Fig. 2From: US adult smokers’ perceived relative risk on ENDS and its effects on their transitions between cigarettes and ENDSPercent of never-ENDS-using smokers adopting ENDS, by previous-wave relative risk perceptions. ENDS: electronic nicotine delivery system. Note: Weighted percentages and standard errors using ENDS 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