Depression and exposure to suicide predict suicide attempt.

Area of Science:

• Psychiatry
• Public Health
• Epidemiology

Background:

• Adolescent suicide is a major public health concern.
• Understanding risk factors like depression and exposure to suicidal behavior is critical for prevention.

Purpose of the Study:

• To investigate depression and exposure to peer or family suicide as risk factors for adolescent suicide attempts.
• To examine the interaction between depression and exposure to suicidal behavior in predicting suicide attempts.

Main Methods:

• Utilized data from the National Longitudinal Study of Adolescent Health (Add Health).
• Analyzed a nationally representative sample of 4,719 U.S. high school students.
• Controlled for previous suicide attempts, depression, and exposure to suicide in analyses.

Main Results:

• Previous suicide attempts were the strongest predictor of future attempts (RR=3.3).
• Exposure to suicide (RR=3.2) and severe depression (RR=3.2) posed significant risks.
• No interaction was found between depression and exposure to suicide; both independently increased risk.

Conclusions:

• Exposure to suicidal behavior among peers or family is a significant risk factor for adolescent suicide attempts.
• This risk is comparable to that of severe depression.
• Public health and clinical interventions should address both depression and exposure to suicidal behavior.