Individual-, family-, and school-level interventions for preventing multiple risk behaviours relating to alcohol, tobacco and drug use in individuals aged 8 to 25 years

Abstract

To assess the effects of interventions at the individual, family and school level that aim to target multiple substance use behaviours (two or more from alcohol, tobacco, cannabis, other substance use) for the primary or secondary prevention of substance use and related harms in individuals aged 8 to 25.