By Qing Wang, JAMA Network Open, August 4, 2020
Question What is the contribution of childhood peer bullying to the association between intrafamilial aggression exposure and depression symptoms in adulthood?
Findings In this national cross-sectional study of 15 450 respondents 45 years or older in China, being bullied by peers in childhood was a mediator of the association between childhood intrafamilial aggression (eg, parental physical maltreatment and sibling aggression) and adulthood depression symptoms. The contribution of peer bullying to the association was approximately 30%.
Meaning These findings recommend a life-course and integrated mental health policy accounting for intrafamilial aggression and peer bullying in childhood.