Longitudinal patterns of cannabis and tobacco co-administration and concurrent use among young adult college students.

Introduction: Co-use, including concurrent use or co-administration, of cannabis and tobacco is most prevalent in young adulthood and associated with worse health outcomes than use of either substance alone. This study examined latent classes of tobacco and cannabis concurrent use and co-administration, and transitions between classes from 2016 to 2019, among a sample of young adult college students in Texas.

Methods: Participants included 4,448 young adults (64.

Bidirectional associations between young adults' reported exposure to e-cigarette marketing and e-cigarette use.

Aims: To examine bidirectional associations between self-reported exposure to electronic nicotine delivery system (ENDS) marketing and ENDS use, over four 6-month follow-up surveys, among young adults.

Design: The Marketing and Promotions Across Colleges in Texas project (M-PACT) is a cohort study that examined exposure to tobacco marketing and tobacco use behaviors among college students in Texas, United States.

Setting And Participants: Participants were 5478 students from 24 2-year and 4-year Texas colleges.

Exposure to ENDS advertising and use of marijuana in ENDS among college students.

Background: Factors associated with marijuana use in electronic nicotine delivery systems (ENDS) are largely unknown. ENDS advertising, through subtle normative cues as well as explicit and implicit messages suggesting ENDS products are socially condoned and healthier alternatives, may influence the use of marijuana in ENDS. The aim of our study was to examine the association between exposure to ENDS advertising and subsequent use of ENDS with marijuana among college students.

Exposure to tobacco and nicotine product advertising: Associations with perceived prevalence of use among college students.

Objective: The purpose of this study was to examine the relationship between exposure to tobacco marketing and perceptions of peer tobacco use among college students.

Participants: Participants were 5,767 undergraduate students from 19 colleges/universities in the State of Texas.

Methods: Students completed an online survey, in the spring of 2016, that assessed past 30 day exposure to e-cigarette, cigar, smokeless tobacco, and traditional cigarette advertising across multiple marketing channels, past 30 day use of each product, and perceived prevalence of peer use.