Year: 2019
Type: article
Study design: Observational Study
Abstract: Adolescents who vape use portable devices with a heating element to aerosolize a liquid that they inhale.Nicotine use is most common, but tetrahydrocannabinol (the principal psychoactive constituent of marijuana) can also be vaped.Marijuana vaping produces significantly greater physiological and psychological effects compared with traditional smoking methods at the same tetrahydrocannabinol levels, 1 raising concerns about potential health effects.This study reports the prevalence of marijuana vaping for 2019 among US adolescents and the prevalence increases between 2017, 2018, and 2019.Methods | Monitoring the Future 2 annually surveys nationally representative samples of 8th, 10th, and 12th graders between February and June.Each year schools from 368 randomly selected geographic units throughout the contiguous United States are sampled, with a school success-fully recruited from 90% of these units for 2017, 2018, and 2019.Student participation rates were 88% among 8th graders, 86% among 10th graders, and 80% among 12th graders.Analyses were based on the question "On how many days (if any) have you vaped marijuana?"with the time periods of "during the last 30 days," "during the last 12 months," and "in your lifetime."In 2019, the word "days" in the stem question replaced the word "occasions," which was used in 2017 and 2018.In 2019 "near-daily" marijuana vaping was measured for the first time and indicated use on "20+ days" during the past 30 days.A randomly selected two-thirds sample received the marijuana vaping questions in 2019, and a randomly selected one-third sample received the questions in 2017 and 2018.Analyses used version 15.1 of Stata MP software (StataCorp) with svy: commands to take into account the weights, clustering, and strata of the complex sampling design.3 Prevalence increases across adjacent years, as well as differences in magnitude of these increases during the study period, were tested for statistical significance with Wald tests using Table.Prevalence of Reported Marijuana Vaping by Grade and Year 2017
Source: JAMA
Language: English
Subfield: Physiology
Field: Medicine
Domain: Health Sciences
Open Access status: bronze
Funder: National Institute on Drug Abuse
Award: G466322276
OpenAlex ID: W2996614765