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Oct 2, 2023Keywords:
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Main Article Content
Integrated vs non-integrated treatment outcomes in dual diagnosis disorders: A systematic review
Abstract
Background: The incidence of dual diagnosis (DD) (i.e. substance use disorders [SUD] and
co-occurring mental disorders) is widespread; however, they vary widely in permutation and
combination. As a result, establishing effective and empirically supported interventions for
this clinical population remains challenging.
Aim: This study aimed to examine current literature on the treatment outcomes for patients
with DD.
Method: A systematic review of randomised controlled trials (RCTs) published between 2009
and 2018 was conducted for two broad intervention categories identified by the literature: nonintegrated and integrated treatment. Multiple electronic databases were searched using the
Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines (PRISMA).
Results: The search generated a total of 743 studies, of which 11 satisfied the inclusion criteria.
These studies were thematically synthesised into two main analytical themes: ‘treatment
outcomes’ and ‘reported strengths and limitations of DD treatment’. Specifically, integrated
treatment held an advantage over non-integrated treatment in significantly improving
psychiatric symptomatology. However, no significant benefits were found between integrated
and non-integrated treatment regarding substance misuse and treatment retention.
Conclusion: Overall, the results provided insufficient evidence to support the enhanced
efficacy of integrated or non-integrated treatment over the other in treating patients with DD.
Contribution: The study’s findings were used to provide recommendations to inform the
clinical psychological service delivery of dual diagnosis treatment in South Africa and also to
identify gaps in the literature and highlight areas for future research.
