Lori Riddle-Walker1, David Veale2, Cynthia Chapman3, Frank Ogle4, Donna Rosko5, Sadia Najmi6, Lana M Walker7, Pete Maceachern8, Thomas Hicks5. 1. Argosy University, San Diego Campus, College of Behavioral Sciences, CA, USA. Electronic address: llrwalker@sbcglobal.net. 2. Institute of Psychiatry, Psychology and Neuroscience, King's College London, UK. 3. Private Practice, Carlsbad, CA, USA. 4. Private Practice, San Diego, CA, USA. 5. Argosy University, San Diego Campus, College of Behavioral Sciences, CA, USA. 6. San Diego State University, Department of Psychology CA, USA. 7. Talking Feather Communications, Surprise, AZ, USA. 8. Palomar Community College, San Marcos, CA, USA.
Abstract
This is the first randomised controlled trial to evaluate a protocol for cognitive behaviour therapy (CBT) for a Specific Phobia of Vomiting (SPOV) compared with a wait list and to use assessment scales that are specific for a SPOV. METHOD: 24 participants (23 women and 1 man) were randomly allocated to either 12 sessions of CBT or a wait list. RESULTS: At the end of the treatment, CBT was significantly more efficacious than the wait list with a large effect size (Cohen's d=1.53) on the Specific Phobia of Vomiting Inventory between the two groups after 12 sessions. Six (50%) of the participants receiving CBT achieved clinically significant change compared to 2 (16%) participants in the wait list group. Eight (58.3%) participants receiving CBT achieved reliable improvement compared to 2 (16%) participants in the wait list group. CONCLUSIONS: A SPOV is a condition treatable by CBT but further developments are required to increase efficacy.
RCT Entities:
This is the first randomised controlled trial to evaluate a protocol for cognitive behaviour therapy (CBT) for a Specific Phobia of Vomiting (SPOV) compared with a wait list and to use assessment scales that are specific for a SPOV. METHOD: 24 participants (23 women and 1 man) were randomly allocated to either 12 sessions of CBT or a wait list. RESULTS: At the end of the treatment, CBT was significantly more efficacious than the wait list with a large effect size (Cohen's d=1.53) on the Specific Phobia of Vomiting Inventory between the two groups after 12 sessions. Six (50%) of the participants receiving CBT achieved clinically significant change compared to 2 (16%) participants in the wait list group. Eight (58.3%) participants receiving CBT achieved reliable improvement compared to 2 (16%) participants in the wait list group. CONCLUSIONS: A SPOV is a condition treatable by CBT but further developments are required to increase efficacy.