Vaping Status
Respondents were asked, “Have you ever heard of e-cigarettes? They are also sometimes called vapes, shisha pens or electronic cigarettes.” Those who responded “Yes” were asked “Which ONE of the following is closest to describing your experience of e-cigarettes?” with available responses ranging from “I have never used an e-cigarette” to “I use e-cigarettes every day.” Response options were classified into 3 categories: “never user,” “ever user,” and “current user” (including occasional and regular vaping) (eTable 1 in 