Objective: To examine how non-pharmacological integrated treatment components are presented in the literature, to facilitate high-quality dual diagnosis treatment and support informed decision-making in the development of integrated treatment facilities. Methods: A literature search was conducted in databases Ovid/Embase, PubMed, CINAHL focusing on intervention studies published between 2013 and 2023, describing integrated treatment for patients with dual diagnosis. A six-stage methodological framework for scoping reviews was used for selection and analysis of the papers included. Results: Twenty-six studies were included. Most integrated interventions were group therapy sessions guided by CBT or MI, however there was a large heterogeneity in the remaining core components and outcome measurements. Staff competence was often vaguely defined and described. Conclusions: The heterogeneity of the studies included influences reproductivity and comparability which makes it challenging to condense firm recommendations and point directions for design of treatment and scientific practice.
Keywords: Dual diagnosis; integrated treatment; non-pharmacological; psychiatry; psychosis; substance use.