Childhood abuse and community violence: Risk factors for youth violence

To investigate the joint effect of child abuse and neglect (CAN) and community violence (CV) on adolescents with peers that commit youth violence (YV).

This is a school-based cross-sectional study of 699 students enrolled in four public and nine private schools in the municipality of Rio de Janeiro, Brazil. Participants were selected through a complex cluster sampling procedure. CAN was identified using the Childhood Trauma Questionnaire (CTQ). Exposure to CV was assessed by asking students if they have witnessed cases of lethal violence in the community. YV was measured indirectly through questions about having friends who have committed acts of crime. Multivariate logistic models were used to study the effects of emotional, physical, and sexual abuse and emotional and physical neglect in childhood on YV, controlled for confounders, according to different levels of CV.

Emotional abuse OR = 3.32 (CI 95%: 1.79-6.17), sexual abuse OR = 2.33 (CI 95%: 1.20-4.54), and physical neglect OR = 1.81 (CI 95%: 1.02-3.20) increased the odds of YV in adolescents, whether cooccurring with CV or not. Physical abuse OR = 3.95 (CI 95%: 2.29 - 6.80) and emotional neglect OR = 2.93 (CI 95%: 1.83-4.72) are only risk factors for YV involvement when associated with CV.

These findings highlight the relevance of CAN and CV as risk factors for YV and the potential increase in adolescents' vulnerability when exposed to both. Policies aiming at preventing and dealing with CAN are essential strategies to reduce YV, especially in areas with high levels of CV.