Trends in Reported Marijuana Vaping among US adolescents, 2017-2019.

Introduction:
This text discusses a study on trends in reported marijuana vaping among US adolescents between 2017 and 2019. The study uses data from the Monitoring the Future survey and focuses on the prevalence of marijuana vaping in the past 30 days, past 12 months, and in a lifetime. The study also examines near-daily marijuana vaping. The key points and main message of the text are summarized below.

Key Points:

* The study used data from the Monitoring the Future survey, which annually surveys nationally representative samples of 8th, 10th, and 12th graders.
* The survey used a complex sampling design, and the analyses used Stata software to account for the weights, clustering, and strata of the sampling design.
* The study found that reported past 30-day prevalence of marijuana vaping increased significantly from 2018 to 2019 for 8th, 10th, and 12th graders.
* The study also found that reported past 12-month and lifetime prevalence of marijuana vaping increased significantly for all grades from 2017 to 2019.
* The increases in prevalence among 12th graders were larger from 2018 to 2019 than from 2017 to 2018.
* In 2019, near-daily marijuana vaping was reported by 0.8% of 8th graders, 3.0% of 10th graders, and 3.5% of 12th graders.
* The study highlights the need for new prevention and intervention efforts aimed specifically at adolescents.

Main Message:
The study shows a significant increase in reported marijuana vaping among US adolescents from 2018 to 2019. The increased prevalence of marijuana vaping, especially among 12th graders, indicates the need for new prevention and intervention efforts aimed specifically at adolescents. The study's findings also highlight the potential health consequences of marijuana vaping, including lung injury when using black market formulations. Therefore, it is essential to address the issue of adolescent marijuana vaping and develop effective strategies to prevent and reduce its use.

Miech Ra, Patrick ME, O’Malley PM, Johnston LD, Bachman JG. Trends in Reported Marijuana Vaping among US adolescents, 2017-2019. JaMa. 2020;323(5):475-476. doi:10.1001/jama.2019.20185