Fig. 1

AORs and switching rates by comparative risk perception groups, among all baseline established smokers. A and B: Adjusted odds ratios (AORs) for switching (y-axis) for risk perception groups (x-axis), for both direct (A) and indirect (B) comparative risk perceptions. C and D: Average adjusted switching rates across direct (C) and indirect (D) risk perception groups. Analyses adjust for baseline smoking history and demographic characteristic (see text for details) (see text for details). Brackets and * indicate significance at p<.05 between adjacent categories based on GEE model (see text). Indirect comparative risk fraction = 1 indicates equal perceived risk of switching to JUUL and continued smoking, and is included in the “=1 to <2” group. Indirect risk fraction <1 (“=0 to <1” group) indicates that continued smoking is perceived to be less risky than switching to JUUL; values > 1 indicate that switching to JUUL is perceived to be less risky than continued smoking