The purpose of this study is to investigate how the use of flavored e-cigarettes varies between youth (12-17 years old), young adults (18-29 years old), and older adults (30 + years old). Cross-sectional surveys of school-going youth (n = 3907) and young adult college students (n = 5482) in Texas, and young adults and older adults (n = 6051) nationwide were administered in 2014-2015. Proportions and 95% confidence intervals were used to describe the percentage of e-cigarette use at initiation and in the past 30 days that was flavored, among current e-cigarette users. Chi-square tests were applied to examine differences by combustible tobacco product use and demographic factors. Most e-cigarette users said their first and "usual" e-cigarettes were flavored. At initiation, the majority of Texas school-going youth (98%), Texas young adult college students (95%), and young adults (71.2%) nationwide said their first e-cigarettes were flavored to taste like something other than tobacco, compared to 44.1% of older adults nationwide. Fruit and candy flavors predominated for all groups; and, for youth, flavors were an especially salient reason to use e-cigarettes. Among adults, the use of tobacco flavor at initiation was common among dual users (e-cigarettes + combustible tobacco), while other flavors were more common among former cigarette smokers (P = 0.03). Restricting the range of e-cigarette flavors (e.g., eliminating sweet flavors, like fruit and candy) may benefit youth and young adult prevention efforts. However, it is unclear what impact this change would have on adult smoking cessation.

Objective: We aimed to determine the potential for reductions in the prevalence of young people's e-cigarette and tobacco use if characterizing flavors were not present. Methods: Two parallel cross-sectional surveys of 2483 youth (TATAMS: Texas Adolescent Tobacco and Marketing Surveillance System) and 4326 young adults (M-PACT: Marketing and Promotions across Colleges in Texas) in Texas (Houston, Dallas/ Ft. Worth, San Antonio, Austin). Current use of e-cigarettes and other tobacco (cigarettes, cigar products, hookah, smokeless tobacco). Users were asked: "When you use [product], do you usually use any of the following flavors?" Flavored product users were asked: "Would you continue using [product] if it were not flavored?" Results: Over 80% of youth and young adult tobacco users reported using flavored tobacco. Three-fourths of flavored product users said they would no longer use the product if it was not flavored. This was highest for e-cigarettes and hookah and lowest for cigarettes. Few demographic differences in findings were observed. Conclusions: Restricting flavors in tobacco products would not eradicate e-cigarette or other tobacco use among young people, but the potential for substantial reductions in the prevalence of young people's e-cigarette and other tobacco use seems high if flavors were removed.

Purpose of Review: The purpose of this review was to describe the state-of-the-literature on research specific to cannabis vaping among youth and young adults. Recent Findings: Out of 1801 records identified, a total of 202 articles met eligibility criteria for inclusion in this review. Most of this literature (46.0% of studies) was specific to the health effects of cannabis vaping, particularly EVALI (e-cigarette and vaping associated lung injury). Other research areas identified in the review included the etiology (24.3%) and epidemiology (24.8%) of cannabis vaping, in addition to articles on regulation (8.4%) and marketing (5.5%) of the same. Summary: Cannabis vaping is increasingly common among youth and young adults and more prevalent is settings where recreational use for adults has been legalized. The literature documents a number of negative health effects of cannabis vaping for young people, along with risk factors and reasons for the same.