Journal article
An exploratory investigation of predictors of outcome in face-to-face and online cognitive-behavioural therapy for bulimia nervosa
European Eating Disorders Review, Vol.30(4), pp.373-387
2022
PMID: 35474624
Abstract
Objective:
Cognitive-behavioural therapy (CBT) delivered face-to-face and via the internet reduces bulimia nervosa (BN) symptoms. However, our empirical understanding of factors affecting patient outcomes is limited.
Method:
Using data from a randomised, controlled trial comparing internet-based (CBT4BN, n = 78) with face-to-face (CBTF2F, n = 71) group CBT (97% female, M = 28 years), we examined general treatment (across conditions) and modality-specific predictors of end-treatment and 1-year outcomes (abstinence, binge-eating frequency, purging frequency).
Results:
Improved eating disorder-related quality of life (EDQOL) during treatment and follow-up predicted abstinence at end-treatment and 1-year assessments. Improved EDQOL, disordered eating cognitions, and anxiety symptoms predicted less frequent binge eating and purging. Previous CBT and being employed predicted more frequent binge eating and purging at both assessments. Higher self-transcendence and self-directedness predicted less frequent binge eating. More severe binge eating and purging at baseline and end-treatment predicted more frequent binge eating and purging at subsequent assessments. Improved EDQOL was more strongly associated with positive outcome in CBT4BN; improved depressive symptoms and health-related QOL predicted positive outcome in CBT4BN but not CBTF2F.
Discussion:
Symptom improvement and certain character traits predicted positive outcome, whereas more severe presentation and prior CBT experience predicted poorer outcome. Consideration of intreatment symptom improvement may facilitate care recommendations, particularly for internet-based modalities.
Details
- Title
- An exploratory investigation of predictors of outcome in face-to-face and online cognitive-behavioural therapy for bulimia nervosa
- Authors
- Camden E Matherne (Corresponding Author) - University of North Carolina at Chapel HillHunna Watson (Author) - Curtin UniversityDaniel B Fassnacht (Author) - Flinders UniversityKathina Ali (Author) - Flinders UniversityStephanie Zerwas (Author) - University of North Carolina at Chapel HillChristine Peat (Author) - University of North Carolina at Chapel HillCristin Runfola (Author) - Stanford University School of MedicineMichele D Levine (Author) - University of Pittsburgh School of MedicineMarsha D Marcus (Author) - University of Pittsburgh School of MedicineBenjamin Zimmer (Author) - University Hospital HeidelbergMarkus Moessner (Author) - University Hospital HeidelbergRoss Crosby (Author) - University of North DakotaCynthia M Bulik (Author) - Karolinska Institutet
- Publication details
- European Eating Disorders Review, Vol.30(4), pp.373-387
- Publisher
- John Wiley & Sons Ltd.
- DOI
- 10.1002/erv.2898
- ISSN
- 1099-0968
- PMID
- 35474624
- Organisation Unit
- School of Health - Psychology
- Language
- English
- Record Identifier
- 99726818802621
- Output Type
- Journal article
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- Domestic collaboration
- International collaboration
- Web Of Science research areas
- Psychiatry
- Psychology, Clinical
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Source: InCites