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Heroin-dependent patient satisfaction with methadone as a medication influences satisfaction with basic interventions delivered by staff to implement methadone maintenance treatment

Authors Alcaraz S, Viladrich C, Trujols J, Siñol N, Pérez de los Cobos J

Received 31 January 2018

Accepted for publication 4 April 2018

Published 10 July 2018 Volume 2018:12 Pages 1203—1211

DOI https://doi.org/10.2147/PPA.S164181

Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Ms Justinn Cochran

Peer reviewer comments 2

Editor who approved publication: Dr Johnny Chen


Saul Alcaraz,1 Carme Viladrich,2 Joan Trujols,1,3 Núria Siñol,1 José Pérez de los Cobos1,3,4

1Addictive Behaviors Unit, Department of Psychiatry, Hospital de la Santa Creu i Sant Pau, Biomedical Research Institute Sant Pau (IIB Sant Pau), Barcelona, Spain; 2Department of Psychobiology and Methodology of Health Sciences, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain; 3Biomedical Research Networking Center on Mental Health (CIBERSAM), Madrid, Spain; 4Department of Psychiatry and Legal Medicine, School of Medicine, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain

Purpose: The aim of the present study was to test a structural equation model of patient satisfaction with different key facets of methadone maintenance treatment (MMT). In this model, the three dimensions of patient satisfaction with methadone as a medication (ie, personal functioning and well-being, anti-addictive effect on heroin, and anti-addictive effect on non-opioid substances) were expected to predict satisfaction with the basic interventions delivered by the staff of treatment centers to implement MMT.
Patients and methods: A sample of 210 heroin-dependent patients, resistant to MMT treatment (mean age =41.66 years, SD =6.50; 75.7% male), participated voluntarily in this study. Preliminary analysis based on exploratory structural equation modeling supported the expected three-factor measurement model of the scale to assess satisfaction with medications for addiction treatment – methadone for heroin addiction. Moreover, the 15 items measuring staff’s basic interventions were shown to be compatible with the expected single-factor measurement model. Then, both measurement models were included in a structural model.
Results: Results of this model show that patient satisfaction with the compatibility of methadone with personal functioning and well-being, as well as with the anti-addictive effects of methadone on non-opioid substances, predicts satisfaction with basic interventions conducted at methadone treatment centers (β=0.191 and β=0.152, respectively).
Conclusion: Our results provide further understanding regarding patient satisfaction with MMT, which could help professionals to better understand patient perspective and experience during MMT.

Keywords: exploratory structural equation modeling, satisfaction with medication, satisfaction with treatment, treatment quality, methadone non-responders

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