Key points are not available for this paper at this time.
This study reports detailed information about the prevalence, patterns of, and reasons for e-cigarette use in the first (baseline) wave of the PATH Study in 2014. In addition to conventional categories for current, former and never smoking and e-cigarette use, the PATH questionnaire facilitated classification of new usage groups consisting of current and former triers of these products, which may impact prevalence estimates.
Rodu et al. (Mon,) studied this question.