E-cigarette use among U.S. adult workers, 2017 and 2018, by cigarette smoking status

* Adults who were “working at a job or business,” “with a job or business but not at work,” or “working, but not for pay, at a family-owned job or business” during the week before the interview.
E-Cigarette use defined as: Used e-cigarettes at least once during their lifetime and used e-cigarettes “every day” or “some days” at the time of the survey.
Cigarette smokers were defined as persons who reported smoking ≥100 cigarettes during their lifetime and who currently smoke every day or some days.