Depression and anxiety have a larger impact on bullied girls than on boys to experience self-harm and suicidality: A mediation analysis

The mechanism underlying the correlation between bullying victimization, self-harm and suicidality by gender are not well understood. This study, therefore, aimed to investigate whether the mediating effect of mental disorder (depression and anxiety) on the association between bullying victimization, and self-harm and suicidality vary across boys and girls. Overall, 2522 Australian adolescents aged 12–17-year-olds were analyzed from a nationally representative cross-sectional survey: Young Minds Matter. A series of logistic regressions were employed using Baron and Kenny's approach to test the mediating effect of each mental disorder on the relationship between bullying victimization, and self-harm and suicidality across gender. Further, the Sobel test was used to estimate the indirect effect. Out of 784 (31.1%) bullied victims, 53.2% were girls and 46.8% were boys. A higher proportion of girls compared to boys experienced depression, anxiety, self-harm and suicidality (p