Demographics | Basic demographic information |
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Medical history | Medical problems and concomitant medication |
Smoking history | Information on smoking and quitting history (age when started smoking, number of cigarettes smoked per day, when the last cigarette was smoked, type of cigarettes smoked per day (roll-ups or factory-made), usual pack/pouch size, nicotine dependence, motivation to stop smoking, self-efficacy and outcome expectancies, history of any pharmacotherapy or e-cigarette use and exhaled CO measurement) |
Biological samples | Saliva samples to measure anabasine (for smoke intake) and cotinine (for nicotine intake) |