Journal
ADDICTION
Volume 106, Issue 11, Pages 2017-2028Publisher
WILEY
DOI: 10.1111/j.1360-0443.2011.03505.x
Keywords
E-cigarette; electronic cigarette; electronic nicotine delivery systems (ENDS); internet; nicotine; smoking; tobacco use disorder
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Funding
- University of Geneva
- University of Auckland
- New Zealand Health Research Council (HRC)
- NZ Heart Foundation
- New Zealand Ministry of Health
- Niconovum, Sweden
- HealthNZ
- HRC
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Aims To assess the profile, utilization patterns, satisfaction and perceived effects among users of electronic cigarettes ('e-cigarettes'). Design and Setting Internet survey in English and French in 2010. Measurements Online questionnaire. Participants Visitors of websites and online discussion forums dedicated to e-cigarettes and to smoking cessation. Findings There were 3587 participants (70% former tobacco smokers, 61% men, mean age 41 years). The median duration of electronic cigarette use was 3 months, users drew 120 puffs/day and used five refills/day. Almost all (97%) used e-cigarettes containing nicotine. Daily users spent $33 per month on these products. Most (96%) said the e-cigarette helped them to quit smoking or reduce their smoking (92%). Reasons for using the e-cigarette included the perception that it was less toxic than tobacco (84%), to deal with craving for tobacco (79%) and withdrawal symptoms (67%), to quit smoking or avoid relapsing (77%), because it was cheaper than smoking (57%) and to deal with situations where smoking was prohibited (39%). Most ex-smokers (79%) feared they might relapse to smoking if they stopped using the e-cigarette. Users of nicotine-containing e-cigarettes reported better relief of withdrawal and a greater effect on smoking cessation than those using non-nicotine e-cigarettes. Conclusions E-cigarettes were used much as people would use nicotine replacement medications: by former smokers to avoid relapse or as an aid to cut down or quit smoking. Further research should evaluate the safety and efficacy of e-cigarettes for administration of nicotine and other substances, and for quitting and relapse prevention.
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