Abstract
Objective: A mainstay treatment for opioid addiction in North America is methadone maintenance therapy (MMT) – a form of opiate agonist therapy (OAT). While efficacious for treating opioid addiction, MMT fails to address the concurrent polysubstance use that is common among opioid dependent clients. Moreover, psychosocial approaches for addressing polysubstance use during MMT are lacking. Our study's goals were to validate the use of the four-factor personality model of substance use vulnerability in MMT clients, and to demonstrate theoretically-relevant relationships of personality to concurrent substance use while receiving MMT. Method: Respondents included 138 daily-witnessed MMT clients (65.9% male, 79.7% Caucasian), mean age (SD) 40.18 (11.56), recruited across four Canadian MMT clinics. Bayesian confirmatory factor analysis was used to establish the structural validity of the four-factor personality model of substance use vulnerability (operationalized with the Substance Use Risk Profile Scale [SURPS]) in MMT clients. SURPS personality scores were then used as predictors for specific forms of recent (past 30-day) substance use. Results: Using a latent hierarchal model, hopelessness was associated with recent opioid use; anxiety sensitivity with recent tranquilizer use; and sensation seeking with recent alcohol, cannabis, and stimulant use. Conclusion: Personality is associated with substance use patterns and may be an appropriate target for intervention for those undergoing MMT to reduce opioid use, and potentially dangerous concurrent use of other drugs, while receiving methadone.
| Original language | English |
|---|---|
| Article number | 106056 |
| Journal | Addictive Behaviors |
| Volume | 98 |
| DOIs | |
| Publication status | Published - Nov 2019 |
Bibliographical note
Funding Information:Funding for this study was provided by a Canadian Research Initiative on Substance Misuse (CRISM) Québec-Atlantic Node-funded Demonstration Project [ Canadian Institute of Health Research (CIHR) SMN 139149 ]. CIHR had no role in the study design, collection, analysis or interpretation of the data, writing the manuscript, or the decision to submit the paper for publication.
Funding Information:
Funding for this study was provided by a Canadian Research Initiative on Substance Misuse (CRISM) Qu?bec-Atlantic Node-funded Demonstration Project [Canadian Institute of Health Research (CIHR)SMN 139149]. CIHR had no role in the study design, collection, analysis or interpretation of the data, writing the manuscript, or the decision to submit the paper for publication. ITM was funded by a Killam doctoral scholarship. PJC was funded by a senior FRQS Career Award. SPB was funded by CIHR. JFM was funded by a FRQS doctoral scholarship. AC was funded by a SSHRC doctoral scholarship. SHS was funded by a CIHR Tier 1 Canada Research Chair in Addictions and Mental Health. The authors would also like to extend special thanks to our collaborators at the four methadone clinics for their help with recruitment: the CRAN team, the Service de m?decine des Toxicomanies du CHUM team, the NSHA Central District Withdrawal Management and Opioid Treatment Program team and the Direction 180 team.
Funding Information:
ITM was funded by a Killam doctoral scholarship. PJC was funded by a senior FRQS Career Award. SPB was funded by CIHR. JFM was funded by a FRQS doctoral scholarship. AC was funded by a SSHRC doctoral scholarship. SHS was funded by a CIHR Tier 1 Canada Research Chair in Addictions and Mental Health. The authors would also like to extend special thanks to our collaborators at the four methadone clinics for their help with recruitment: the CRAN team, the Service de médecine des Toxicomanies du CHUM team, the NSHA Central District Withdrawal Management and Opioid Treatment Program team and the Direction 180 team.
Publisher Copyright:
© 2019
ASJC Scopus Subject Areas
- Medicine (miscellaneous)
- Clinical Psychology
- Toxicology
- Psychiatry and Mental health
