Youth and young adult flavour expectancies for new 'non-menthol' cigarettes introduced following California's ban on flavoured tobacco products.

Background: Following California's statewide law prohibiting the sale of flavoured tobacco products, some cigarette brands introduced new variants advertised as non-menthol, yet featuring design and text commonly found in menthol cigarette marketing.

Methods: Data are from the February-May 2023 wave of the Tobacco Epidemic Evaluation Network (TEEN+) national probability-based survey (aged 13-25 years). Respondents (N=10 217) were shown images of two (of four) 'new non-menthol' brand ads or packaging and two comparators ('classic' non-menthol and menthol cigarette brands).

E-Cigarette Brand Use by Race/Ethnicity in a US Sample of Adolescent and Young Adult E-Cigarette Users, 2022-2023.

Introduction: To determine whether e-cigarette brand use varies according to race/ethnicity among adolescent and young adult e-cigarette users.

Aims And Methods: Data are from a cross-sectional online survey of respondents aged 15-24 years (January 2022-June 2023; 300 unique respondents/week). The analytic sample was restricted to current e-cigarette users (n = 6387).

Not-so-disposable e-cigarettes: Methods young people use to discard single-use e-cigarettes.

Background And Aims: To date, most tobacco product waste research focuses on cigarettes. Less is known about single-use 'disposable' e-cigarette waste, which contains several hazardous and toxic materials. This exploratory study examines self-reported methods for discarding disposables among a national sample of US adolescents and young adults.

Developing a National Longitudinal Tobacco Cohort of Youth and Young Adults: The Tobacco Epidemic Evaluation Network (TEEN+) Study.

Introduction: Timely and relevant data are critical to monitoring the rapidly changing youth vaping epidemic and for understanding the prevalence, patterns of use, knowledge, and perceptions of tobacco products. While e-cigarettes have been the most used tobacco product among youth for nearly a decade, new nicotine delivery products continue to be introduced to the US market. Flavored tobacco products, including flavored e-cigarettes, menthol cigarettes, and flavored cigars, drive disparities in use by young people.

Pathways to prevent e-cigarette use: Examining the effectiveness of the truth antivaping campaign.

Objective: Mass media campaigns have been designed to counter a rise in e-cigarette use among young people. No studies to date have established pathways from campaign exposure to e-cigarette use behaviors. This study examines the mechanisms through which exposure to the truth® campaign may prevent the progression of e-cigarette use among youth and young adults.

Effects of a Social Media Intervention on Vaping Intentions: Randomized Dose-Response Experiment.

Background: e-Cigarette use, especially by young adults, is at unacceptably high levels and represents a public health risk factor. Digital media are increasingly being used to deliver antivaping campaigns, but little is known about their effectiveness or the dose-response effects of content delivery.

Objective: The objectives of this study were to evaluate (1) the effectiveness of a 60-day antivaping social media intervention in changing vaping use intentions and beliefs related to the stimulus content and (2) the dose-response effects of varying levels of exposure to the intervention on vaping outcomes, including anti-industry beliefs, vaping intentions, and other attitudes and beliefs related to vaping.

Improving the Efficiency of Inferences From Hybrid Samples for Effective Health Surveillance Surveys: Comprehensive Review of Quantitative Methods.

Background: Increasingly, survey researchers rely on hybrid samples to improve coverage and increase the number of respondents by combining independent samples. For instance, it is possible to combine 2 probability samples with one relying on telephone and another on mail. More commonly, however, researchers are now supplementing probability samples with those from online panels that are less costly.

Pathways to Quitting E-cigarettes Among Youth and Young Adults: Evidence From the truth® Campaign.

Purpose: This study examines the pathways through which e-cigarette users' awareness of the truth® campaign influences e-cigarette use frequency over time.

Design And Setting: Data included four waves (2020-2023) of the Truth Longitudinal Cohort, a probability-based, nationally representative survey.

Participants: The analytic sample was 15-24-year-olds who reported current e-cigarette use at baseline (N = 718).

Corrigendum: Early evidence of flavored tobacco product restrictions in Massachusetts and New York State.

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Youth and Young Adult Blunt Use Predicts Progression to Other Nicotine Product Use in the United States.

Background: Little cigars or cigarillos (LCCs) are frequently modified to smoke cannabis ("blunts") by youth and young adults. This study investigated whether young blunt users who are otherwise nicotine-naïve are more likely to initiate other tobacco products compared to never blunt users.

Methods And Materials: Data were from four waves of the Truth Longitudinal Cohort (TLC), a national probability-based sample of youth and young adults (aged 15-24 years) in the United States (Wave 1: January-April 2017; Wave 2: February-May 2018; Wave 3: February-May 2019; Wave 4: September-December 2019).

Early evidence of flavored tobacco product restrictions in Massachusetts and New York State.

