Increases in adolescent vaping from 2017 to 2018 were the largest ever recorded in the past 43 years for any adolescent substance use outcome in the U.S. The percentage of 12th grade students who reported vaping nicotine in the past 30 days nearly doubled, rising from 11% to 21%. This ten percentage point increase is twice as large as the previous record for largest-ever increase among past 30-day outcomes in 12th grade. As a result of the increase, one in five 12th grade students vaped nicotine in the last 30 days in 2018.
Furthermore, vaping prevalence more than doubled in each of the three grades from 2017 to 2019. In 2019, the prevalence of use during the previous 30 days was more than 1 in 4 students in the 12th grade, more than 1 in 5 in the 10th grade, and more than 1 in 11 in the 8th grade.