Title: Latent structure of psychosis in the general population: results from the Singapore mental health study
year: 2014
Journal: Psychol Med
Volume: 44
Issue: 1
Pages: 51-60
Epubdate: 12/04/2013
date: Jan
Alternate Journal: Psychological medicine
ISSN: 0033-2917
DOI: 10.1017/s0033291713000688
Accession Number: 23574702
Abstract: BACKGROUND: Few studies have examined the latent construct of psychotic symptoms or distinguished between the latent construct and its manifest indicators. The current study aimed to investigate the latent structure of psychotic symptoms using factor mixture modeling (FMM) and to use the best-fitting model to examine its sociodemographic and clinical correlates. METHOD: The Singapore Mental Health Study (SMHS) was based on an adult representative sample of the Singapore population. Psychotic symptoms were assessed by using the Psychosis Screen section of the Composite International Diagnostic Interview version 3.0 (CIDI 3.0). FMM analyses were applied to determine the latent construct of psychotic symptoms. Sociodemographic and clinical correlates of the latent structure of psychosis symptoms were examined using multiple linear and logistic regression analyses. RESULTS: The overall weighted lifetime prevalence of any psychotic experience was 3.8% in the SMHS after excluding subthreshold experiences. The FMM analysis clearly supported the dimensional model of the latent structure of psychotic symptoms. On deriving the total score for 'psychosis symptoms' in accordance with the one latent trait model, and correlating it with sociodemographic factors, we found that female gender, vocational education, current and past smokers were positively associated with the 'psychosis' total score. CONCLUSIONS: There is a need for an increased understanding of, and research into, this intermediate state of 'psychosis symptoms' that do not meet diagnostic criteria for psychosis. It is also important to learn more about the group of individuals in the community who may have preserved functioning to elucidate the protective factors that prevent transition to psychosis.
Notes: 1469-8978
Subramaniam, M
Abdin, E
Vaingankar, J A
Verma, S
Chong, S A
Journal Article
Research Support, Non-U.S. Gov't
England
Psychol Med. 2014 Jan
44(1):51-60. doi: 10.1017/S0033291713000688. Epub 2013 Apr 11.
URI: https://open-access.imh.com.sg/handle/123456789/4751
Authors Address: Research Division, Institute of Mental Health, Buangkok Green Medical Park, Singapore.
Translated author: NLM
Translated title: eng
Appears in Collections:2014

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