"Family risk factors in the development of adolescent substance use are: known familial substance use or abuse, and a lack of parental supervision. Protective factors are: warm and supportive family environment, prosocial family processes (rules, monitoring) and attachment."
European Monitoring Centre for Drugs and Drug Addiction (2009), Preventing later substance use disorders in at-risk children and adolescents: a review of the theory and evidence base of indicated prevention. Thematic papers. Office for Official Publications of the European Communities, Luxembourg.