- E-cigarette use among young people is tied to increased risk for taking up conventional cigarette smoking.
- Those who use e-cigarettes first are 4-fold likelier than those who do not to start conventional cigarettes within 2 years.
Why this matters
- E-cigarette use is on the increase among young people, presenting a public health challenge.
- Among choices of nicotine/tobacco exposure, young people were most likely to turn to e-cigarettes.
- Using e-cigarettes increased overall odds of cigarette smoking:
- OR, 4.09 (95% CI, 2.97-5.63).
- Using e-cigarettes especially increased the likelihood that an otherwise low-risk young person (who does not engage in risky behaviors generally) would turn to cigarettes:
- OR, 8.57 (95% CI, 3.87-18.97).
- Prospective cohort study, 3 waves in the Population Assessment of Tobacco and Health Study (2013-2016); young people, 12-15 years, starting as never-users of these tobacco products.
- Funding: NIH.
- Observational, no causation established.