Cristine D. Delnevo

Patterns of Electronic Cigarette Use Among Adults in the United States

INTRODUCTION Amid increasing rates of electronic cigarette (e-cigarette) use in the United States, there is an urgent need to monitor patterns of use at the population level in order to inform practice, policy and regulation. This article examines how patterns of e-cigarette use among adults differ between users and nonusers of cigarettes using the most current national data. METHODS We analyzed data from the 2014 National Health Interview Survey. We estimated prevalence of ever, current, and daily e-cigarette use and examined how use patterns differed by demographic subgroups and measures of cigarette smoking status that accounted for the recent availability of e-cigarettes in the US marketplace. RESULTS Current e-cigarette use is extremely low among never cigarette smokers (0.4%) and former smokers who quit cigarettes 4 or more years ago (0.8%). Although e-cigarette experimentation is most common among current cigarette smokers and young adults, daily use is highest among former smokers who quit in the past year (13.0%) and older adults. Compared to daily cigarette smokers, recently quit smokers were more than four times as likely to be daily users of e-cigarettes (AOR: 4.33 [95% CI: 3.08-6.09]). CONCLUSIONS Extremely low e-cigarette use among never-smokers and longer term former smokers suggest that e-cigarettes neither promote widespread initiation nor relapse among adults. Recognition of the heterogeneity of smokers, including the time since quitting, is critical to draw accurate conclusions about patterns of e-cigarette use at the population level and its potential for public health benefit or harm. IMPLICATIONS Data from 2014 National Health Interview Survey indicate that e-cigarettes have not been attracting adult non-smokers or promoting relapse in longer term former smokers. Moreover, the data are suggestive that some recent quitters may have done so with the assistance of e-cigarettes. Creating measures of smoking status that treat former smokers as a homogenous group is insufficient to assess the epidemiology of e-cigarette use and the potential impact on public health.

Examining market trends in the United States smokeless tobacco use: 2005–2011

Background While cigarette consumption in the USA continues to decline, promotion for and consumption of smokeless tobacco (SLT) is growing. However, little research has explored what product features are driving SLT growth, despite awareness that product-level factors may be important in SLT use. This study analyses national sales data to better understand the impact of product features on SLT sales. Methods Data on sales of SLT in US convenience stores from 2005 to 2011 were obtained from Nielsen Research Company. Each listed product was coded for attributes such as type, brand, flavouring and form to calculate their respective total sales, market share and contribution to overall SLT growth. Results Sales of moist snuff products (including snus) increased by 65.6% between 2005 and 2011. Sales of pouched and flavoured forms of moist snuff increased by 333.8% and 72.1%, respectively, and contributed to 28% and 59.4% of the total growth in the moist snuff category, respectively. Value/discount brands accounted for 42% of moist snuff sales in 2011 among the top 10 selling brands, largely driven by Grizzly. After 2 years on the national market, Camel Snus was also one of the top 10 selling moist snuff brands. Conclusions Sales of moist snuff, both overall and for particular styles, are increasing. Growing pouch use may be attributed to new SLT users, which may include cigarette smokers using them as starter SLT products. Increased sales of flavoured and discounted snuff raise concerns about use and appeal to youth. Continued surveillance of SLT sales trends is warranted.

Preference for flavoured cigar brands among youth, young adults and adults in the USA

Background While cigarette consumption in the USA continues to decline, cigar consumption has increased. Tobacco-trade publications suggest that flavoured cigars are driving the recent growth in cigar consumption. Limited survey data exist to explore flavoured cigar preferences among youth and adults. Methods This study used the 2010–2011 National Survey on Drug Use and Health (NSDUH) and Nielsen market scanner data. The NSDUH sample consisted of 6678 past 30-day cigar smokers who reported smoking a usual brand of cigars. NSDUH contains a measure on usual cigar brand smoked and was merged with Nielsen data to estimate the per cent of each cigar brands market share that is flavoured. Results Multivariate analyses indicate that youth, young adults, females, blacks, cigarette smokers, blunt users and daily cigar smokers are significantly more likely to report a usual cigar brand that is flavoured. Preference for a usual brand that produces flavoured cigars decreases significantly with age. Conclusions This study finds recent growth in flavoured cigar consumption and preference among youth and young adults for cigar brands that are flavoured. These findings underscore the need to expand monitoring of product attributes as well as individual-level cigar use behaviours captured through population surveillance.

