Associations between peer victimization and suicidal ideation and suicide attempt during adolescence: Results from a prospective population-based birth cohort.

Objective To test whether adolescents who are victimized by peers are at heightened risk for suicidal ideation and suicide attempt, using both cross-sectional and prospective investigations. Victims reported concurrently higher rates of suicidal ideation at age 13 (11.6 to 14.7%) and suicide attempt at age 15 (5.4 to 6.8%) compared to those who had not been victimized (2.7 to 4.1% for suicidal ideation and 1.6 to 1.9% for suicide attempt). Being victimized by peers at 13 years predicted suicidal ideation (odds ratio OR=2.27; 95% CI, 1.25 to 4.12) and suicide attempt (OR=3.05, 1.36 to 6.82) 2 years later, even after adjusting for baseline suicidality and mental health problems and a series of confounders (socioeconomic status, intelligence, family’s functioning and structure, hostile-reactive parenting, maternal lifetime suicidal ideation/suicide attempt). Those who were victimized at both 13 and 15 years had the highest risk of suicidal ideation (OR=5.41, 2.53 to 11.53) and suicide attempt (OR=5.85, 2.12 to 16.18) at 15 years.

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