Send to:

Choose Destination
See comment in PubMed Commons below
Addiction. 2014 Jun;109(6):1031-40. doi: 10.1111/add.12526. Epub 2014 Mar 25.

Effectiveness of the 'Healthy School and Drugs' prevention programme on adolescents' substance use: a randomized clustered trial.

Author information

  • 1Behavioural Science Institute, Radboud University Nijmegen, Nijmegen, the Netherlands.



To evaluate the effectiveness of the Healthy School and Drugs programme on alcohol, tobacco and marijuana use among Dutch early adolescents.


Randomized clustered trial with two intervention conditions (i.e. e-learning and integral).


General population of 11-15-year-old adolescents in the Netherlands.


A total of 3784 students of 23 Dutch secondary schools.


Structured digital questionnaires were administered pre-intervention and at 32 months follow-up. The primary outcome measures were new incidences of alcohol (life-time and 1-month prevalence), tobacco (life-time and 1-month prevalence) and marijuana use (life-time prevalence).


Main effect analyses showed no programme effects on incidences of alcohol consumption (life-time prevalence: e-learning condition: B = 0.102, P = 0.549; integral condition: B = -0.157, P = 0.351; 1-month prevalence: e-learning condition: B = 0.191, P = 0.288; integral condition: B = -0.140, P = 0.445), tobacco consumption (life-time prevalence: e-learning condition: B = 0.164, P = 0.444; integral condition: B = 0.160, P = 0.119; 1-month prevalence: e-learning condition: B = 0.088, P = 0.746; integral condition: B = 0.261, P = 0.093), or marijuana consumption (life-time prevalence: e-learning condition: B = 0.070, P = 0.732; integral condition: B = 0.186, P = 0.214).


The non-significant impact of the Healthy School and Drugs programme (a Dutch school-based prevention programme for early adolescents) on incidences of alcohol, tobacco and marijuana use indicates that the programme is either ineffective or implemented inadequately.

© 2014 Society for the Study of Addiction.


Alcohol use; early adolescents; marijuana use; prevention; randomized clustered trial; tobacco use

[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Wiley
    Loading ...
    Write to the Help Desk