level covariates (PR = 1.56; 95% CI = 1.13, 2.16). Collective efficacy was not significantly associated with leisure-time physical activity. Interventions to strengthen social cohesion in the community may be an avenue for promoting physical activity.