The effectiveness of routinely delivered cognitive behavioural therapy for obsessive-compulsive disorder: a benchmarking study.

OBJECTIVES: There is often difficulty in generalizing the results of randomized controlled trials (RCTs) to routine clinical practice given the rigid design features of such studies. The purpose of this study is to describe the effectiveness of routinely delivered, formulation-based cognitive behavioural therapy (CBT) within a publicly funded clinic for adults with obsessive-compulsive disorder (OCD) and offer a comparison against the outcomes achieved in efficacy studies for the same population. METHOD: Practice-based prospective study. Routine data collected from a National Health Service out-patient clinic for adult clients with OCD is benchmarked against the findings of RCTs. The comparison RCTs were identified using a systematic review methodology. RESULTS: The mean (95% confidence interval) change in Yale-Brown Obsessive Compulsive Scale score pre- to post-therapy in the Sheffield clinic was 10.2 (7.1 - 13.3), which compares well with changes of 11.4 (10.5 - 12.2) for exposure and response prevention trials, 12.9 (11.2 - 14.7) for cognitive therapy trials, and 10.6 (8.5 - 12.8) for CBT trials. The Sheffield results fell within the benchmarks derived from the included RCTs. CONCLUSION: These results indicate that CBT for adults with OCD delivered outside the constraints of a clinical trial is equivalently effective but that this conclusion should be tested further on a larger group of patients.

An evaluation of large group CBT psycho-education for anxiety disorders delivered in routine practice.

OBJECTIVE: To determine the clinical utility and acceptability of a brief CBT psycho-educational course delivered in an NHS psychotherapy service. METHODS: All patients referred, found suitable for CBT, and who had an anxiety disorder, were invited to enrol in a psycho-education course, delivered in an outpatient mental health clinic by two mental health nurses with post-registration training in CBT. There were up to 24 patients in each course. Outcome measures used were CORE-OM and Fear Questionnaire administered pre-course and at 12-week follow-up and Client Satisfaction Questionnaire administered post-course. RESULTS: One-hundred and ninety one patients were referred. Of these 120 remained in contact with the service to the follow-up meeting. Ninety-seven patients were discharged at the follow-up point and 92 requested further individual psychotherapy. A number of patients made a clinical and reliable change as measured by CORE-OM and Fear Questionnaire. One-hundred and two patients completed the CSQ-8 reporting high satisfaction with the intervention. CONCLUSIONS: The intervention appears to be helpful for a number of patients and largely acceptable for most patients that attend. PRACTICE IMPLICATIONS: Large group psycho-educational interventions for anxiety disorders could be increasingly used as a method of delivering low intensity treatments within a stepped care model of the treatment of anxiety disorders. The intervention is relatively simple to deliver and potentially could be delivered by primary care clinicians.