ArticlePrevention science : the official journal of the Society for Prevention Research2019
Adolescent Marijuana Use, Marijuana-Related Perceptions, and Use of Other Substances Before and After Initiation of Retail Marijuana Sales in Colorado (2013-2015).
Article in Prevention science : the official journal of the Society for Prevention Research, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
40 citing papers in PubMed, 1 synthesis or guideline pooled it, 93 citations in OpenAlex.
- Is legalization of recreational cannabis associated with levels of use and cannabis use disorder among youth in the United States? A rapid systematic review.European child & adolescent psychiatry · 2024Pooled it
- Local Cannabis Policy and Cannabis Use by California High School Students Before and After Statewide Retail Legalization.The Journal of adolescent health : official publication of the Society for Adolescent Medicine · 2026Article
- Cannabis legalization and increasing cannabis use in the United States: Data from urine toxicology testing in emergency room patients.The International journal on drug policy · 2025Article
- The Impact of Recreational Cannabis Markets on Cannabis Use Among Adolescents and Adults: A Synthetic Control Analysis.Cannabis (Albuquerque, N.M.) · 2025Article
- Historical change in associations between perceived risk, disapproval, and use of cannabis among young adults ages 19-30, 2011-2022.Addictive behaviors · 2025Article
- Discriminatory Harassment and Marijuana Use Among Adolescents in Oregon Counties that Vary in Retail Availability of Marijuana.Substance use & misuse · 2025Article
- "Like the Wild West": Health care provider perspectives on impacts of recreational cannabis legalization on patients and providers at a tertiary psychiatric hospital in Ontario, Canada.Journal of substance use and addiction treatment · 2024Article
- Association of Local Cannabis Policy and Retail Availability With Cannabis Use and Problematic Cannabis Use Among Adolescents in Northern California.American journal of public health · 2024Article
- Trends in Substance-Related Visits Among Youth to US Children's Hospitals, 2016-2021: An Analysis of the Pediatric Health Information System Database.The Journal of adolescent health : official publication of the Society for Adolescent Medicine · 2024Article
- Tobacco-cannabis co-use and risk of substance use problems among Black and Hispanic adolescent and young adult females in New York City.International journal of mental health and addiction · 2024Article
- The association between physical availability of cannabis retail outlets and frequent cannabis use and related health harms: a systematic review.Lancet regional health. Americas · 2024Review
- Health, safety, and socioeconomic impacts of cannabis liberalization laws: An evidence and gap map.Campbell systematic reviews · 2023Article
- Recreational Cannabis Legalization and Proximity to Cannabis Retailers as Risk Factors for Adolescents' Cannabis Use.Prevention science : the official journal of the Society for Prevention Research · 2023Article
- Minimum legal age laws and perceived access to cigarettes, e-cigarettes, and other substances among youth in Canada, England, and the United States: 2017-2021.The International journal on drug policy · 2023Article
- Racial/ethnic differences in social determinants of health and health outcomes among adolescents and youth ages 10-24 years old: a scoping review.BMC public health · 2023Article
- Impacts of recreational cannabis legalization on use and harms: A narrative review of sex/gender differences.Frontiers in psychiatry · 2023Review
- DNA methylation changes associated with cannabis use and verbal learning performance in adolescents: an exploratory whole genome methylation study.Translational psychiatry · 2022Article
- Longitudinal associations between e-cigarette use and onset of multiple modes of cannabis use among US adolescents.Addictive behaviors · 2022Article
- From "Bhang Shops" to "Cannabis in Coffee Shops": Time to Debate the Option?Indian journal of psychological medicine · 2022Article
- Perceptions of the health risks of cannabis: estimates from national surveys in Canada and the United States, 2018-2019.Health education research · 2022Article
Corrections and comments
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Authors and funding
7 authors at 4 institutions in 1 country.
Funding
Abstract
Due to the recentness of changes to marijuana policies in a number of states, the effect on adolescent use and perceptions is not yet well understood. This study examines change in adolescent marijuana use and related perceptions in Colorado, before and after the implementation of legal commercial sale of recreational marijuana for adults starting on January 1, 2014. The data are from a repeated cross-sectional survey of a representative sample of Colorado high school students, with separately drawn samples surveyed in fall 2013 (prior to implementation) and fall 2015 (18 months after implementation). We examined change in the prevalence of adolescent marijuana use, measured by lifetime use, past 30-day use, frequent use, and use on school property. To consider the possibility of heterogeneity in the change in marijuana use, we examined change in past 30-day marijuana use by demographic characteristics (sex, grade, race/ethnicity), school characteristics (poverty, percent minority), urbanicity of the school district, and whether the city or county permitted retail marijuana stores. There was an absence of significant effects for change in lifetime or past 30-day marijuana use. Among those reporting past 30-day use, frequent use and use on school property declined. There was a significant decline in the perceived harm associated with marijuana use, but we did not find a significant effect for perceived wrongfulness, perceived ease of access, or perceived parental disapproval. We did not find significant variability in past 30-day use by demographic characteristics or by school and community factors from 2013 to 2015. We did not find a significant effect associated with the introduction of legal sales of recreational marijuana to adults in Colorado on adolescent (illegal) use, but ongoing monitoring is warranted, including consideration of heterogeneity in the effects of marijuana policies.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.