Association of preferred flavorings and device type with box or pack purchase behavior of electronic nicotine delivery systems in the United States.

This study examined the associations of preferred flavorings and device type of ENDS with box or pack purchase behavior. We analyzed current adult ENDS users in the United States who reported purchase of their own ENDS. Logistic regression revealed an increased likelihood of box/pack purchase behavior among users of menthol or mint-flavored ENDS, disposable, pod-based devices, and those who purchase ENDS from the Internet. A moderation analysis showed that the magnitude of the association between menthol or mint-flavored ENDS use and box/pack purchase was stronger among disposable and pod-based device users compared to tank or mods (customizable devices) users. In a subsequent stratified analysis menthol or mint flavor users were more likely than non-flavor users to engage in box/pack purchase among disposable and pod-based device users, but not among tank or mods users. Regulating flavors and maximum unit sale quantities of ENDS by device could thwart ENDS box/pack purchase behavior.