Short- and long-term effects of digital prevention and treatment interventions for cannabis use reduction: A systematic review and meta-analysis

Boumparis, Nikolaos; Loheide-Niesmann, Lisa; Blankers, Matthijs; Ebert, David D; Korf, Dirk; Schaub, Michael P; Spijkerman, Renske; Tait, Robert J; Riper, Heleen

doi:10.1016/j.drugalcdep.2019.03.016

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Boumparis, N., Loheide-Niesmann, L., Blankers, M., Ebert, D. D., Korf, D., Schaub, M. P., Spijkerman, R., Tait, R. J., & Riper, H. (2019). Short- and long-term effects of digital prevention and treatment interventions for cannabis use reduction: A systematic review and meta-analysis. Drug and Alcohol Dependence, 200, 82–94. https://doi.org/10.1016/j.drugalcdep.2019.03.016

Abstract

BACKGROUND:

Frequent Cannabis use has been linked to a variety of negative mental, physical, and social consequences. We assessed the effects of digital prevention and treatment interventions on Cannabis use reduction in comparison with control conditions. METHODS:

Systematic review with two separate meta-analyses. Thirty randomized controlled trials met the inclusion criteria for the review, and 21 were included in the meta-analyses. Primary outcome was self-reported Cannabis use at post-treatment and follow-up. Hedges's g was calc