Changes in the Patterns and Characteristics of Youth ENDS Use over Time.

Research on youth use of electronic nicotine delivery systems (ENDS) has explored the correlates of initiation and use; however, little is known about the factors that predict continued youth use of ENDS. We used an ecological momentary assessment (EMA) burst design to explore both daily variability within adolescents over a two-week observation period and variability over time two years later (2018 and 2020). The contribution of device characteristics, motivations for use, contextual factors, and community factors to daily use occasions were explored.

Daily variation in the patterns and characteristics of adolescent ENDS use.

Objective: Adolescents are more likely than young adults to use electronic nicotine delivery systems (ENDS), yet most of what is known is concluded from young adult ENDS use as young adults are easier to survey. Additionally, while evidence about the prevalence and trends of adolescent ENDS use comes from cross-sectional studies, ecological momentary assessment (EMA) studies provide greater detail about the ways in which adolescents vape and the environments that are favorable to adolescent vaping, providing important guidance for policy, prevention, and intervention.

Method: We conducted a 2-week EMA study with 50 adolescents to assess behaviors, contexts, and characteristics of ENDS use.

Peer-Led Training to Reduce Alcohol Misuse and Related Harm among Greek-Affiliated Students.

High-risk alcohol use on college campuses is a significant public health concern, especially among students in fraternities and sororities. Alcohol harm-reduction programs that include protective behavioral strategies (PBSs) provide a promising approach to curb drinking among students, yet results have been inconsistent among high-risk drinkers. To evaluate the impact of a harm-reduction, peer-led training program called "Voice of Reason" (VOR) on alcohol knowledge and behaviors among students in Greek chapters.