Objective: The objective of this research was to ascertain whether geographical accessibility (in conjunction with other patient characteristics) reduced the probability of participating in alcoholism aftercare treatment.Methods: A sample of 4,621 United States male veterans discharged with an outpatient appointment from one of 33 Department of Veterans Affairs inpatient Alcohol Dependency Treatment Programs was identified. The outpatient records of each patient were obtained to determine whether aftercare services were utilized following discharge. Binary choice analysis was used to model the decision to enter aftercare treatment as a function of travel distance, age, marital status, ethnicity, severity of illness, and urbanization.Results: Travel barriers significantly reduced aftercare participation, especially for elderly and rural veterans. Both younger and older veterans were less likely to keep their aftercare appointment than middle-aged veterans. Married patients were more likely to utilize outpatient services than unmarried patients. Ethnic status, severity of illness, and urban size all negatively affected the likelihood of appointment attendance.Conclusions: The results obtained from this analysis can be effectively used to identify which patients are not likely to enter aftercare alcoholism treatment. The discharge plans of patients at risk for appointment noncompliance should be given special attention since aftercare has been shown to improve treatment outcome. Moreover, because alcoholism treatment reduces the utilization of other medical services, promoting continuity of care should help lower the overall costs of providing health care to alcoholic patients.