Exploring the relationship between race/ethnicity, menthol smoking, and cessation, in a nationally representative sample of adults.

OBJECTIVE To explore the relationship between race/ethnicity, menthol smoking, and cessation in a nationally representative sample of adults. METHODS Data from the 2005 U.S. National Health Interview Survey was analyzed. Our analyses were restricted to 7815 white, black, and Hispanic current and former cigarette smokers who indicated that they do not currently use other tobacco products and have made a quit attempt. We used multiple logistic regressions to test the relationship of menthol smoking and cessation controlling for various factors. RESULTS Significant interaction effects were found indicating that the association between menthol smoking and cessation differs between whites and blacks, and whites and Hispanics. When blacks and Hispanics are collapsed as non-white, we found that non-white menthol smokers were significantly less likely to have quit smoking (adjusted odds ratio=0.55, p<0.01) compared to their non-menthol smoking counterparts. In contrast, among whites, menthol smokers were more likely to be former smokers than nonmenthol smokers (adjusted odds ratio=1.17, p<0.05). CONCLUSION Our findings provide some support for the hypothesis that menthol smoking can lead to poorer cessation outcomes, but only for non-white smokers.

Monitoring the tobacco use epidemic III: The host: data sources and methodological challenges.

OBJECTIVE This Host paper (III of V) reviews key surveillance and evaluation systems that monitor the characteristics, attitudes and behaviors of tobacco users that are crucial for tobacco control efforts. METHODS We summarize and expand on the recommendations from the Host Working Group of the National Tobacco Monitoring, Research and Evaluation Workshop. We also discuss research challenges and make additional recommendations for improving tobacco control surveillance and evaluation. RESULTS We reviewed 10 major US surveys that collect data on tobacco use. A great deal of data is collected but gaps exist. Data collection on cigars, smokeless tobacco, brand, menthols, and PREPs is sparse and infrequent. Also, a number of factors, including, but not limited to, changes in US population composition, declines in survey response rates, and increases in cell phone use present research challenges that may impact the ongoing utility of these systems. CONCLUSIONS Although the field of tobacco control research is an advanced area of public health, improvements in data systems are necessary to accurately evaluate progress and continue tobacco control gains. A coordinated surveillance and evaluation network would increase efficiency and improve the overall utility, quality and timeliness of the current data systems.

Dispelling myths about gender differences in smoking cessation: population data from the USA, Canada and Britain

Objectives Based mainly on findings from clinical settings, it has been claimed that women are less likely than men to quit smoking successfully. If true, this would have important implications for tobacco control interventions. The authors aimed to test this possibility using data from general population surveys. Methods The authors used data from major national surveys conducted in 2006–2007 in the USA (Tobacco Use Supplement to the Current Population Survey), Canada (Canadian Tobacco Use Monitoring Survey) and the UK (General Household Survey) to estimate rates of smoking cessation by age in men and women. Results The authors found a pattern of gender differences in smoking cessation which was consistent across countries. Below age 50, women were more likely to have given up smoking completely than men, while among older age groups, men were more likely to have quit than women. Across all age groups, there was relatively little difference in cessation between the sexes. Conclusions Conclusions about gender differences in smoking cessation should be based on evidence from the general population rather than from atypical clinical samples. This study has found convincing evidence that men in general are not more likely to quit smoking successfully than women.

“A Whole ’Nother Smoke” or a Cigarette in Disguise: How RJ Reynolds Reframed the Image of Little Cigars

Present-day consumption of little cigars rivals that of the early 1970s when sales of little cigars boomed. This boom was largely attributed to RJ Reynolds, and documents reveal how and why they became a powerful force in little cigar sales. RJ Reynolds designed a little cigar, Winchesters, for cigarette smokers and produced one as close to a cigarette as legally possible. Initially, RJ Reynolds intended to capitalize on the cigarette advertising broadcast ban, but the price and tax structure was more critical to Winchesters success. Today, the tobacco industry is fighting again to sustain its unique application of federal definitions for little cigars. Regulatory efforts are needed to close taxation loopholes for the little cigar.

