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Psychosis prevalence and physical, metabolic and cognitive co-morbidity: data from the second Australian national survey of psychosis

journal contribution
posted on 2023-05-17, 21:12 authored by Morgan, VA, McGrath, JJ, Jablensky, A, Badcock, JC, Waterreus, A, Bush, R, Carr, V, Castle, D, Cohen, M, Galletly, C, C Harvey, Hocking, B, McGorry, P, Amanda NeilAmanda Neil, Saw, S, Shah, S, Stain, HJ, Mackinnon, A
Background: There are insufficient data from nationwide surveys on the prevalence of specific psychotic disorders and associated co-morbidities. Method: The 2010 Australian national psychosis survey used a two-phase design to draw a representative sample of adults aged 18-64 years with psychotic disorders in contact with public treatment services from an estimated resident population of 1 464 923 adults. This paper is based on data from 1642 participants with an International Classification of Diseases (ICD)-10 psychotic disorder. Its aim is to present estimates of treated prevalence and lifetime morbid risk of psychosis, and to describe the cognitive, physical health and substance use profiles of participants. Results: The 1-month treated prevalence of psychotic disorders was 3.10 cases per 1000 population aged 18-64 years, not accounting for people solely accessing primary care services; lifetime morbid risk was 3.45 per 1000. Mean premorbid intelligence quotient was approximately 0.5 s.d.s below the population mean; current cognitive ability (measured with a digit symbol coding task) was 1.6 s.d.s below the population mean. For both cognitive tests, higher scores were significantly associated with better independent functioning. The prevalence of the metabolic syndrome was high, affecting 60.8% of participants, and pervasive across diagnostic groups. Of the participants, two-thirds (65.9%) were current smokers, 47.4% were obese and 32.4% were sedentary. Of the participants, half (49.8%) had a lifetime history of alcohol abuse/dependence and 50.8% lifetime cannabis abuse/dependence. Conclusions: Our findings highlight the need for comprehensive, integrative models of recovery to maximize the potential for good health and quality of life for people with psychotic illness. Copyright © Cambridge University Press 2013 The online version of this article is published within an Open Access environment subject to the conditions of the Creative Commons Attribution licence http://creativecommons.org/licenses/by/3.0/.

History

Publication title

Psychological medicine

Volume

44

Pagination

2163-2176

ISSN

0033-2917

Department/School

Menzies Institute for Medical Research

Publisher

Cambridge University Press

Place of publication

United Kingdom

Rights statement

Copyright 2013 Cambridge University Press

Repository Status

  • Restricted

Socio-economic Objectives

Specific population health (excl. Indigenous health) not elsewhere classified

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