Evidence map›Paper›PMID 26361714›Full record

ArticleDrug and alcohol dependence2015

Past 15-year trends in adolescent marijuana use: Differences by race/ethnicity and sex.

Renee M Johnson, Brian Fairman, Tamika Gilreath, Ziming Xuan, Emily F Rothman, Taylor Parnham, C Debra M Furr-Holden

Abstract read
In one paragraph

Article in Drug and alcohol dependence, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 117 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
117citing papers in PubMed, 2 pooled it
16.9field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

117 citing papers in PubMed, 2 syntheses or guidelines pooled it, 187 citations in OpenAlex.

  1. Sex- and Gender-Based Analysis in Cannabis Treatment Outcomes: A Systematic Review.International journal of environmental research and public health · 2020
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57 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 1 country.

Renee M JohnsonJohns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States. Electronic address: rjohnson@jhu.edu.
Brian FairmanJohns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States.
Tamika GilreathUniversity of Southern California School of Social Work, Los Angeles, CA, United States.
Ziming XuanBoston University School of Public Health, Boston, MA, United States.
Emily F RothmanBoston University School of Public Health, Boston, MA, United States.
Taylor ParnhamJohns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States.
C Debra M Furr-HoldenJohns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States.
Johns Hopkins University · USBoston University · USUniversity of Southern California · US

Funding

NIDA Epidemiology Training Program: Johns Hopkins UniversityT32DA007292 · NIDA · JOHNS HOPKINS UNIVERSITY · PI RENEE M. JOHNSON, Brion S Maher · 1993 to 2026
$17.7M
The Alcohol Policy Environment and Leading Causes of Alcohol Related MortalityR01AA023376 · NIAAA · BOSTON MEDICAL CENTER · PI NAIMI, TIMOTHY SIMONDS, XUAN, ZIMING · 2014 to 2016
$1.2M
Underage alcohol use and dating abuse perpetrationK01AA017630 · NIAAA · BOSTON UNIVERSITY MEDICAL CAMPUS · PI ROTHMAN, EMILY F · 2009 to 2013
$782k
The Neighborhood Context of Marijuana Use Among Low-income Urban YouthK01DA031738 · NIDA · JOHNS HOPKINS UNIVERSITY · PI JOHNSON, RENEE M. · 2011 to 2015
$763k
NIAAA NIH HHS K01 AA017630NIAAA NIH HHS K01AA017630NIAAA NIH HHS R01 AA023376NIAAA NIH HHS R01AA023376NIDA NIH HHS K01 DA031738NIDA NIH HHS K01DA031738NIDA NIH HHS T32 DA007292NIDA NIH HHS T32DA007292
6 · The paper itself

Abstract

backgroundThe potential for increases in adolescent marijuana use is an important concern given recent changes in marijuana policy. The purpose of this study was to estimate trends in marijuana use from 1999 to 2013 among a national sample of US high school students. We examine changes over time by race/ethnicity and sex.

methodsData are from the National Youth Risk Behavior Survey (YRBS), which involves biennial, school-based surveys that generate nationally representative data about 9th-12th grade students in the United States. Students self-reported sex, race/ethnicity, and marijuana use (i.e., lifetime use, past 30-day use, any use before age 13). We generated national estimates of the prevalence of marijuana use for the time period, and also tested for linear and quadratic trends (n=115,379).

resultsThe prevalence of lifetime marijuana use decreased modestly from 1999 to 2009 (44% to 37%), and has increased slightly since 2009 (41%). Other marijuana use variables (e.g., past 30-day use) followed a similar pattern over time. The prevalence of past 30-day use from 1999 to 2013 for all groups and both sexes was 22.5%, and it was lowest among Asians and highest among American Indian/Alaska Natives. Although boys have historically had a higher prevalence of marijuana use, results indicate that male-female differences in marijuana use decreased over time.

conclusionDespite considerable changes in state marijuana policies over the past 15 years, marijuana use among high school students has largely declined. Continued surveillance is needed to assess the impact of policy changes on adolescent marijuana use.

Indexed as

AdolescentAdolescent BehaviorEthnicityFemaleHumansMaleMarijuana SmokingPrevalenceRacial GroupsRisk-TakingSchoolsSex FactorsStudentsSubstance-Related DisordersSurveys and QuestionnairesUnited StatesAdolescentMarijuana/cannabisRace/ethnicitySex differences

Identifiers

PMID26361714
PMCPMC4582007
OpenAlexW1961687900

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

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.