Bottom Line: An analysis of data from two nationally representative surveys reports a greater proportion of U.S. adults perceived electronic cigarettes to be as, or more, harmful than cigarettes and a decreasing proportion of U.S. adults perceived e-cigarettes to be less harmful than cigarettes. The findings underscore the need to accurately communicate the risks of e-cigarettes to the public because the authors suggest some cigarette smokers may have been deterred from using or switching to e-cigarettes.

Authors: Jidong Huang, Ph.D., Georgia State University, Atlanta, Georgia, and coauthors

(doi: 10.1001/jamanetworkopen.2019.1047)

Editor's Note: The article contains conflict of interest and funding/support disclosures. Please see the article for additional information, including other authors, author contributions and affiliations, financial disclosures, funding and support, etc.

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