Built environment and Physical Activity in adolescents: use of the Kernel Density Estimation and the Walkability Index

Was analyzed the association between the distribution density of places for physical activity (PA), walkability and PA of Brazilian adolescents. Was conducted analyses of the Kernel Density Estimation (KDE) and the Binary Logistic Regression to verify the association between the PA with the KDE and with the walkability. Was observed that in 1.200 and 1.600 meters radius adolescents from the quartile 3 and quartile 4 had greater chances of being active, as well as for the walkability in quartile 4. In conclusion, the adolescents that live in locations with better values of KDE and walkability values were more active.