Study participants
vasovagal reaction
VASOVAGAL REACTION
A total of 93 candidates were screened, and 40 subjects were randomized. Those that were not randomized either failed inclusion/exclusion criteria at screening (n = 40) or were lost to follow-up (n = 13). Thirty-eight participants completed all test sessions for Vuse Ciro and NRT gum, and 39 participants completed all test sessions for Vuse Vibe and UB cigarettes. Two participants withdrew from the study, one due to a vasovagal reaction related to blood draws (withdrawn by the principal investigator) and one due to participant’s choice before receiving any study products.The demographic and baseline characteristics of all randomized subjects were previously reported in Campbell et al.