Participants were instructed to remain abstinent from traditional cigarettes for 4 days and from their e-cigarettes (or other nicotine containing products) and caffeine for 14 hours prior to the visit
Morean ME, Bold KW, Davis DR, Kong G, Krishnan-Sarin S, Camenga DR
British American Tobacco, like its peers, has offset its volume declines with price increases, resulting in increased profits this year and a corresponding stock rally
We found a borderline significant negative interaction between serum cotinine levels and allergic sensitization on current rhinitis ( P cotinine-allergic sensitization = 0.07)
Tobacco duty is also increasing in 2026, and vaping is expected to remain the lower-cost alternative compared to smoking.