| Title |
Adolescent Marijuana Use, Marijuana-Related Perceptions, and Use of Other Substances Before and After Initiation of Retail Marijuana Sales in Colorado (2013–2015)
|
|---|---|
| Published in |
Prevention Science, July 2018
|
| DOI | 10.1007/s11121-018-0933-2 |
| Pubmed ID | |
| Authors |
Ashley Brooks-Russell, Ming Ma, Arnold H. Levinson, Leo Kattari, Tom Kirchner, Erin M. Anderson Goodell, Renee M. Johnson |
| 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. |
X Demographics
The data shown below were collected from the profiles of 20 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Canada | 4 | 20% |
| United States | 4 | 20% |
| Japan | 2 | 10% |
| Iceland | 1 | 5% |
| Spain | 1 | 5% |
| Portugal | 1 | 5% |
| United Kingdom | 1 | 5% |
| Unknown | 6 | 30% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 17 | 85% |
| Scientists | 2 | 10% |
| Science communicators (journalists, bloggers, editors) | 1 | 5% |
Mendeley readers
The data shown below were compiled from readership statistics for 126 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 126 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Researcher | 22 | 17% |
| Student > Master | 17 | 13% |
| Student > Ph. D. Student | 13 | 10% |
| Student > Bachelor | 12 | 10% |
| Student > Doctoral Student | 7 | 6% |
| Other | 13 | 10% |
| Unknown | 42 | 33% |
| Readers by discipline | Count | As % |
|---|---|---|
| Social Sciences | 24 | 19% |
| Psychology | 14 | 11% |
| Medicine and Dentistry | 12 | 10% |
| Nursing and Health Professions | 9 | 7% |
| Neuroscience | 4 | 3% |
| Other | 12 | 10% |
| Unknown | 51 | 40% |
Attention Score in Context
This research output has an Altmetric Attention Score of 50. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 14 April 2022.
All research outputs
#791,037
of 24,225,722 outputs
Outputs from Prevention Science
#42
of 1,103 outputs
Outputs of similar age
#17,703
of 333,439 outputs
Outputs of similar age from Prevention Science
#2
of 22 outputs
Altmetric has tracked 24,225,722 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 96th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 1,103 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 11.5. This one has done particularly well, scoring higher than 96% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 333,439 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 94% of its contemporaries.
We're also able to compare this research output to 22 others from the same source and published within six weeks on either side of this one. This one has done particularly well, scoring higher than 95% of its contemporaries.