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Comparing the Effects of Electronic Cigarette Vapor and Cigarette Smoke in a Novel In Vivo Exposure System
Published on: May 24, 2017
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Electronic Cigarette Use and Progression From Experimentation to Established Smoking
Benjamin W Chaffee1,2, Shannon Lea Watkins3,4, Stanton A Glantz3,4,5
1Center for Tobacco Control Research and Education, benjamin.chaffee@ucsf.edu.
Pediatrics
|March 7, 2018
Summary
Adolescent electronic cigarette (e-cigarette) users who have tried conventional cigarettes are more likely to become established smokers. E-cigarette use appears to encourage, not deter, progression to regular cigarette smoking in teens.
Area of Science:
- Public Health
- Adolescent Health
- Tobacco Control
Background:
- Adolescents experimenting with electronic cigarettes (e-cigarettes) face an elevated risk of transitioning to conventional cigarette smoking.
- Previous research indicates a link between e-cigarette use and subsequent smoking behaviors in never-smoking adolescents.
- This study focuses on adolescents who have already initiated cigarette experimentation.
Purpose of the Study:
- To evaluate the association between baseline e-cigarette use and progression to established smoking among adolescent cigarette experimenters.
- To examine the relationship between e-cigarette use and specific smoking outcomes at one-year follow-up.
Main Methods:
- Analysis of data from 1295 adolescents (ages 12-17) from the Population Assessment of Tobacco and Health survey.
- Participants had tried cigarettes but not yet smoked 100 cigarettes.
- Survey-weighted logistic regression models assessed outcomes: established smoking, past 30-day smoking, and current established smoking, adjusted for risk factors.
Main Results:
- Ever e-cigarette use was associated with higher rates of progression to established smoking (19.3% vs. 9.7%), past 30-day smoking (38.8% vs. 26.6%), and current established smoking (15.6% vs. 7.1%) compared to never users.
- Adjusted models showed e-cigarette use significantly predicted current established smoking (OR: 1.80; 95% CI: 1.04-3.12).
- Associations with established smoking (OR: 1.57; 95% CI: 0.99-2.49) and past 30-day smoking (OR: 1.32; 95% CI: 0.99-1.76) did not reach statistical significance.
Conclusions:
- Among adolescent cigarette experimenters, e-cigarette use is independently associated with progression to current established smoking.
- Findings suggest e-cigarettes may encourage, rather than divert from, cigarette smoking initiation and progression in this population.
- E-cigarette use represents a potential gateway to sustained conventional smoking among adolescents.
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