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Psychosocial treatments for people with co‐occurring severe mental illness and substance misuse: systematic review
Author(s) -
Cleary Michelle,
Hunt Glenn E.,
Matheson Sandra,
Walter Garry
Publication year - 2009
Publication title -
journal of advanced nursing
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.948
H-Index - 155
eISSN - 1365-2648
pISSN - 0309-2402
DOI - 10.1111/j.1365-2648.2008.04879.x
Subject(s) - psychosocial , motivational interviewing , randomized controlled trial , psychological intervention , contingency management , mental illness , psychiatry , medicine , systematic review , intervention (counseling) , dual diagnosis , cognitive behavioral therapy , clinical psychology , mental health , psychology , medline , cognition , surgery , political science , law
Title. Psychosocial treatments for people with co‐occurring severe mental illness and substance misuse: systematic review.Aim. This study is a report of a systematic review to assess current evidence for the efficacy of psychosocial interventions for reducing substance use, as well as improving mental state and encouraging treatment retention, among people with dual diagnosis. Background. Substance misuse by people with a severe mental illness is common and of concern because of its many adverse consequences and lack of evidence for effective psychosocial interventions. Data sources. Several electronic databases were searched to identify studies published between January 1990 and February 2008. Additional searches were conducted by means of reference lists and contact with authors. Review methods. Results from studies using meta‐analysis, randomized and non‐randomized trials assessing any psychosocial intervention for people with a severe mental illness and substance misuse were included. Results. Fifty‐four studies were included: one systematic review with meta‐analysis, 30 randomized controlled trials and 23 non‐experimental studies. Although some inconsistencies were apparent, results showed that motivational interviewing had the most quality evidence for reducing substance use over the short term and, when combined with cognitive behavioural therapy, improvements in mental state were also apparent. Cognitive behavioural therapy alone showed little consistent support. Support was found for long‐term integrated residential programmes; however, the evidence is of lesser quality. Contingency management shows promise, but there were few studies assessing this intervention. Conclusion. These results indicate the importance of motivational interviewing in psychiatric settings for the reduction of substance use, at least in the short term. Further quality research should target particular diagnoses and substance use, as some interventions may work better for some subgroups.