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 non-psychotic 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.
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 non-psychotic 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.
Authors: Daniel Mamah; Akinkunle Owoso; Anne W Mbwayo; Victoria N Mutiso; Susan K Muriungi; Lincoln I Khasakhala; Deanna M Barch; David M Ndetei Journal: Child Psychiatry Hum Dev Date: 2013-06
Authors: Monica E Calkins; Tyler M Moore; Kathleen R Merikangas; Marcy Burstein; Theodore D Satterthwaite; Warren B Bilker; Kosha Ruparel; Rosetta Chiavacci; Daniel H Wolf; Frank Mentch; Haijun Qiu; John J Connolly; Patrick A Sleiman; Hakon Hakonarson; Ruben C Gur; Raquel E Gur Journal: World Psychiatry Date: 2014-10 Impact factor: 49.548
Authors: Maria Hedelin; Marie Löf; Marita Olsson; Tommy Lewander; Björn Nilsson; Christina M Hultman; Elisabete Weiderpass Journal: BMC Psychiatry Date: 2010-05-26 Impact factor: 3.630
Authors: Daniel Varghese; James Scott; Joy Welham; William Bor; Jake Najman; Michael O'Callaghan; Gail Williams; John McGrath Journal: Schizophr Bull Date: 2009-08-17 Impact factor: 9.306
Authors: Sukanta Saha; James G Scott; Daniel Varghese; Louisa Degenhardt; Tim Slade; John J McGrath Journal: BMC Psychiatry Date: 2011-12-28 Impact factor: 3.630