Cognitive behaviour therapy response and dropout rate across purging and nonpurging bulimia nervosa and binge eating disorder

Background: With the imminent publication of the new edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5), there has been a growing interest in the study of the boundaries across the three bulimic spectrum syndromes [bulimia nervosa-purging type (BN-P), bulimia nervosa-non pu...

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Detalles Bibliográficos
Autores: Agüera, Zaida|||0000-0003-4453-4939, Riesco, Nadine|||0000-0002-6336-4907, Jiménez Murcia, Susana|||0000-0002-3596-8033, Islam, Mohammed Anisul|||0000-0001-7240-2971, Granero, Roser|||0000-0001-6308-3198, Vicente, Enrique, Peñas Lledó, Eva, Arcelus, Jon|||0000-0002-3805-0180, Sánchez Díaz, Isabel María|||0000-0001-5874-8204, Menchón Magriñá, José Manuel|||0000-0002-6231-6524, Fernández Aranda, Fernando|||0000-0002-2968-9898
Tipo de recurso: artículo
Fecha de publicación:2013
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:113644
Acceso en línea:https://ddd.uab.cat/record/113644
https://dx.doi.org/urn:doi:10.1186/1471-244X-13-285
Access Level:acceso abierto
Palabra clave:Binge eating disorder (BED)
Bulimia nervosa (BN)
Cognitive-behavioural therapy (CBT)
Classification
DSM-5
Descripción
Sumario:Background: With the imminent publication of the new edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5), there has been a growing interest in the study of the boundaries across the three bulimic spectrum syndromes [bulimia nervosa-purging type (BN-P), bulimia nervosa-non purging type (BN-NP) and binge eating disorder (BED)]. Therefore, the aims of this study were to determine differences in treatment response and dropout rates following Cognitive Behavioural Therapy (CBT) across the three bulimic-spectrum syndromes. Method: The sample comprised of 454 females (87 BED, 327 BN-P and 40 BN-NP) diagnosed according to DSM-IV-TR criteria who were treated with 22 weekly outpatient sessions of group CBT therapy. Patients were assessed before and after treatment using a food and binging/purging diary and some clinical questionnaires in the field of ED. "Full remission" was defined as total absence of binging and purging (laxatives and/or vomiting) behaviors and psychological improvement for at least 4 (consecutive). Results: Full remission rate was found to be significantly higher in BED (69.5%) than in both BN-P (p < 0.005) and BN-NP (p < 0.001), which presented no significant differences between them (30.9% and 35.5%). The rate of dropout from group CBT was also higher in BED (33.7%) than in BN-P (p < 0.001) and BN-NP (p < 0.05), which were similar (15.4% and 12.8%, respectively). Conclusions: Results suggest that purging and non-purging BN have similar treatment response and dropping out rates, whereas BED appears as a separate diagnosis with better outcome for those who complete treatment. The results support the proposed new DSM-5 classification.

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