[Relationship between body dissatisfaction and mental health of Brazilian adolescents: a nationally representative study].

Dissatisfaction with body image is considered a relevant variable in understanding the mental health of adolescents. In this respect, the scope of this study was to evaluate the impact of this dissatisfaction on variables associated with the mental health of Brazilian students enrolled in the 9th year. To achieve this, the data from the 2015 National School Health Survey was used and the methodology applied was based on Propensity Score Matching (PSM).