Key Takeaway:
Lifetime suicide attempt history was linked to higher initial depressive symptoms and greater increases in the symptoms. Preventive intervention prior to the developmental period in which suicidal thoughts and behaviors are highest is expected to prevent suicide.

We examined links between adolescent problem trajectories and suicide risk outcomes. Depressive symptoms (self-report) and externalizing behaviors (parent report) were assessed from grades 5 to 10. Lifetime suicide attempt history, assessed to age 25, was linked to higher initial depressive symptoms and greater increases in the symptoms, and also to higher increases in externalizing behaviors. Preventive intervention prior to the developmental period in which suicidal thoughts and behaviors are highest is expected to prevent suicide.

Citation

Kerr, D., Reinke, W., & Eddy, J. M. (2013). Trajectories of depressive symptoms and externalizing behaviors across adolescence: Associations with histories of suicide attempt and ideation in early adulthood. Suicide and Life-Threatening Behavior, 43 (1), 50-67.