Association between trauma exposure and delusional experiences in a large community-based sample

Scott, J., Chant, D. C., Andrews, G., Martin, G. and McGrath, J. J. (2007) Association between trauma exposure and delusional experiences in a large community-based sample. British Journal of Psychiatry, 190 APR.: 339-343. doi:10.1192/bjp.bp.106.026708

Author Scott, J.
Chant, D. C.
Andrews, G.
Martin, G.
McGrath, J. J.
Title Association between trauma exposure and delusional experiences in a large community-based sample
Journal name British Journal of Psychiatry   Check publisher's open access policy
ISSN 0007-1250
Publication date 2007-01-01
Sub-type Article (original research)
DOI 10.1192/bjp.bp.106.026708
Volume 190
Issue APR.
Start page 339
End page 343
Total pages 5
Place of publication London
Publisher Royal College of Psychiatrists
Collection year 2008
Language eng
Subject C1
321204 Mental Health
730204 Child health
Abstract Background Surveys have found that otherwise well individuals report delusional experiences. Previous studies have shown an association between psychotic symptoms and exposure to trauma. Aims To explore the association between trauma and delusional experiences in a community sample Method Respondents (n=10 641) were assessed for delusional experiences, exposure to various types of traumatic experiences and the presence of post-traumatic stress disorder (PTSD). The endorsement of delusional items was examined in people exposed to traumatic events who did or did not have PTSD. Results Exposure to any traumatic event but without the development of PTSD was associated with increased endorsement of delusional experiences (relative risk 2.68, 95% Cl 2.18-3.30) and there was a significant dose-response relationship between the number of types of traumatic events and endorsement of such experiences (chi(2)=26.74, d.f.=2, P < 0.001). A diagnosis of PTSD further increased endorsement of delusional experiences (RR=9.24,95% Cl 6.95-12.27). The association between PTSD and delusional experiences remained significant after adjusting for factors associated with psychotic symptoms. Conclusions Further investigation into the pathways between trauma, delusions and psychosis may provide insights into shared aetiological mechanisms underpinning these conditions.
Keyword Psychiatry
Child Sexual-abuse
Psychotic Symptoms
Q-Index Code C1

Document type: Journal Article
Sub-type: Article (original research)
Collections: Excellence in Research Australia (ERA) - Collection
2008 Higher Education Research Data Collection
School of Medicine Publications
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Created: Tue, 19 Feb 2008, 02:50:20 EST