@article{ref1,
title="Increases in frequent vaping of cannabis among high school seniors in the United States, 2018-2019",
journal="Journal of Adolescent Health",
year="2021",
author="Palamar, Joseph J.",
volume="ePub",
number="ePub",
pages="ePub-ePub",
abstract="PURPOSE: Studies have examined trends in cannabis vaping, but research is needed to examine trends in more frequent use as this may increase risk for adverse health outcomes. <br><br>METHODS: Data were from 12,561 high school seniors participating in the Monitoring the Future national study. Prevalence of self-reported frequent vaping of cannabis (defined as using ≥10 times in the past month) was compared between 2018 and 2019 cohorts. <br><br>RESULTS: Frequent vaping of cannabis significantly increased from 2.1% to 4.9%, a 131.4% increase. This increase was larger than the increase for any vaping of cannabis (which increased 85.9%). Notable significant increases occurred among students aged ≥18 years (a 154.9% increase), female students (a 183.5% increase), those who go out 4-7 evenings per week (a 163.0% increase), and those reporting past-year nonmedical prescription opioid use (a 184.7% increase). <br><br>CONCLUSIONS: Frequent vaping of cannabis is increasing among adolescents in the United States, particularly among selected subgroups.<p /> <p>Language: en</p>",
language="en",
issn="1054-139X",
doi="10.1016/j.jadohealth.2021.03.034",
url="http://dx.doi.org/10.1016/j.jadohealth.2021.03.034"
}