Association of Electronic Nicotine Delivery System Use With Cigarette Smoking Progression or Reduction Among Young Adults

Key Points Question Is there an association between electronic nicotine delivery system (ENDS) use and changes in the frequency or intensity of cigarette smoking among ever-smoking young adults? Findings In a propensity score matching analysis of 3 years of data from the Population Assessment of Tobacco and Health Study, this cohort study of 1096 young adults found that ENDS use was not associated with an increase or decrease in cigarette smoking frequency or intensity among ever-smoking young adults during 1 year (2014-2015). Meaning In this study, new ENDS use among young adult cigarette smokers was not associated with either cigarette smoking increase or decrease during a 1-year period.

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