Deslocamento ativo em adolescentes: prevalência e preditores associados ao trajeto casa-escola

The purpose of this study is to describe the prevalence of active commuting among Brazilian adolescents in their route home-school by federal units and country regions, and to determine the predictors related to it. Sample comprised 99,967 adolescents (both sexes, mean age 14.24 years) that had taken part in the Brazilian National Adolescent School-based Health Survey in 2015. For the present study, it was considered information related to active commuting home-school (frequency and duration), socioeconomic status, and security perception at home-school route, which were obtained through questionnaire. Statistical analysis was performed by logistic regression. It was observed that 44.4% of adolescents reported to use the active commuting (go to and from school using bicycle or walking for, at least, five days a week), and the Southwest region showed the highest prevalence of adolescents who use the active commuting (46.4%). Boys (OR = 1.19), younger adolescents (OR = 0.89), and those who spent more weekly time in active commuting (OR = 1.01) are more prone to be adopt the active commuting in their route to and from school; on the other hand, having a car at home (OR = 0.72) and perceive the route to/from school as insecure (OR = 0.66) decrease their chances to adopt this behaviour. Results highlight that active commuting is a multifactorial trait, and the relevance to develop intervention strategies that should take into account both, subjects and the environment.