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Polysubstance use in cannabis users referred for treatment- drug use profiles, psychiatric comorbidity and cannabis-related beliefs434.17 kB
Published VersionCC BY V4.0, Open Access
Journal article
Polysubstance Use in Cannabis Users Referred for Treatment: Drug Use Profiles, Psychiatric Comorbidity and Cannabis-Related Beliefs
Frontiers in Psychiatry, Vol.4, pp.1-7
2013
PMCID: PMC3736050
PMID: 23966956
Abstract
Background: Population-based surveys demonstrate cannabis users are more likely to use both illicit and licit substances, compared with non-cannabis users. Few studies have examined the substance use profiles of cannabis users referred for treatment. Co-existing mental health symptoms and underlying cannabis-related beliefs associated with these profiles remains unexplored.
Methods: Comprehensive drug use and dependence severity (Severity of Dependence Scale-Cannabis) data were collected on a sample of 826 cannabis users referred for treatment. Patients completed the General Health Questionnaire, Cannabis Expectancy Questionnaire, Cannabis Refusal Self-Efficacy Questionnaire, and Positive Symptoms and Manic-Excitement subscales of the Brief Psychiatric Rating Scale. Latent class analysis was performed on last month use of drugs to identify patterns of multiple drug use. Mental health comorbidity and cannabis beliefs were examined by identified drug use pattern.
Results: A three-class solution provided the best fit to the data: (1) cannabis and tobacco users (n = 176), (2) cannabis, tobacco, and alcohol users (n = 498), and (3) wide-ranging substance users (n = 132).Wide-ranging substance users (3) reported higher levels of cannabis dependence severity, negative cannabis expectancies, lower opportunistic, and emotional relief self-efficacy, higher levels of depression and anxiety and higher manic-excitement and positive psychotic symptoms.
Conclusion: In a sample of cannabis users referred for treatment, wide-ranging substance use was associated with elevated risk on measures of cannabis dependence, co-morbid psychopathology, and dysfunctional cannabis cognitions. These findings have implications for cognitive-behavioral assessment and treatment.
Details
- Title
- Polysubstance Use in Cannabis Users Referred for Treatment: Drug Use Profiles, Psychiatric Comorbidity and Cannabis-Related Beliefs
- Authors
- Jason P Connor (Author) - Princess Alexandra HospitalMatthew J Gullo (Author) - Princess Alexandra HospitalGary Chan (Author) - The University of QueenslandRoss Young (Author) - The University of QueenslandWayne D Hall (Author) - The University of QueenslandGerald F. X Feeney (Author) - Princess Alexandra Hospital
- Publication details
- Frontiers in Psychiatry, Vol.4, pp.1-7
- Publisher
- Frontiers Research Foundation
- Date published
- 2013
- DOI
- 10.3389/fpsyt.2013.00079
- ISSN
- 1664-0640
- PMID
- 23966956; PMC3736050
- Copyright note
- Copyright © 2013 Connor, Gullo, Chan, Young , Hall and Feeney. This is an openaccess article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
- Organisation Unit
- University of the Sunshine Coast, Queensland; Office of the Deputy Vice-Chancellor (Research and Innovation)
- Language
- English
- Record Identifier
- 99550989602621
- Output Type
- Journal article
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