This clinical trial studies whether imposing higher taxes and bans on electronic cigarettes (EC) with appealing features impacts tobacco use among current and susceptible adolescents and young adults (AYA) EC users and adults who use EC or are open to EC use. ECs are currently the most popular form of nicotine or tobacco product in the United States. Compared to burned cigarette products, ECs generally pose fewer short-term harms, making them a promising tool for lowering users' exposure to toxins and cancer-causing chemicals from smoking, promoting better public health outcomes. However, evidence shows that EC marketing has increased overall initiation into nicotine use among AYAs, and that EC users are at a higher risk of becoming smokers, which could have negative public health outcomes. Therefore, understanding the public health impact of EC use and regulation remains a major goal in tobacco control research. This trial studies different scenarios which impose higher taxes or bans on ECs with appealing features. Researchers hope that by studying participant responses to the different scenarios they may be able to identify which ones best discourage EC use among AYAs while promoting adult EC users to quit smoking, which may improve public health.
AYAs aged 15-24 who are daily or nondaily users of ECs and are not smoking in the past 30 days
AYA tobacco nonusers aged 15-24 who are susceptible to EC or tobacco use (i.e., curiosity about the product, intention to try it in the near future, and likely response if a best friend were to offer them the product)
Adults aged 18+ who are daily or nondaily users of ECs and combustible tobacco in the past 30 days
Adults aged 18+ who are daily or nondaily users of combustible tobacco in the past 30 days, not currently using ECs but are open to trying ECs
None
Sequential
Discrete Choice Study
Other interventionComplete EC tax base, rate, nicotine level, and flavor VCEs
Discrete Choice Study
Other interventionComplete tiered tax condition VCEs
Discrete Choice Study
Other interventionComplete banned condition VCEs
Survey Administration
Other interventionAncillary studies
Electronic cigarette (EC) use among adolescent and young adult (AYA) current/susceptible users (Aim 1)
Will examine how tiered taxes on AYA-appealing features (flavors, product type, nicotine concentration) impact EC use among current and susceptible AYA EC users. All hypotheses will be tested using regression analyses. Will use count data models, such as the Negative Binomial model, the Poisson model, and Multiple Discrete-Continuous Extreme Value (MDCEV) Model. Will use clustered sandwich estimators and consider mixed effects, random effects, and fixed effects in the modeling to account for the hierarchical structure (participant-choice set-purchase) and correlations among choices made by the same individual (repeated measures). Analyses will also control for sociodemographic characteristics such as age, sex, race/ethnicity, income, education, tobacco use histories/status, and purchase expenditures.
Combustible tobacco smoking among AYA current/susceptible users (Aim 1)
Will examine how tiered taxes on AYA-appealing features (flavors, product type, nicotine concentration) impact combustible tobacco smoking among current and susceptible AYA EC users. All hypotheses will be tested using regression analyses. Will use count data models, such as the Negative Binomial model, the Poisson model, and MDCEV Model. Will use clustered sandwich estimators and consider mixed effects, random effects, and fixed effects in the modeling to account for the hierarchical structure (participant-choice set-purchase) and correlations among choices made by the same individual (repeated measures). Analyses will also control for sociodemographic characteristics such as age, sex, race/ethnicity, income, education, tobacco use histories/status, and purchase expenditures.
EC use among adult smokers who use or are open to ECs (Aim 2)
Will assess how tiered taxes on AYA-appealing features (flavors, product type, nicotine concentration) impact EC smoking among adult smokers who either use or are open to using ECs. All hypotheses will be tested using regression analyses. Will use count data models, such as the Negative Binomial model, the Poisson model, and MDCEV Model. Will use clustered sandwich estimators and consider mixed effects, random effects, and fixed effects in the modeling to account for the hierarchical structure (participant-choice set-purchase) and correlations among choices made by the same individual (repeated measures). Analyses will also control for sociodemographic characteristics such as age, sex, race/ethnicity, income, education, tobacco use histories/status, and purchase expenditures.
Combustible tobacco smoking among adult smokers who use or are open to ECs (Aim 2)
Will assess how tiered taxes on AYA-appealing features (flavors, product type, nicotine concentration) impact combustible tobacco smoking among adult smokers who either use or are open to using ECs. All hypotheses will be tested using regression analyses. Will use count data models, such as the Negative Binomial model, the Poisson model, and MDCEV Model. Will use clustered sandwich estimators and consider mixed effects, random effects, and fixed effects in the modeling to account for the hierarchical structure (participant-choice set-purchase) and correlations among choices made by the same individual (repeated measures). Analyses will also control for sociodemographic characteristics such as age, sex, race/ethnicity, income, education, tobacco use histories/status, and purchase expenditures.
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Ohio State University Comprehensive Cancer Center
Lead sponsor
National Cancer Institute (NCI)
Collaborator
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