Fig. 1.

Rates of e-cigarette use, combustible cigarette smoking, dual use, and combustible cigarette smoking among e-cigarette users in homeless adults and the general population in Minnesota during 2014/2015 and 2018.

Note. * Homeless sample data were collected in 2015, while the general population data were collected in 2014. General population data have been previously reported by Clearway Minnesota, while the homeless sample data are reported as part of the current investigation. EC = electronic cigarette. ^†Refers to the percentage of participants who report both e-cigarette use and cigarette smoking in the past month. ^‡Refers to the percentage of past month e-cigarette users that report past month cigarette smoking