Effectiveness of an empirically based treatment for panic disorder delivered in a service clinic setting: 1-year follow-up.

The transportability of cognitive-behavioral therapy (CBT) for panic disorder to a community mental health center (CMHC) setting at 1-year follow-up was examined by comparing CMHC treatment outcome data with results obtained in controlled efficacy studies. Participants were 81 CMHC clients with a primary diagnosis of panic disorder with or without agoraphobia who completed CBT for panic disorder. Despite differences in settings, clients, and treatment providers, both the magnitude of change from pretreatment to follow-up and the maintenance of change from posttreatment to follow-up in the CMHC sample were comparable with the parallel findings in the efficacy studies. At follow-up, 89% of the CMHC clients were panic free and a substantial proportion of the sample successfully discontinued benzodiazepine use.