Nicotine and Tobacco Research最新文献

Introduction: Few longitudinal studies have examined how awareness, use of, and beliefs about electronic cigarettes (e-cigarettes) and snus change over time. We assessed these trends in a cohort of young adults from the US Midwest.

Methods: Data were from the Minnesota Adolescent Community Cohort (MACC) Study, collected annually during 2010-2013 when participants were 21-29 years old (n = 2622). Participants were asked if they had heard of and ever used e-cigarettes and snus, and the number of days they used these products in the past 30 days. Beliefs about whether these products are less harmful than cigarettes, less addictive than cigarettes, and could help people quit smoking were assessed. Repeated measures multiple linear and logistic regression models, adjusting for demographics, peer smoking and smoking status, were used to assess trends.

Results: Compared to 2010-2011, participants in 2012-2013 were five times more likely to be aware of e-cigarettes, report ever used them, and report using them in the past 30-days. Increases in e-cigarette use were observed in all smoking status. Participants were also increasingly likely to believe that e-cigarettes are less harmful than combustible cigarettes and could help people quit smoking. There was only a modest increase in awareness of and ever using snus, as well as believing snus is less harmful than combustible cigarettes. These trends did not differ by smoking status.

Conclusions: The increasingly favorable beliefs about e-cigarettes may explain the increasing prevalence of their use particularly among young adults, both among smokers and nonsmokers.

Implications: Awareness and use of e-cigarettes have increased substantially over the past few years, and positive beliefs of e-cigarettes have also become more prevalent among young adults. Meanwhile, little changes in awareness, use of, and beliefs about snus among young adults. Given the potential of these products to have both positive and negative impact on public health depending on who use them and how they are used, strategically communicating the risks associated with e-cigarettes and snus use may help minimize the burden of tobacco use at the population level.

Introduction: Waterpipe smoking is addictive and harmful. The determinants of waterpipe smoking may differ from those of cigarette smoking; therefore, behavioral approaches to support quitting may also differ between these two tobacco products. While some evidence exists on effective behavioral change techniques (BCTs) to facilitate cigarette smoking cessation, there is little research on waterpipe smoking cessation.

Methods: Twenty-four experts were selected from the author lists of peer-reviewed, randomized controlled trials on waterpipe smoking cessation. They were invited to two rounds of a consensus development exercise using modified Delphi technique. Experts ranked 55 BCTs categorized further into those that promote; "awareness of harms of waterpipe smoking and advantages of quitting" (14), "preparation and planning to quit" (29), and "relapse prevention and sustaining an ex-smoker identity" (12) on their potential effectiveness. Kendall's W statistics was used to assess agreement.

Results: Fifteen experts responded in round 1 and 14 completed both rounds. A strong consensus was achieved for BCTs that help in "relapse prevention and sustaining ex-smoker identity" (w = 0.7; p < .001) and a moderate for those that promote "awareness of harms of waterpipe smoking and advantages of quitting" (w = 0.6; p < .001) and "preparation and planning to quit" (w = 0.6; p < .001). Providing information on the consequences of waterpipe smoking and its cessation, assessing readiness and ability to quit, and making people aware of the withdrawal symptoms, were the three highest-ranking BCTs.

Conclusion: Based on expert consensus, an inventory of BCTs ordered for their potential effectiveness can be useful for health professionals offering cessation support to waterpipe smokers.

Implications: Waterpipe smoking is addictive, harmful, and gaining global popularity, particularly among youth. An expert consensus on behavior change techniques, likely to be effective in supporting waterpipe smokers to quit, has practice and research implications. Smoking cessation advisors can use these techniques to counsel waterpipe smokers who wish to quit. Behavioral and public health scientists can also use these to develop and evaluate behavioral support interventions for this client group.

Implications: More than 250 million South and South East Asians use SLT in some form. As cigarettes prices climb up all over the world, more people could potentially take up SLT, particularly in the absence of epidemiological evidence regarding the harmful effects of these products, and SLT being advocated as a means of tobacco harm reduction. Our findings are thus relevant and timely in highlighting the harmful effects of SLT use, with a potential of influencing tobacco control policies in South Asia and beyond.