Post-traumatic stress disorder among adolescents with bipolar disorder and its relationship to suic

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The aims of this cross-sectional pilot study were to ascertain the rates of post-traumatic stress disorder (PTSD) among adolescents with bipolar disorder (BPD) and major depressive disorder (MDD) relative to a comparison group comprised of non-affectively ill patients, and to determine whether PTSD is related to suicidal ideation and attempts. The impetus for the study was born of clinical impressions derived in the course of routine clinical practice. 

Methods:
Patients were screened by a single interviewer for BPD, MDD and PTSD, panic disorder, obsessive-compulsive disorder (OCD) and social phobia using the apposite modules from the Structured Clinical Interview for DSM-IV (SCID) and histories of suicidal ideation and attempts. The data were subjected to analysis using a logistic regression model.

Results:
The database included 34 patients with BPD, 79 with MDD and 26 with a non-affective disorder. The risk for PTSD for a patient with BPD significantly exceeded that for a patient with MDD [odds ratio (OR)=4.9, 95% confidence interval (CI)=1.9-12.2, p=0.001]. Patients with PTSD had an insignificantly increased risk for suicidal ideation (OR=2.8, 95% CI=0.9-8.9, p=0.069), and a 4.5-fold significantly increased risk of having had a suicide attempt (OR=4.5, 95% CI=1.7-11.7, p=0.002). The relationship between PTSD and suicide attempts remained significant even after controlling for the confounding effects of concurrent panic disorder, OCD and social phobia (OR=3.4, 95% CI=1.1-10.0, p=0.023).

Conclusions:
Patients with BPD have a greater risk for PTSD than those with MDD. Post-traumatic stress disorder is significantly related to history of suicide attempts.

Keywords: affective disorders; anxiety disorders; bipolar disorder; post-traumatic stress disorder; suicide

DOI: 10.1111/j.1399-5618.2007.00396.x

Affiliations: 1: Department of Psychiatry, National Health Service, Forli, Italy 2: National Union of Depressive and Manic-depressive Association, Rennes, France

Authors: Dilsaver, Steven C; Benazzi, Franco1; Akiskal, Hagop S; Akiskal, Kareen K2

Source: Bipolar Disorders, Volume 9, Number 6, September 2007 , pp. 649-655(7)

Publisher: Blackwell Publishing

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