OBJECTIVE: To determine differences and similarities in the prevalence of abdominal obesity and its associated factors among adolescents of two economically different Brazilian regions. SUBJECTS AND METHODS: A cross-sectional study was conducted with 1,065 students aged 14 to 17 years, including 601 from the Center West of Santa Catarina, and 464 from the North Minas Gerais. Abdominal obesity was determined by means of the waist circumference measurement. Independent variables included sociodemographic data, body adiposity, and behavior related to physical activity. […]