The effectiveness of psychosocial interventions at reducing the frequency of alcohol and drug use in parents: findings of a Cochrane review and meta‐analyses

McGovern, Ruth, Newham, James, Addison, Michelle, Hickman, Matt and Kaner, Eileen (2022) The effectiveness of psychosocial interventions at reducing the frequency of alcohol and drug use in parents: findings of a Cochrane review and meta‐analyses. Addiction, 117 (10). pp. 2571-2582. ISSN 0965-2140

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Abstract

Background and aim
Parental substance use is a major public health and safeguarding concern. There have been a number of trials examining interventions targeting this risk factor. We aimed to estimate the effectiveness of psychosocial interventions at reducing parental substance use.

Design
We used systematic methods to identify trials; pooling data using a random-effects model. Moderator analyses examined influence of parent gender, presence of child in treatment, and intervention type.

Setting
No restrictions on setting.

Participants
Substance using parents of children below the age of 21 years.

Interventions

Psychosocial interventions including those that targeted drug and alcohol use only, and drug and alcohol use in combination with associated issues.

Measurements
Frequency of alcohol use and frequency of drug use.

Findings
We included 8 unique studies with a total of 703 participants. Psychosocial interventions were more effective at reducing the frequency of parental alcohol use than comparison conditions at 6 month (SMD - 0.32, 95% CI -0.51 to -0.13, P = 0.001) and 12-month follow-up (SMD -0.25, 95% CI -0.47 to -0.03, P = 0.02), and frequency of parental drug use at 12 months only (SMD-0.21, 95% CI -0.41 to -0.01, P = 0.04). Integrated interventions which combined both parenting and substance use targeted components were effective at reducing the frequency of alcohol use (6 months: SMD -0.56, 95% CI -0.96 to -0.016, P = 0.006; 12 months: SMD -0.42, 95% CI -0.82 to -0.03, P = 0.04) and drug use (6 months: SMD -0.39, 95% CI -0.75 to -0.03, P = 0.04; 12 months: SMD -0.43, 95% CI -0.80 to -0.07, P = 0.02). Interventions targeting only substance use or parenting skills were not effective at reducing frequency of alcohol or drug use at either time point.

Conclusion
Psychosocial interventions should target both parenting and substance use in an integrated intervention.

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