Research has indicated that early sexual intercourse in high school is associated with poor health outcomes such as unintentional pregnancy and sexually transmitted infections (STIs). What is lacking in the research is an understanding of the relationship between even earlier sexual initiation (i.e., before the age of 13) and alcohol, tobacco, and…

This study evaluated emerging adult effects of the PROmoting School-Community-University Partnerships to Enhance Resilience (PROSPER) universal prevention delivery system implemented in middle schools. Twenty-eight rural school districts were randomized to intervention and control conditions, with 1985 nineteen-year-old participants (90.6% White,…

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…

The aim of this study was to determine if adolescents' scores on a 2-item underage alcohol use screener predict risky consequences of past-year alcohol use and other health risk behaviors in a nonclinical, school-based sample of adolescents. A predominantly minority sample of 756 middle and high school students completed in-school tablet-based…

This study explores the links between cyberbullying victimization and a set of health risk behaviors associated with juvenile delinquency (cigarette smoking, marijuana usage, alcohol usage, and sexual frequency). These links are examined with data from the 2015 Youth Risk Behavior Survey (n = 9,122). Using cluster analysis, respondents are…

Antisocial peer behavior and low parental knowledge of adolescents' activities are key interpersonal risk factors for adolescent substance use. However, how the magnitude of associations between these risk factors and substance use may vary across adolescence remains less well understood. The present study examined the age-varying associations of…

Background: This study examined how risk perceptions and social norms around e-cigarettes are associated with susceptibility (i.e., openness to using the product in the next 12 months) of e-cigarettes and smoking among adolescents. Methods: We analyzed data from a 2016 representative survey of 8,718 middle school students in Mexico. The study…

Adolescents' attitudes predict sexual behavior; therefore, attitudes are targeted in sexually transmitted infection (STI) and pregnancy prevention programs. However, attitudes and behaviors do not always align. Young adolescents who have had penile vaginal intercourse (PVI) and have attitudes supportive of PVI have two risk factors for future…

Poor sleep in adolescents is a global health problem. This study examined Chinese adolescents' sleep quality types by using a person-centered approach and examined the associations of adolescent sleep quality types with psychological characteristics and health risk behaviors. Using data from 1,310 Chinese adolescents (53.7% male; mean age = 13.48…

Background: Transgender adolescents face tremendous social stress in families and schools, which often leads to behavioral health disparities. This study assessed whether rates of substance use were higher among transgender adolescents when compared to nontransgender adolescents. Methods: This study is a secondary data analysis of the 2013-2015…

The Montana Youth Risk Behavior Survey (YRBS) is administered by the Montana Office of Public Instruction every two years to students in grades 7 through 12. The purpose of the survey is 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…

Background: Susceptibility to future smoking, positive beliefs about smoking, and perceptions of antismoking norms are all factors that are associated with future smoking. In previous research, smoking media literacy (SML) has been associated with these variables, even when controlling for other known risk factors for smoking. However, these…

Background: Being a victim of bullying is associated with greater risk of youth substance use; however, research specifically examining whether tobacco use behaviors differ among adolescents who were bullied at school only, electronically only, or both at school and electronically is limited. Methods: We examined the associations between being a…

The purpose of our study was to investigate the potential relationships in Hispanic adolescents (n = 575) between substance use and/or risky sexual behaviors and (a) physical activity (PA) and (b) sedentary time and (c) the moderating effect of gender. PA levels and sedentary behaviors were assessed using the PA Questionnaire for Adolescents,…

Purpose: Peer crowds are macro-level subcultures that share similarities across geographic areas. Over the past decade, dozens of studies have explored the association between adolescent peer crowds and risk behaviors, and how they can inform public health efforts. However, despite the interest, researchers have not yet reported on crowd size and…