Panic disorder and suicidality: is comorbidity with depression the key?

Area of Science:

• Psychiatry and Mental Health
• Clinical Psychology
• Behavioral Science

Background:

• The relationship between panic disorder (PD) and suicidal behavior is controversial.
• Previous research suggests a link between PD and suicidality, with comorbid depression often cited as a potential confounder.

Purpose of the Study:

• To investigate the association between panic disorder and suicidal behavior in a psychiatric outpatient sample.
• To determine the role of comorbid depressive disorders in this relationship.

Main Methods:

• Structured interviews were used to assess psychopathology, personality traits, and suicidal behavior in 474 psychiatric outpatients.
• Participants were evaluated for Axis I and II disorders.

Main Results:

• Approximately 52% of the sample reported suicidal ideation, and 42% had a history of suicide attempts.
• When controlling for depressive disorders, patients with panic disorder only showed significantly fewer suicide attempts compared to those with depressive disorder or comorbid panic disorder and depressive disorder.
• No significant differences in suicidal ideation, intent, lethality, impulsivity, aggression, or anxiety were found between panic disorder, depressive disorder, and comorbid panic disorder-depressive disorder groups.

Conclusions:

• The association between panic disorder and suicidal behavior in this sample is largely explained by the presence of comorbid depressive disorders.
• Physicians should consider comorbid depression when assessing suicidality in patients with panic disorder.
• Limitations include the cross-sectional design, small PD-only group, and potential recall bias.