E-cigarette use patterns, flavors, and device characteristics associated with quitting smoking among a US sample of adults using e-cigarettes in a smoking cessation attempt.

This study provides important new information about characteristics of e-cigarettes used during an attempt to quit smoking among adults across the U.S. and identifies factors associated with quitting success. Patterns of e-cigarette use were associated with longer durations of abstinence. In contrast, few e-cigarette characteristics were associated with abstinence. Although preference for some pod and mod device types was associated with longer abstinence duration compared to earlier cig-a-like devices, preference for non-tobacco (vs. tobacco) flavor and nicotine concentration were not associated with abstinence. Findings may help inform guidance for adults using e-cigarettes to quit smoking and support tobacco regulatory policies.