Cited by 111Substance Abuse Treatment and OutcomesCannabis and Cannabinoid ResearchSmoking Behavior and Cessation

A randomized controlled trial testing the efficacy of a brief cannabis universal prevention program among adolescents in primary care

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Walton, Maureen A., Resko, Stella, Barry, Kristen L., Chermack, Stephen T., Zucker, Robert A., Zimmerman, Marc A., Booth, Brenda M., Blow, Frederic C.·2014·Addiction

Abstract

AIMS: To examine the efficacy of a brief intervention delivered by a therapist (TBI) or a computer (CBI) in preventing cannabis use among adolescents in urban primary care clinics. DESIGN: A randomized controlled trial comparing: CBI and TBI versus control. SETTING: Urban primary care clinics in the United States. PARTICIPANTS: Research staff recruited 714 adolescents (aged 12-18 years) who reported no life-time cannabis use on a screening survey for this study, which included a baseline survey, randomization (stratified by gender and grade) to conditions (control; CBI; TBI) and 3-, 6- and 12-month assessments. MEASUREMENTS: Using an intent-to-treat approach, primary outcomes were cannabis use (any, frequency); secondary outcomes included frequency of other drug use, severity of alcohol use and frequency of delinquency (among 85% completing follow-ups). FINDINGS: Compared with controls, CBI participants had significantly lower rates of any cannabis use over 12 months (24.16%, 16.82%, respectively, P < 0.05), frequency of cannabis use at 3 and 6 months (P < 0.05) and other drug use at 3 months (P < 0.01). Compared with controls, TBI participants did not differ in cannabis use or frequency, but had significantly less other drug use at 3 months (P < 0.05), alcohol use at 6 months (P < 0.01) and delinquency at 3 months (P < 0.01). CONCLUSIONS: Among adolescents in urban primary care in the United States, a computer brief intervention appeared to prevent and reduce cannabis use. Both computer and therapist delivered brief interventions appeared to have small effects in reducing other risk behaviors, but these dissipated over time.

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  1. [41]Hedges LV Olkin I Statistical Methods for Meta-Analysis 1985 Academic Press San Diego, CA

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Authors
Walton, M. A., Resko, S., Barry, K. L., Chermack, S. T., Zucker, R. A., Zimmerman, M. A., Booth, B. M., & Blow, F. C.
Affiliations
  • University of Michigan (US)
  • Wayne State University (US)
  • Central Arkansas Veterans Healthcare System (US)
Corresponding author
Walton, Maureen A.
Venue
Addiction
Publisher
Wiley
Published
2014-02-12
Volume
109
Issue
5
Pages
786-797
ISSN
0965-2140 (ISSN-L)
OpenAlex
W2129771707
Cited by
111
References
51
Citations by year
2026: 2 · 2025: 2 · 2024: 3 · 2023: 8 · 2022: 7 · 2021: 9 · 2020: 7 · 2019: 40 · 2018: 10 · 2017: 7 · 2016: 9 · 2015: 5 · 2014: 2
FWCI
3.89
Type
journal article
Language
en
Open access
Locations
  • Addiction (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Deep Blue (University of Michigan) (submittedVersion)
Funders
National Institute on Drug Abuse (R01DA020075, DA020075)
Topics
  • Health Sciences › Medicine › Epidemiology › Substance Abuse Treatment and Outcomes
  • Health Sciences › Medicine › Pharmacology › Cannabis and Cannabinoid Research
  • Health Sciences › Medicine › Physiology › Smoking Behavior and Cessation
Keywords
cannabis use prevention, adolescents, brief intervention, computer-based intervention, primary care, substance use prevention, alcohol consumption, delinquency, other drug use, urban youth
MeSH terms
Adolescent, Alcohol Drinking, Child, Female, Humans, Juvenile Delinquency, Male, Marijuana Smoking, Primary Health Care, Therapy, Computer-Assisted, United States, Urban Population, Treatment Outcome, Motivational Interviewing

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