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Updated: Nov 8, 2025

Comparing the Effects of Electronic Cigarette Vapor and Cigarette Smoke in a Novel In Vivo Exposure System
Published on: May 24, 2017
Examining e-cigarette perspectives before and after the EVALI peak in cases.
Julia M Alber1, Sydney Conover1, Erika Marts1
11 Grand Avenue, Department of Kinesiology and Public Health, California Polytechnic State University, San Luis Obispo, CA, USA.
Awareness of e-cigarette harms increased in U.S. adults after the EVALI outbreak. Perceptions shifted, with fewer adults finding e-cigarettes appealing or a good alternative to traditional cigarettes.
Area of Science:
- Public Health
- Behavioral Science
- Tobacco Control
Background:
- Youth e-cigarette use has surged, with media highlighting e-cigarette or vaping product use-associated lung injury (EVALI).
- Understanding adult perceptions of e-cigarettes is crucial for public health initiatives.
Purpose of the Study:
- To assess U.S. adult perceptions of e-cigarettes before and after the peak of EVALI cases.
- To identify changes in attitudes towards e-cigarettes in response to public health concerns.
Main Methods:
- Two online surveys were conducted with separate U.S. adult samples in July 2019 (n=521) and October 2019 (n=536).
- Participants described their perceptions of e-cigarettes, including appeal, comparison to tobacco products, and perceived harms.
Main Results:
- Fewer participants found e-cigarettes appealing (smell, flavor, taste) in the post-EVALI period (Time 2).
- Awareness of e-cigarette harms increased, with a higher percentage describing potential harms in Time 2.
- Participants in Time 2 less frequently viewed e-cigarettes as a favorable alternative to traditional cigarettes.
Conclusions:
- Adult perceptions of e-cigarettes shifted post-EVALI, with increased awareness of harms and decreased appeal.
- Findings are vital for informing future public health campaigns and policies regarding e-cigarette use.
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