Short- and long-term effects of digital prevention and treatment interventions for cannabis use reduction: A systematic review and meta-analysis
© 2019 The Authors 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 revi...
| Main Authors: | , , , , , , , , |
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| Format: | Journal Article |
| Language: | English |
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ELSEVIER IRELAND LTD
2019
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| Online Access: | http://hdl.handle.net/20.500.11937/76582 |
| _version_ | 1848763723445960704 |
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| author | Boumparis, N. Loheide-Niesmann, L. Blankers, M. Ebert, D.D. Korf, D. Schaub, M.P. Spijkerman, R. Tait, Robert Riper, H. |
| author_facet | Boumparis, N. Loheide-Niesmann, L. Blankers, M. Ebert, D.D. Korf, D. Schaub, M.P. Spijkerman, R. Tait, Robert Riper, H. |
| author_sort | Boumparis, N. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2019 The Authors 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 calculated for all comparisons with non-active control. Risk of bias was examined with the Cochrane risk-of-bias tool. Results: The systematic review included 10 prevention interventions targeting 8138 participants (aged 12 to 20) and 20 treatment interventions targeting 5195 Cannabis users (aged 16 to 40). The meta-analyses showed significantly reduced Cannabis use at post-treatment in the prevention interventions (6 studies, N = 2564, g = 0.33; 95% CI 0.13 to 0.54, p = 0.001) and in the treatment interventions (17 comparisons, N = 3813, g = 0.12; 95% CI 0.02 to 0.22, p = 0.02) as compared with controls. The effects of prevention interventions were maintained at follow-ups of up to 12 months (5 comparisons, N = 2445, g = 0.22; 95% CI 0.12 to 0.33, p < 0.001) but were no longer statistically significant for treatment interventions. Conclusions: Digital prevention and treatment interventions showed small, significant reduction effects on Cannabis use in diverse target populations at post-treatment compared to controls. For prevention interventions, the post-treatment effects were maintained at follow-up up to 12 months later. |
| first_indexed | 2025-11-14T11:08:00Z |
| format | Journal Article |
| id | curtin-20.500.11937-76582 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:08:00Z |
| publishDate | 2019 |
| publisher | ELSEVIER IRELAND LTD |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-765822021-01-15T07:49:43Z Short- and long-term effects of digital prevention and treatment interventions for cannabis use reduction: A systematic review and meta-analysis Boumparis, N. Loheide-Niesmann, L. Blankers, M. Ebert, D.D. Korf, D. Schaub, M.P. Spijkerman, R. Tait, Robert Riper, H. Science & Technology Life Sciences & Biomedicine Substance Abuse Psychiatry Cannabis Use Internet Prevention Treatment Meta-analysis Randomized controlled trials RANDOMIZED CONTROLLED-TRIAL STUDENT MARIJUANA USE DRUG-USE SUBSTANCE USE DELIVERED TREATMENT PRIMARY-CARE COMPUTER INTERNET ALCOHOL EFFICACY © 2019 The Authors 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 calculated for all comparisons with non-active control. Risk of bias was examined with the Cochrane risk-of-bias tool. Results: The systematic review included 10 prevention interventions targeting 8138 participants (aged 12 to 20) and 20 treatment interventions targeting 5195 Cannabis users (aged 16 to 40). The meta-analyses showed significantly reduced Cannabis use at post-treatment in the prevention interventions (6 studies, N = 2564, g = 0.33; 95% CI 0.13 to 0.54, p = 0.001) and in the treatment interventions (17 comparisons, N = 3813, g = 0.12; 95% CI 0.02 to 0.22, p = 0.02) as compared with controls. The effects of prevention interventions were maintained at follow-ups of up to 12 months (5 comparisons, N = 2445, g = 0.22; 95% CI 0.12 to 0.33, p < 0.001) but were no longer statistically significant for treatment interventions. Conclusions: Digital prevention and treatment interventions showed small, significant reduction effects on Cannabis use in diverse target populations at post-treatment compared to controls. For prevention interventions, the post-treatment effects were maintained at follow-up up to 12 months later. 2019 Journal Article http://hdl.handle.net/20.500.11937/76582 10.1016/j.drugalcdep.2019.03.016 English http://creativecommons.org/licenses/by-nc-nd/4.0/ ELSEVIER IRELAND LTD fulltext |
| spellingShingle | Science & Technology Life Sciences & Biomedicine Substance Abuse Psychiatry Cannabis Use Internet Prevention Treatment Meta-analysis Randomized controlled trials RANDOMIZED CONTROLLED-TRIAL STUDENT MARIJUANA USE DRUG-USE SUBSTANCE USE DELIVERED TREATMENT PRIMARY-CARE COMPUTER INTERNET ALCOHOL EFFICACY Boumparis, N. Loheide-Niesmann, L. Blankers, M. Ebert, D.D. Korf, D. Schaub, M.P. Spijkerman, R. Tait, Robert Riper, H. Short- and long-term effects of digital prevention and treatment interventions for cannabis use reduction: A systematic review and meta-analysis |
| title | Short- and long-term effects of digital prevention and treatment interventions for cannabis use reduction: A systematic review and meta-analysis |
| title_full | Short- and long-term effects of digital prevention and treatment interventions for cannabis use reduction: A systematic review and meta-analysis |
| title_fullStr | Short- and long-term effects of digital prevention and treatment interventions for cannabis use reduction: A systematic review and meta-analysis |
| title_full_unstemmed | Short- and long-term effects of digital prevention and treatment interventions for cannabis use reduction: A systematic review and meta-analysis |
| title_short | Short- and long-term effects of digital prevention and treatment interventions for cannabis use reduction: A systematic review and meta-analysis |
| title_sort | short- and long-term effects of digital prevention and treatment interventions for cannabis use reduction: a systematic review and meta-analysis |
| topic | Science & Technology Life Sciences & Biomedicine Substance Abuse Psychiatry Cannabis Use Internet Prevention Treatment Meta-analysis Randomized controlled trials RANDOMIZED CONTROLLED-TRIAL STUDENT MARIJUANA USE DRUG-USE SUBSTANCE USE DELIVERED TREATMENT PRIMARY-CARE COMPUTER INTERNET ALCOHOL EFFICACY |
| url | http://hdl.handle.net/20.500.11937/76582 |