Trajectories of lifetime vaping in teens and young adults: latent transition analyses over one year
摘要
Despite the bidirectional relationship between initiation of cannabis and nicotine vaping, little is known about the patterns of vaping experimentation and progression among young people. The goal of this study was to describe the progression of vaping over one year in a longitudinal sample of teens and young adults.
Methods432 Vermont teens and young adults (ages 12–25) completed four items on lifetime occasions of vaping nicotine, cannabis, just flavoring, and cannabidiol at three timepoints between 2020 and 2021. Latent transition models with these items identified a multi-class solution across the timepoints. Poisson regression analyses identified baseline predictors of transitioning between classes over one year, including sociodemographics, substance use, and vaping harm perceptions.
ResultsThree lifetime vaping classes emerged at baseline: Never (46.8%), Experimenting (38.9%), and Experienced (14.4%). A greater proportion of the Experienced class vaped nicotine on 20 + occasions (53.1%) compared with the Experimenting class (20.9%), and 100% vaped cannabis on 20 + occasions (vs. 0% in the Experimenting class). Over one year, 5% of the Never vaping class moved to the Experimenting class; predictors of this transition were past 30-day tobacco and alcohol use and low relative harm perceptions of vaping nicotine vs. vaping cannabis. The Experienced vaping class grew by 9%, associated with baseline past 30-day cannabis use.
ConclusionsMore than 10% of young people transitioned into higher vaping class in one year. Past 30-day tobacco, alcohol, and cannabis use at baseline predicted transitions. Findings suggest the importance of comprehensive polysubstance prevention efforts to reduce vaping in young people.