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Given the large increase in awareness and ever use of ENDS during this 1-year period and the unknown impact of ENDS use on cigarette smoking behaviours and long-term health, continued monitoring of these products is needed.

Awareness and ever-use of e-cigarettes increased among U.S. adults from 2010 to 2011. In 2011, approximately 1 in 5 current smokers reported having ever-used e-cigarettes. Continued surveillance of e-cigarettes is needed for public health planning.

Introduction Electronic cigarette (e-cigarette) use is increasing rapidly, and the impact on youth is unknown. We assessed associations between e-cigarette use and smoking intentions among US youth who had never smoked conventional cigarettes. Methods We analyzed data from the nationally representative 2011, 2012, and 2013 National Youth Tobacco Surveys of students in grades 6–12. Youth reporting they would definitely not smoke in the next year or if offered a cigarette by a friend were defined as not having an intention to smoke; all others were classified as having positive intention to smoke conventional cigarettes. Demographics, pro-tobacco advertisement exposure, ever use of e-cigarettes, and ever use of other combustibles (cigars, hookah, bidis, kreteks, and pipes) and noncombustibles (chewing tobacco, snuff, dip, snus, and dissolvables) were included in multivariate analyses that assessed associations with smoking intentions among never-cigarette-smoking youth. Results Between 2011 and 2013, the number of never-smoking youth who used e-cigarettes increased 3-fold, from 79,000 to more than 263,000. Intention to smoke conventional cigarettes was 43.9% among ever e-cigarette users and 21.5% among never users. Ever e-cigarette users had higher adjusted odds for having smoking intentions than never users (adjusted odds ratio = 1.70, 95% confidence interval = 1.24–2.32). Those who ever used other combustibles, ever used noncombustibles, or reported pro-tobacco advertisement exposure also had increased odds for smoking intentions. Conclusion In 2013, more than a quarter million never-smoking youth used e-cigarettes. E-cigarette use is associated with increased intentions to smoke cigarettes, and enhanced prevention efforts for youth are important for all forms of tobacco, including e-cigarettes.

BACKGROUND: Electronic cigarette (e-cigarette) use among US students increased significantly during 2011 to 2014. We examined the association between e-cigarette advertisement exposure and current e-cigarette use among US middle school and high school students.

Purpose Flavors can mask the harshness and taste of tobacco, making flavored tobacco products appealing to youth. We assessed the prevalence and correlates of flavored-little-cigar and flavored-cigarette use among U.S. middle and high school students in 2011. Methods Data were obtained from the 2011 National Youth Tobacco Survey, a nationally representative school-based survey of U.S. students in grades 6–12. National estimates of current flavored-little-cigar use, flavored-cigarette use, and combined use of either product were calculated overall and among current smokers by respondent characteristics, including sex, race/ethnicity, school level, and grade. Additionally, intention to quit tobacco and smoking frequency were assessed by flavored product use. Results The overall prevalence of current use was 4.2% for flavored cigarettes, 3.3% for flavored little cigars, and 6.3% for either product. Among current cigar smokers, 35.9% reported using flavored little cigars, and among current cigarette smokers, 35.4% reported using flavored cigarettes. Among current cigar or cigarette smokers, 42.4% reported using flavored little cigars or flavored cigarettes. Flavored product use among current smokers was higher among non-Hispanic whites than among blacks and Hispanics, higher among high school students than middle school students, and increased with grade. Among cigar smokers, prevalence of no intention to quit tobacco was higher among flavored-little-cigar users (59.7%) than nonusers (49.3%). Conclusions More than two fifths of U.S. middle and high school smokers report using flavored little cigars or flavored cigarettes, and disparities in the use of these products exist across subpopulations. Efforts are needed to reduce flavored tobacco product use among youth.

Purpose The purpose of this study was to assess patterns and trends of tobacco use among high school students to better understand which products are used individually or concurrently. Methods Data from the National Youth Tobacco Survey from 2000 through 2012 were used to assess patterns and trends of current tobacco use (cigarettes, cigars, smokeless tobacco, and other tobacco products) among U.S. high school students. We assessed use of products individually and concurrently. Results During 2000–2012, overall linear declines were observed in current use of any tobacco product from 33.6% to 20.4% (p < .05), current use of only 1 tobacco product, from 18.8% to 10.5% (p < .05), and current poly tobacco use, from 14.7% to 9.9% (p < .05), among high school students. Overall current use of only cigarettes had both a linear decline, from 14.0% to 4.7%, as well as a quadratic trend. Conclusions During 2000–2012, the most significant overall decline observed was for students who reported smoking only cigarettes. The results suggest that more data on the use of multiple tobacco products, not just cigarettes, is needed to guide tobacco prevention and control policies and programs.

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