Correlates of delusion-like experiences in a non-psychotic community sample

Varghese, Daniel, Scott, James and McGrath, John (2008) Correlates of delusion-like experiences in a non-psychotic community sample. Australian & New Zealand Journal of Psychiatry, 42 6: 505-508. doi:10.1080/00048670802050595

Author Varghese, Daniel
Scott, James
McGrath, John
Title Correlates of delusion-like experiences in a non-psychotic community sample
Journal name Australian & New Zealand Journal of Psychiatry   Check publisher's open access policy
ISSN 0004-8674
Publication date 2008-06-01
Year available 2008
Sub-type Article (original research)
DOI 10.1080/00048670802050595
Volume 42
Issue 6
Start page 505
End page 508
Total pages 4
Editor P. Joyce
Place of publication New York, N. Y.
Publisher Informa Healthcare
Collection year 2009
Language eng
Subject C1
110319 Psychiatry (incl. Psychotherapy)
920410 Mental Health
1103 Clinical Sciences
Formatted abstract
Objective: Several large population-based studies have reported that otherwise-well individuals endorse items related to delusion-like experiences. The aim of the present study was to examine selected correlates of delusion-like experiences in a sample of nonpsychotic individuals.
Method: Subjects (n_310) were screened with the Diagnostic Interview for Psychosis in order to exclude psychotic disorders. Delusion-like experiences were assessed with the Peters Delusional Inventory (PDI). Non-parametric statistics were used to assess the relationship between total PDI score and a range of demographic (age, sex, migrant status, paternal age), physical (minor physical anomalies) symptom-related variables (hallucinations, awareness of thought disorder) and family history of mental illness.
Results: The median (range) PDI score was 4 (0_26), while one-third of the subjects endorsed seven or more items. The presence of a family history of any psychiatric condition was significantly correlated with a higher PDI score. PDI score was significantly positively correlated with endorsement of hallucinations and awareness of thought disorder. PDI was not significantly associated with sex, family history of schizophrenia, paternal age, migrant status nor scores related to minor physical anomalies. There was a trend level association between younger age and higher PDI score.
Conclusion: Delusion-like experiences are relatively common in non-psychotic individuals. The association with a family history of mental disorders provides clues to the mechanisms underlying the profile of delusion-like experience.
Keyword Delusions
Family history
Q-Index Code C1
Q-Index Status Confirmed Code

Document type: Journal Article
Sub-type: Article (original research)
Collections: 2009 Higher Education Research Data Collection
Excellence in Research Australia (ERA) - Collection
School of Medicine Publications
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Citation counts: TR Web of Science Citation Count  Cited 26 times in Thomson Reuters Web of Science Article | Citations
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Created: Tue, 24 Mar 2009, 22:18:57 EST by Sheila Cleary on behalf of Psychiatry - Royal Brisbane and Women's Hospital