Num. | TUP group label | TUP group definition |
---|---|---|
1 | Switchers | A lifetime smoker (≥ 100 cigarettes smoked) who smoked cigarettes regularly prior to initiating e-cigarette use and had quit smoking completely (no smoking in the past 30 days) at the time of survey and was a frequent e-cigarette user at the time of survey. |
2 | Dual users of cigarettes and e-cigarettes | A lifetime smoker (≥ 100 cigarettes smoked) who smoked cigarettes regularly prior to initiating e-cigarette use and was a current smoker (smoked in the past 30 days) and a frequent e-cigarette user at the time of survey. |
3 | Former smoker-turned-dual users | A lifetime smoker (≥ 100 cigarettes smoked) who had quit smoking completely prior to initiating e-cigarette use and was a current smoker (smoked in the past 30 days) and a frequent e-cigarette user at the time of survey. |
4 | Former-smoker e-cigarette users | A lifetime smoker (≥ 100 cigarettes smoked) who had quit smoking completely prior to initiating e-cigarette use and has not re-initiated regular smoking since initiating e-cigarette use and was a frequent e-cigarette user at the time of survey. |
5 | Never-smoker-turned-dual users | A lifetime never-smoker (< 100 cigarettes smoked) who was not smoking at the point of his/her first use of an e-cigarette and was a current smoker and a frequent e-cigarette user at the time of survey. |
6 | Never-smoker e-cigarette users | A lifetime never-smoker (< 100 cigarettes smoked) who was not smoking at the point of his/her first use of an e-cigarette and was not a current smoker at the time of survey and was a frequent e-cigarette user at the time of survey. |