Introduction: With many US states and localities enacting policies that restrict flavored e-cigarette sales, evaluation of these restrictions is critical to inform future efforts. This study analyzed both survey and retail scanner data to assess early-stage impacts of flavored tobacco sales restrictions in Massachusetts and New York State on e-cigarettes sales and product use among young people.

Methods: This study uses state-level e-cigarette retail sales data and survey data from youth and young adults (aged 13-24 years).

Reducing e-cigarette use among youth and young adults: evidence of the truth campaign's impact.

Background: Mass media campaigns have been shown to be effective in reducing cigarette use. However, evidence is limited for whether campaigns can shift e-cigarette use among youth and young adults (YYA). To assess the impact of the truth anti-e-cigarette campaign, which focused on the effects of vaping on mental health, this study examines the relationship between campaign awareness and e-cigarette behaviour among YYA.

Patterns of oral nicotine pouch use among U.S. adolescents and young adults.

Oral nicotine pouches are gaining popularity, yet national-level research on youth and young adult use is still needed. We examined characteristics of those who use oral nicotine pouches and trends in use over time in a sample of U.S.

Content analysis of tobacco imagery in popular music Videos, 2018-2021.

Exposure to tobacco imagery in movies and television has been identified as a key factor to youth smoking initiation (Davis, 2008; Bennett et al., 2020). This study aims to investigate the prevalence of tobacco imagery in popular music videos from 2018 to 2021.

Checkpoint Travel Numbers as a Proxy Variable in Population-Based Studies During the COVID-19 Pandemic: Validation Study.

Background: The COVID-19 pandemic had wide-ranging systemic impacts, with implications for social and behavioral factors in human health. The pandemic may introduce history bias in population-level research studies of other health topics during the COVID-19 period.

Objective: We sought to identify and validate an accessible, flexible measure to serve as a covariate in research spanning the COVID-19 pandemic period.

Use of a multi-method approach to rapidly assess the impact of public health policies at the state and local level: a case study of flavored e-cigarette policies.

Background: E-cigarettes are the most-commonly used tobacco product by youth since 2014. To prevent youth access and use of e-cigarettes, many U.S.

A resurgence of e-cigarette use among adolescents and young adults late in the COVID-19 pandemic.

Background: Early in the COVID-19 pandemic, e-cigarette use significantly declined among young people due, in part, to losing access through social sources. As the pandemic progressed, adolescents and young adults gained opportunities to resume contact with peers. This study sought to determine whether e-cigarette use has returned to pre-pandemic levels among adolescents and young adults.

Heating Up: How Early Twitter Marketing Gave Rise to Organic Word-of-Mouth About Heated Tobacco Products.

Social media are an important marketing platform for emerging tobacco products. Heated tobacco products (HTPs) have been introduced in a limited number of local test markets in the United States as potentially reduced-exposure tobacco products. HTPs can be used to heat tobacco as well as marijuana.

Perceived Sensory Characteristics of Blended and Ambiguous "Concept" Flavors Among Adolescent and Young Adult E-cigarette Users.

Introduction: Flavors with names describing blended tastes/sensations or with ambiguous terminology ("concept flavors") are available on the e-cigarette market.

Aims And Methods: This study investigates adolescent and young adult use and sensory perceptions of blended and concept flavors. Current e-cigarette users aged 15-24 years (N = 2281) completed an online convenience sample survey (October 20-November 23, 2020) and rated the sensory attributes (fruity, cooling, sweet, and minty) of their current flavor(s) using nine-point scales.

Relative increases in direct-to-consumer menthol ads following 2020 FDA guidance on flavoured e-cigarettes.

Objective: To examine potential changes in email and direct mail advertisements for flavoured e-cigarettes following the 2020 Food and Drug Administration (FDA) flavour guidance.

Methods: Digital copies of e-cigarette advertisements were obtained from Mintel Comperemedia (November 2019-May 2020) and coded for the presence of flavours. Χ tests were used to determine changes in the prevalence of email and direct mail advertisements for e-cigarettes with menthol, non-menthol and no flavours.

Influence of Flavors and Nicotine Concentration on Nicotine Dependence in Adolescent and Young Adult E-Cigarette Users.

The objective of this study is to examine the relationships between e-cigarette flavors, nicotine concentration, and their interaction on measures of nicotine dependence. Survey data are drawn from a cross-sectional convenience sample of past 30-day e-cigarette users aged 15 to 24 years (N = 2037) collected between October 2020 and November 2020. Participants were asked to provide information about the e-cigarette products they used most regularly.

Early evidence of the associations between an anti-e-cigarette mass media campaign and e-cigarette knowledge and attitudes: results from a cross-sectional study of youth and young adults.

Objective: Antismoking mass media campaigns have contributed to significant declines in combustible tobacco use among young people. This study evaluates a national anti-e-cigarette campaign to determine its association with knowledge, attitudes and beliefs in the context of increasing e-cigarette use in the USA.

Methods: A national sample of respondents aged 15-24 years (n=8421) was drawn from a repeated cross-sectional online panel survey (220 participants/week) (October 2018 to December 2019).