Midwestern Prevention Project (MPP)
Problems addressed
Effectiveness

Effective

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Effective

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Description

This is a drug abuse prevention program for children and adolescents between 10 and 14 years of age. The objective is to prevent or reduce the consumption of substances that are considered a “gateway” (alcohol, tobacco, and cannabis).
It applies different strategies in an attempt to cover the various areas that influence the lives of the participants, such as school, family, community, and mass media, which requires coordinated actions and communication among various segments: school principals, teachers, parents, and student leaders.
The mass media component aims to promote the program’s anti-drug message through various channels, such as television, radio, and newspapers. Mass media programs were used during all the years of the program. The other components were introduced sequentially and gradually (one per year).

Impact evaluations

An impact evaluation revealed that the program reduced smoking prevalence by 30% among youth who received the intervention [1].
Another study identified a reduction in cigarette smoking, but the effects did not last beyond six months. For alcohol consumption, the study indicated significant reductions among youth over a period of one and a half years, but these were not sustained thereafter. The results did not indicate sufficient evidence of a significant reduction in cannabis use among youth who participated in the program [2].

Bibliographic reference

[1] Pentz, M. A., MacKinnon, D. P., Flay, B. R., Hansen, W. B., Johnson, C. A. y Dwyer, J. H. (1989). Primary prevention of chronic diseases in adolescence: Effects of the Midwestern Prevention Project on tobacco use. American Journal of Epidemiology, 130(4), 713–724. https://doi.org/10.1093/oxfordjournals.aje.a115393

[2] Chou, C. P., Montgomery, S., Pentz, M. A., Rohrbach, L. A., Johnson, C. A., Flay, B. R. y MacKinnon, D. P. (1998). Effects of a community-based prevention program on decreasing drug use in high-risk adolescents. American Journal of Public Health, 88(6), 944–948. https://doi.org/10.2105/AJPH.88.6.944

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