Association between perceived health risks of e-cigarettes and actual e-cigarette use, based on cigarette smoking status and sexual and gender minority status among U.S. adults.

Current daily or some days use of e-cigarettes is associated with current daily or some days cigarette smoking and lowered perceived harmfulness of e-cigarettes among the U.S. adult population. Tailored health promotion and intervention efforts may reduce the potential perceived health and behavioral/lifestyle risks related to the use of tobacco products, especially the use of e-cigarettes daily among former and current cigarette smokers as well as those who perceive e-cigarettes as less harmful.