Association between bullying, childhood adversities and social capital among adolescents.

This study aims to analyze the association between bullying behaviors, adverse childhood experiences and social capital in late adolescence. Secondary school students aged 15-19 of a metropolitan region of Brazil were recruited for a sectional epidemiological survey, with a sample of 2,281 students, stratified by municipality of school location. Descriptive and inferential statistics were performed from three instruments: Olweus Bully/Victim Questionnaire, Childhood Adversity History Questionnaire and Integrated Questionnaire to Measure Social Capital, in adapted versions. The results showed that the factors associated with bullying victims were gender and adversity in childhood. The factors associated to bullying aggressors were gender, childhood adversities, and cognitive social capital. And the factors associated with bullying aggressor-victims were gender, childhood adversities, and cognitive social capital. It is concluded that bullying is associated with adversity in childhood and also with cognitive social capital and they point out the need to address the causes of violence in order to provide a healthy and safe development for children and adolescents, preventing negative outcomes for physical and mental health.