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The DrugCheck Problem List: a new screen for substance use disorders in people with psychosis
Authors:Kavanagh David J  Trembath Mark  Shockley Natalie  Connolly Jennifer  White Angela  Isailovic Alex  Young Ross McD  Saunders John B  Byrne Gerard J  Connor Jason
Affiliation:School of Medicine, University of Queensland, Royal Brisbane & Women's Hospital, Herston, Australia. david.kavanagh@qut.edu.au
Abstract:Despite considerable recent interest in the issue of comorbid substance use disorders in people with serious mental illness, there remains a need to refine approaches to screening. This paper describes the development and testing of a new screen for substance-related comorbidity, the 12-item DrugCheck Problem List (PL). Exploratory factor analysis with inpatient samples suggested a single-factor structure, although confirmatory factor analysis in a further sample found similar fit from a two-factor model. Sensitivity and specificity in detecting DSM-IV substance use disorders were both high and comparable to performances of the Severity of Dependence Scale and Alcohol Use Disorders Identification Test (Australian version). The list of problem areas provided by the PL has utility in driving further assessment and treatment planning, and offers suggested foci for motivational interviewing. While further testing is indicated, these data provide strong initial support for its use.
Keywords:Comorbidity   Screening   Substance-related disorders   Psychotic disorders   Schizophrenia
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