Associations of cannabis product source and subsequent cannabis use among adolescents.

Background: Cannabis is obtained from a variety retail and illicit sources, with unknown implications for youth cannabis use. This study assessed whether source of obtaining cannabis was associated with future cannabis use among adolescents.

Methods: High-schoolers (N = 835) completed 3 semiannual surveys, reporting use of 7 cannabis sources (i.

Adolescent, Parent, and Provider Perspectives of a Social-Media-Based Support Tool for Parents of Teens in Treatment for Substance Use.

Adolescent substance use disorder contributes to negative psychosocial and physical health outcomes. Parents best support their child's treatment and recovery when they are equipped with knowledge and skills; however, barriers hinder parental engagement. Social-media-based groups present an opportunity for parents who may not otherwise seek support.

Bidirectional associations between e-cigarette use and alcohol use across adolescence.

Introduction: Evidence on prospective bidirectional associations between e-cigarette and alcohol use among adolescents can inform prevention and policy but is largely absent from the literature.

Methods: Data were drawn from a prospective cohort of students attending 10 Los Angeles high schools (N = 3396; baseline mean age = 14.1, SD = 0.

Digital media use and subsequent cannabis and tobacco product use initiation among adolescents.

Background: Digital media engagement, such as browsing the internet or social media posting, may be associated with cannabis and tobacco product use initiation among adolescents. Whether certain digital media exposure confers greater - or reduced - risk for specific cannabis or tobacco products is unknown.

Methods: Adolescents completed surveys on digital media and substance use every 6 months from 2015 to 2017 (4 waves).