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.