Despite years of anti-smoking education and legislation, tobacco use still remains an important public health issue in the United States. In 2010, 25 percent of all adults and 36 percent of young adults reported current tobacco use. While anti-tobacco efforts continue across the county, the introduction of electronic cigarettes (e-cigarettes) has been marketed as a less harmful alternative to cigarettes and also as a smoking cessation aid.
E-cigarettes supply nicotine through inhaled water vapor. While the addictiveness and long-term effects of using e-cigarettes as a nicotine delivery system are unknown, many people anecdotally believe that they are safer than traditional tobacco products. According to a new study published in the February issue of the American Journal of Preventive Medicine, the belief that e-cigarettes pose less of a health risk may lead to increased experimentation with e-cigarettes among young adults.
Investigators from the Division of Epidemiology & Community Health at the University of Minnesota looked at whether there was a relationship between perceived notions about the harmfulness of e-cigarettes relative to cigarettes and subsequent e-cigarette use among young adults. Investigators surveyed 1,379 participants from the Minnesota Adolescent Community Cohort who had never used e-cigarettes. The initial baseline survey explored their opinions about e-cigarettes and their effect on health relative to cigarettes or their usefulness as an aid to stop smoking. Then, a follow-up survey conducted one year later asked participants if they had experimented with e-cigarettes.
"Participants who agreed e-cigarettes can help people quit smoking and those who agreed that e-cigarettes are less harmful than cigarettes were more likely than those who did not agree to subsequently report experimenting with e-cigarettes. These associations did not vary by gender or smoking status," said study lead author Dr. Kelvin Choi, who is now an investigator at the National Institute on Minority Health and Health Disparities at the National Institutes of Health.
[pullquote align="left"]"E-cigarettes may introduce young adults to tobacco use, or promote dual use of cigarettes and smokeless tobacco products."[/pullquote]
Specifically, the follow-up study found that 7.4 percent of participants who had never used an e-cigarette at baseline reported subsequently using an e-cigarette, with 21.6 percent among baseline current smokers, 11.9 percent among baseline former smokers, and 2.9 percent among baseline nonsmokers reporting use.
The study showed that 2.9 percent of baseline nonsmokers in this US regional sample of young adults reported ever using e-cigarettes at follow-up, which suggested an interest in e-cigarettes among nonsmoking young adults. "This is problematic because young adults are still developing their tobacco use behaviors, and e-cigarettes may introduce young adults to tobacco use, or promote dual use of cigarettes and smokeless tobacco products," explained Dr. Choi.
Are there risks to e-cigarettes?
While the risks associated with long-term e-cigarette use are largely unknown, recent studies suggest that they can significantly increase plasma nicotine levels, which means they are potentially as addictive as cigarettes. This study also suggested that about 12 percent of former young adults smokers at baseline were re-introduced to nicotine through e-cigarettes. Dr. Choi said future prospective studies including adults of all ages are needed to confirm these finding related to e-cigarette use among nonsmokers and former smokers, and to determine the role of e-cigarettes on relapse of smoking..
This link between beliefs about e-cigarettes and subsequent experimentation can be used to guide future anti-nicotine and anti-smoking campaigns that encompass the new technology of e-cigarettes. "Understanding the specific beliefs that predict subsequent e-cigarette experimentation allows us to focus on these beliefs when designing public health messages," Dr. Choi said. "Results from this study suggest that messages about the lack of evidence on e-cigarettes being cessation aids, and the uncertainty of the risks associated with e-cigarette use, may discourage young adults, particularly young adult nonsmokers and former smokers, from experimenting with e-cigarettes."[divider]
Read the study
"Beliefs and Experimentation with Electronic Cigarettes: A Prospective Analysis Among Young Adults," by Kelvin Choi, PhD; Jean L. Forster, PhD, is published in the American Journal of Preventive Medicine, Volume 46, Issue 2 (February 2014).[divider]
Elsevier Connect Contributor
Eileen Leahy has handled media outreach for 14 years for a portfolio of Elsevier Health Sciences journals, including the American Journal of Preventive Medicine, Mayo Clinic Proceedings and The American Journal of Medicine. An experienced STM journal marketer, Eileen was responsible for the launches of numerous journals while on staff at Elsevier, most notably, the Journal of the American College of Cardiology and Gastroenterology. She continues working as an independent consultant specializing in the development and marketing of innovative online full-text publications.