Identifying substance abuse treatment gaps in substate areas.

Investigating concerns about uneven utilization of health services, especially affecting disadvantaged high-risk populations, the authors constructed composite indexes for identifying substance abuse treatment gaps in Rhode Island towns and multi-town planning areas. The Drug, Alcohol, and Substance Abuse Need Indexes combined multiple-year rates of substance-related deaths, hospital discharges, and arrests. These indicators were reliable and possessed convergent validity; the composite indexes were also reliable and had construct validity. Regression of treatment admissions rates on town Substance Abuse Need Index scores revealed that some areas had relative gaps in treatment services. Having an objective and validated method for identifying treatment gaps could help treatment planners ensure equal access to services throughout the state. Reducing travel to treatment facilities can increase treatment utilization and treatment retention. Copyright 2002 Elsevier Science Inc.