1. Cognitive-Behavioral Interventions Targeting Alcohol or Other Drug Use and Co-Occurring Mental Health Disorders: A Meta-Analysis.
- Author
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Mehta, Kahini, Hoadley, Ariel, Ray, Lara A, Kiluk, Brian D, Carroll, Kathleen M, and Magill, Molly
- Subjects
Humans ,Substance-Related Disorders ,Mental Disorders ,Adolescent ,Adult ,Aged ,Middle Aged ,Female ,Male ,Randomized Controlled Trials as Topic ,Young Adult ,Cognitive Behavioral Therapy ,Alcoholism ,Alcohol Use and Health ,Substance Misuse ,Brain Disorders ,Clinical Research ,Behavioral and Social Science ,Mental Health ,Clinical Trials and Supportive Activities ,Prevention ,Evaluation of treatments and therapeutic interventions ,6.6 Psychological and behavioural ,Mental health ,Good Health and Well Being ,Neurosciences ,Public Health and Health Services ,Psychology ,Substance Abuse - Abstract
AimsThis meta-analysis reviewed 15 clinical trials (18 study sites/arms), examining the efficacy of an integrated cognitive-behavioral intervention (CBI) delivered to individuals with an alcohol or other drug use disorder and a co-occurring mental health disorder (AOD/MHD). Outcomes were alcohol or other drug use and mental health symptoms at post-treatment through follow-up.MethodsThe inverse-variance weighted effect size was calculated for each study and pooled under random effects assumptions.ResultsIntegrated CBI showed a small effect size for AOD (g = 0.188, P = 0.061; I2 = 86%, τ2 = 0.126, k = 18) and MHD (g = 0.169, P = 0.024; I2 = 58%, τ2 = 0.052, k = 18) outcomes, although only MHD outcomes were statistically significant. Analysis by subgroup suggested that effect magnitude varied by type of contrast condition (integrated CBI + usual care vs. usual care only; integrated CBI vs. a single-disorder intervention), follow-up time point (post-treatment vs. 3-6 months) and primary AOD/MHD diagnosis, although these sub-groups often contained significant residual heterogeneity. In a series of mixed effects, meta-regression models, demographic factors were non-significant predictors of between-study heterogeneity. For AOD outcomes, greater effects were observed in higher quality studies, but study quality was not related to effect size variability for MHD outcomes.ConclusionsThe current meta-analysis shows a small and variable effect for integrated CBI with the most promising effect sizes observed for integrated CBI compared with a single disorder intervention (typically an AOD-only intervention) for follow-up outcomes, and for interventions targeting alcohol use and/or post-traumatic stress disorder. Given the clinical and methodological variability within the sample, results should be considered a preliminary, but important step forward in our understanding of treatment for co-occurring AOD/MHD.
- Published
- 2021