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Research Letter
December 17, 2019

Trends in Reported Marijuana Vaping Among US Adolescents, 2017-2019

Author Affiliations
  • 1Institute for Social Research, University of Michigan, Ann Arbor
  • 2Institute of Child Development, University of Minnesota, Minneapolis
JAMA. Published online December 17, 2019. doi:10.1001/jama.2019.20185

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.

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