We combine a variety of census and archival data to assess the relationships between social area characteristics and substance use. We found a substantial association between social area characteristics and substance use. We focus on intra and inter community, family, school and individual domain correlations to produce a prevention need-based score to rank communities from high to low need areas. Our analyses support the general risk and protective factor model advocated by Hawkins et al. (1992). As an important outcome of this work we suggest an objective criterion for selecting variables for the final model of the social indicators; suggest a set of weights for the selected factors and validate the selected factors with regard to substance abuse by linking the social indicator database to substance abuse outcome measures from another independent database. The selection criterion was based on intra domain correlations and proved to be robust. The weights were proportional to the information conveyed by each extracted factor. Analyses of intra-domain correlations are useful in identifying the types of prevention programs needed for each municipal area. Analyses of inter-domain correlations resulted in producing an overall need score based on social area characteristics. Many of the domains revealed more than one dimension, especially the school and the community/environment domains. Our analysis supports the use of social area characteristics in predicting the need for substance abuse prevention and treatment. It also suggests cautious and well informed decisions in selecting the indicators for a need based model.
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