Adolescent school connectedness generally protects from risk behaviors such as tobacco use; however, its relationship to e-cigarette use is unclear. This study examines the relationship between adolescent school connectedness and e-cigarette susceptibility in a diverse longitudinal sample. This secondary analysis of a school-based intervention…

Diffusion of innovations theory can be used to understand how to prevent or slow the spread of harmful behaviors, such as e-cigarette use in adolescent social networks. This study explores how different network intervention strategies could impact diffusion dynamics through network simulations based on observed social norms and e-cigarette use…

The leading cause of preventable disease, disability, and death in the United States is tobacco product use. The 2022 National Youth Tobacco Survey, which was completed in 2022, showed that the e-cigarette epidemic among youth continues to remain a public health threat. The survey revealed that over 2.5 million middle and high school students…

Background: Tobacco use is known to worsen asthma management. No studies have investigated how trends in youth tobacco use and related harm perceptions vary by asthma status and sex. This study examined these trends among Florida high school students during 2012-2018. Methods: Data from the 2012, 2014, 2016, and 2018 Florida Youth Tobacco Survey…

This study aimed to examine the efficacy of school-based e-cigarette preventive interventions via a systematic review and meta-analysis. We searched Medline, Embase, PsycINFO, Scopus, CINAHL, Cochrane, and clinical trial registries for studies published between January 2000 and June 2023 using keywords for e-cigarettes, adolescents, and school. Of…

We investigate the mechanisms by which a student's age relative to classmates (i.e., relative age) influences risky health behaviors among European adolescents. Using a two-stage least squares approach, we show that relatively young students are more prone to engage in risky behaviors. These results hold after controlling for absolute age, country…

E-cigarettes are a popular type of nicotine product among youth in the United States. Hispanic youth, one of the fastest growing populations in the United States, are second only to white youth for e-cigarette use. Analysis of the Parents' Resource Institute for Drug Education data was conducted to determine past 30-day e-cigarette use among…

This report presents findings from data collected through the Reality Now program, providing a long-term study exploring tobacco and vaping behaviours among Australian secondary school students. Conducted from 2018 to 2024, the program collected nearly 30,000 responses from students in Years 7 to 11. Using a social norms approach (SNA), the…

This study examines the independent, relative, and additive associations between both parent and peer role models and longitudinal patterns of smoking across adolescence and early adulthood. An analysis of data from the National Longitudinal Study of Adolescent to Adult Health (N = 10,166) reveals at least four distinct trajectories of smoking…

There is a public health epidemic in adolescents' use of Electronic Nicotine Delivery Systems (ENDSs), also known as electronic cigarettes, vaping products, or JUULs. However, little is known about the level of knowledge school staff have about ENDS. The purpose of this study is to examine outcomes of a nurse-led educational intervention designed…

Although the rate of sexual intercourse among adolescents has increased in Asian countries, including Korea, many sexually active adolescents still do not use contraception. The aim of this study was to identify the risk factors for contraceptive nonuse among adolescents using decision tree analysis of the 2018 Korea Youth Risk Behavior Survey…

Objectives: More than 2.5 million middle and high school students in the United States reported current use of e-cigarettes in 2022. With continued curiosity and initiation of e-cigarette use among youth, it is critical to explore new and innovative ways to communicate about the dangers of e-cigarettes. The purpose of this study was to determine…

This is a cross-sectional study conducted to examine the associations between the composition of friendship networks and health-related behaviors of 988 adolescents (11-18 years old) from Colombia. Participants were asked to self-report behaviors and to nominate their best friends. "Egocentric network analysis" (i.e., analysis of…

The Youth Risk Behavior Survey (YRBS) is an epidemiologic surveillance system that was established by the U.S. Centers for Disease Control and Prevention (CDC) to help monitor the prevalence of behaviors that not only influence youth health but also put youth at risk for the most significant health and social problems that can occur during…

Research has found that adolescents who report being gay, lesbian, or bisexual (i.e., sexual minorities) are at higher risks for using alcohol, tobacco, and other drugs (ATOD). Although there are numerous studies that have identified health disparities among sexual minority youth as a whole, few have assessed whether teens who report bisexuality…