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Open AccessArticle

Impact of Co-Occurring Psychiatric Disorders on Retention in a Methadone Maintenance Program: An 18-Month Follow-Up Study

1
Institute of Psychiatry and Addiction (IAPs), Hospital del Mar and Institut Municipal d’Investigació Mèdica (IMIM), Hospital del Mar, Psg. Marítim 25-29, E-08003 Barcelona, Spain
2
Research Programme in Epidemiology and Public Health, Institut Municipal d’Investigació Mèdica (IMIM), Hospital del Mar, Doctor Aiguader 88, E-08003 Barcelona, Spain
3
Department of Psychiatry, Universitat Autònoma de Barcelona, Barcelona, Spain
*
Author to whom correspondence should be addressed.
Int. J. Environ. Res. Public Health 2009, 6(11), 2822-2832; https://doi.org/10.3390/ijerph6112822
Received: 15 October 2009 / Accepted: 10 November 2009 / Published: 12 November 2009
(This article belongs to the Special Issue Drug Abuse and Addiction)
We assess the influence of co-occurring psychiatric disorders on retention in 189 opioid dependent patients in a methadone maintenance treatment (MMT) and determine the incidence of psychiatric co-morbidity during an 18-month follow-up period. About 68.5 % were retained in the MMT. Neither co-occurring mental disorders (chi-square = 0.303, df = 1, p = 0.622) nor methadone doses [85 (88.9) vs. 79.2 (85) mg/day, p = 0.672] were related to retention. In the follow-up period 19 new diagnoses were made, mainly major depression and antisocial and borderline personality disorders. Co-occurring psychiatric disorders should be assessed during MMT follow-up. View Full-Text
Keywords: methadone; retention; co-occurring psychiatric disorders; incidence methadone; retention; co-occurring psychiatric disorders; incidence
MDPI and ACS Style

Astals, M.; Díaz, L.; Domingo-Salvany, A.; Martín-Santos, R.; Bulbena, A.; Torrens, M. Impact of Co-Occurring Psychiatric Disorders on Retention in a Methadone Maintenance Program: An 18-Month Follow-Up Study. Int. J. Environ. Res. Public Health 2009, 6, 2822-2832.

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