Not all risk factors are equal: Personality functioning and self-injury in adolescent suicidality

Area of Science:

• Psychiatry
• Clinical Psychology
• Developmental Psychology

Background:

• Adolescent suicidality is linked to personality pathology and childhood trauma.
• Factors differentiating suicidal ideation from suicide attempts in adolescents require further clarification.

Purpose of the Study:

• To investigate the distinct roles of personality functioning, identity diffusion, childhood trauma, and non-suicidal self-injury in adolescent suicidality.
• To identify specific correlates of suicidal ideation versus suicide attempts in a clinical adolescent sample.

Main Methods:

• A clinical inpatient sample of 570 adolescents was assessed using structured interviews and questionnaires.
• Evaluated personality functioning (ICD-11), identity diffusion, childhood trauma, non-suicidal self-injury, and personality disorders (ICD-10).
• Logistic regression analyses examined factors contributing to suicidal status (attempts vs. ideation vs. no suicidal symptoms).

Main Results:

• Adolescents with suicidal symptoms exhibited higher personality impairments, identity diffusion, childhood trauma, and personality disorder prevalence.
• No significant differences were found between adolescents with suicidal ideation only and those with suicide attempts regarding these factors.
• Non-suicidal self-injury was most prevalent in suicide attempters and was the strongest independent predictor of suicidal status (OR = 2.84).

Conclusions:

• Personality functioning impairments and childhood trauma are general risk factors for adolescent suicidality.
• Non-suicidal self-injury appears more closely linked to suicide attempts than ideation alone.
• Interventions targeting non-suicidal self-injury may be crucial for preventing suicide attempts in at-risk adolescents.