Perceptions of professionals regarding interventions involving family members responsible for justice-involved youth with substance use disorders in Santiago, Chile.

Background: Eliciting professionals' experiences of current drug treatment programmes can lead to improvements of these youth-centred programmes through the involvement of the concerned youths' families. We explored perceived barriers amongst professionals concerning interventions incorporating parents or guardians responsible for justice-involved youth with substance use disorders.

Methods: We conducted semi-structured in-depth interviews with fourteen female and four male professionals, each representing one of eighteen programmes under the Chilean National Drug Treatment Programme (2016-2017), who were tasked with contacting and/or intervening in the families of justice-involved youth.

Marijuana Use and Dependence in Chilean Adolescents and Its Association with Family and Peer Marijuana Use.

Purpose: The purpose of the study is to examine (1) whether family and peer marijuana use are independently related to adolescent marijuana use in Chile, (2) whether family and peer marijuana use are associated with adolescent marijuana dependence in adolescents using marijuana, and (3) whether the adolescent's age moderates the association between family or peer use and adolescent marijuana use and/or dependence.

Method: This study used data from the National Survey on Drug Use in the General Population in Chile (a cross-sectional observational study), which was conducted in 2008 and 2010 in 4413 adolescents aged 12-19. Adolescents answered questions about their past-year marijuana use and dependence (ICD-10 criteria) and the marijuana use of their family and peers.