Respondents were first asked, Have you smoked at least 100 cigarettes in your entire life? If a respondent answered yes, he or she was then asked, Do you now smoke cigarettes every day, some days or not at all? We used the responses to these two questions to classify respondents into three groups: nonsmokers (those who answer no to the first question or not at all to the second question), nondaily current smokers (those who answer some days to the second question), and daily current smokers (those who answer every day to the second question)

Its surprising that something as simple as a pictorial warning can make some people quit. In the 2014-2015 study, the researchers recruited 2,149 adult smokers in North Carolina and California and randomly assigned them to receive on their cigarette packs for four weeks either a text-only warning (one of the current warnings on the side of cigarette packs in the United States) or a pictorial warning (one of the proposed warnings with pictures on the top half of the front and back of cigarette packs)
No, says Joe, I aint no quitter. 'Rene' with Rene French and E
This includes disposable lighters, refillable lighters, and matchbooks