Length of outpatient addiction treatment and risk of rehospitalization

Greater length of outpatient treatment was significantly related to reduced rehospitalization, but only in men. The intensity (average number of visits) of outpatient treatment was not significantly related to rehospitalization. The different effect of length of outpatient treatment between the genders may be due to differences in severity of alcohol dependence, social situation, psychiatric co-morbidity, and/or the extent to which treatment met patients' needs.