Smoking-Cessation Prevalence Among U.S. Smokers of Menthol Versus Non-Menthol Cigarettes

BACKGROUND The Food and Drug Administration currently is assessing the public health impact of menthol cigarettes. Whether menthol cigarettes pose increased barriers to quitting is a critical issue because previous declines in smoking prevalence have stalled. PURPOSE To explore whether menthol cigarette smokers are less likely to quit than non-menthol smokers at the population level and whether this relationship differs by race/ethnicity. METHODS Cross-sectional analyses of the 2003 and 2006/2007 Tobacco Use Supplement to the Current Population Survey were conducted in 2010. Multiple logistic regressions were used to calculate the adjusted odds of cessation for menthol smoking relative to non-menthol smoking. Five different sample restrictions were used to assess the robustness of the findings. RESULTS In the broadest sample restriction, menthol smokers were less likely to have quit smoking (AOR=0.91, 95% CI=0.87, 0.96). This relationship holds among whites (AOR=0.93, 95% CI=0.88, 0.98) and blacks (AOR=0.81, 95% CI=0.67, 0.98). The magnitude of the relationship among Hispanics was similar to that among whites, but differed by Hispanic origin. Among those of Mexican origin, the AOR for menthol smokers was protective but not significant (AOR=1.29, 95% CI=0.99, 1.61), whereas among those of Puerto Rican origin, menthol smokers were less likely to have quit (AOR=0.57, 95% CI=0.37, 0.87). These findings were robust and significant in four of five sample restrictions. CONCLUSIONS Smoking menthol cigarettes is associated with decreased cessation at the population level, and this association is more pronounced among black and Puerto Rican smokers. These findings support the recent calls to ban menthol flavoring in cigarettes.

Emerging tobacco products: hookah use among New Jersey youth.

OBJECTIVE A national surveillance system to track hookah use by adolescents does not exist. A growing body of evidence suggests that high school-aged students are experimenting with this form of tobacco. This study adds to the current literature by providing prevalence estimates and factors associated with hookah use among New Jersey high school students. METHOD This study explores factors associated with hookah use using 2008 NJYTS data. The 2008 NJYTS was a self-reported, paper-and-pencil, cross-sectional survey of a representative sample of 3010 high school students. RESULTS 9.7% of NJ high school students are current hookah users. Predictors of hookah use included those who identified as Asian, concurrent tobacco users, perceiving that cigars are safer than cigarettes, or perceiving that smoking looks cool. CONCLUSION The prevalence of hookah use, higher likelihood of concurrent tobacco use among hookah users, and misperceptions of safety and popularity of hookah among NJ adolescents are cause for concern and action. The development and regular implementation of standardized hookah prevalence questions into our national and state surveillance systems, as well as targeted, state-specific youth education and prevention activities are essential to thwart this growing public health concern.

Young Adults’ Risk Perceptions of Various Tobacco Products Relative to Cigarettes: Results From the National Young Adult Health Survey

Objectives. Tobacco product risk perceptions may influence whether individuals use those products instead of or in addition to regular cigarettes. This study aimed to explore risk perceptions of various tobacco products relative to traditional cigarettes with young adults, a group with higher rates of tobacco use. Method. We examined risk perception responses among a nationally representative sample of young adults (age 18-34 years; n = 2,871, including tobacco and non–tobacco users) from the 2011 National Young Adult Health Survey. Results. Most (57.8%) respondents believed that e-cigarettes were less risky than cigarettes. Respondents were more likely to rate combustible products hookah (24.5%) and cigars (13.9%) as being less risky compared to noncombustible snus (10%) and other smokeless tobacco (SLT) products (7.1%) relative to cigarettes. Few (2.5%) rated menthol cigarettes as less risky. For e-cigarettes, hookah, and SLT, less risky beliefs were significantly higher among ever or current versus never product users. Between 22% and 33% of all respondents believed that SLT, snus, menthol cigarettes, and cigars were more risky than cigarettes, but differences in this belief between current and nonusers of these products were small and insignificant. Younger young adults were more likely to rate e-cigarettes and hookah as being “less risky” and rate cigars and SLT as being “more risky” than older young adults. Conclusion. The public’s views of comparative tobacco risk perceptions vary widely by tobacco product type and age-group. While “less risky” perceptions may be associated with product use, perceptions that products are “more risky” than cigarettes may not necessarily dissuade people from their use.