ERICA: leisure-time physical inactivity in Brazilian adolescents.OBJECTIVE To evaluate the prevalence of leisure-time physical inactivity in Brazilian adolescents and their association with geographical and sociodemographic variables.  METHODS The sample was composed by 74,589 adolescents participating in the Study of Cardiovascular Risks in Adolescents (ERICA). 
ERICA
Poisson regression models were used to assess associated factors. 
Poisson regression models