Defining adult e-cigarette prevalence: comparing a categorical definition with days of use

Electronic cigarette use has grown substantially and the health effects are being closely monitored. Tracking the evolving market place and the profile of adult users is important for tobacco control efforts; however, several different ways of measuring current use have been reported. This paper examines how well a categorical definition aligns with days of use.Data from the 2018 Minnesota Adult Tobacco Survey assessed e-cigarette use based on...