Cochrane Summaries

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School-based prevention for illicit drugs' use

Faggiano F, Vigna-Taglianti F, Versino E, Zambon A, Borraccino A, Lemma P
Published Online: 
16 July 2008

Drug addiction is a long-term problem caused by an uncontrollable compulsion to seek drugs. People may use drugs to seek an effect, to feel accepted by their peers or as a way of dealing with life's problems. Even after undertaking detoxification to reach a drug-free state, many return to opioid use. This makes it important to reduce the number of people first using drugs and to prevent transition from experimental use to addiction. For young people, peers, family and social context are strongly implicated in early drug use. Schools offer the most systematic and efficient way of reaching them. School programs can be designed to provide knowledge about the effects of drugs on the body and psychological effects, as a way of building negative attitudes toward drugs; to build individual self-esteem and self-awareness, working on psychological factors that may place people at risk of use; to teach refusal and social life skills; and to encourage alternative activities to drug use, which instil control abilities.
The review authors found 32 controlled studies, of which 29 were randomised, comparing school-based programs aimed at prevention of substance use with the usual curriculum. The 46,539 students involved were mainly in sixth or seventh grade. Programs that focused on knowledge improved drug knowledge to some degree, in six randomised trials. Social skills programs were more widely used (25 randomised trials) and effectively increased drug knowledge, decision-making skills, self-esteem, resistance to peer pressure, and drug use including of marijuana (RR 0.8) and hard drugs (heroin) (RR 0.5). The programs were mainly interactive and involved external educators in 20 randomised trials. Effects of the interventions on assertiveness, attitudes towards drugs, and intention to use drugs were not clearly different in any of the trials.
Most trials were conducted in the USA and, as a nation's social context and drug policies have a significant influence on the effectiveness of the programs, these results may not be relevant to other countries. Measures of change were often made immediately after the intervention with very little long-term follow up or investigation of peer influence, social context, and involvement of parents.

This record should be cited as: 
Faggiano F, Vigna-Taglianti F, Versino E, Zambon A, Borraccino A, Lemma P. School-based prevention for illicit drugs' use. Cochrane Database of Systematic Reviews 2005, Issue 2. Art. No.: CD003020. DOI: 10.1002/14651858.CD003020.pub2
Assessed as up to date: 
27 April 2005