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Number of Teens Vaping Marijuana on the Rise

Two studies show increasing self-reported use among both middle and high school students

MONDAY, Dec. 23, 2019 (HealthDay News) — The number of adolescents who vape marijuana is increasing, according to two research letters published online Dec. 17 in the Journal of the American Medical Association.

Hongying Dai, Ph.D., from the University of Nebraska Medical Center in Omaha, used data from the National Youth Tobacco Survey of U.S. middle and high school students to assess self-reported marijuana use in electronic cigarettes among U.S. students from 2017 to 2018. Dai found that the reported prevalence of ever marijuana use in e-cigarettes among all students increased from 11.1 to 14.7 percent. The largest increases in use were seen among current users of one tobacco product (33.2 to 40.6 percent) and students who lived with a household member using e-cigarettes (22.7 to 29.5 percent).

Richard A. Miech, Ph.D., from the University of Michigan in Ann Arbor, and colleagues used data from the Monitoring the Future survey of eighth, 10th, and 12th graders (2017 through 2019) to assess the prevalence of marijuana vaping. The researchers found that in 2019, past 30-day prevalence of marijuana vaping was reported by 3.9 percent of eighth graders, 12.6 percent of 10th graders, and 14 percent of 12th graders. The 30-day prevalence levels significantly increased from 2018 to 2019 across all grade levels (eighth grade: 1.3 percent; 10th grade: 5.6 percent; 12th grade: 6.5 percent).

“The rapid rise of marijuana vaping indicates the need for new prevention and intervention efforts aimed specifically at adolescents,” Miech and colleagues write.

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