TITLE

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

AUTHOR(S)
Scott, James; Chant, David; Andrews, Gavin; Martin, Graham; McGrath, John
PUB. DATE
April 2007
SOURCE
British Journal of Psychiatry;Apr2007, Vol. 190, p339
SOURCE TYPE
Academic Journal
DOC. TYPE
journal article
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% CI 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% CI 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.
ACCESSION #
24780073

 

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