Fig. 4From: US adult smokers’ perceived relative risk on ENDS and its effects on their transitions between cigarettes and ENDSPercent of smokers who switched that reverted back to smoking, by previous-wave relative risk perceptions. ENDS: electronic nicotine delivery system; Switcher: former established smokers who are currently using ENDS. Note: Weighted percentages and standard errors of participants who reverted to smoking at Wave t + 1, stratified by the relative risk perception on ENDS at Wave t, calculated cross-sectionally at each wave. Individual PATH participants could contribute to more than one time-pointBack to article page