AIMS
To assess the associations between types of cannabis control policies at country level and prevalence of adolescent cannabis use.
SETTING, PARTICIPANTS AND DESIGN
Multilevel logistic regressions were performed on 172,894 adolescents 15 year of age who participated in the 2001/2002, 2005/2006, or 2009/2010 cross-sectional Health Behaviour in School-Aged Children (HBSC) survey in 38 Europe...
