Cognitive behaviour therapy response and dropout rate across purging and nonpurging bulimia nervosa and binge eating disorder : DSM-5 implications
Agüera, Zaida (Instituto de Salud Carlos III)
Riesco, Nadine (Hospital Universitari de Bellvitge)
Jiménez-Murcia, Susana (Institut d'Investigació Biomèdica de Bellvitge)
Islam, Mohammed Anisul (Instituto Salud Carlos III (Madrid))
Granero, Roser (Universitat Autònoma de Barcelona. Departament de Psicobiologia i de Metodologia de Ciències de la Salut)
Vicente, Enrique (Hospital Universitari de Bellvitge)
Peñas Lledó, Eva (CICAB Clinical Research Centre (Badajoz, Extremadura))
Arcelus, Jon (Leicester General Hospital (Leicester, Regne Unit))
Sánchez, Isabel (Hospital Universitari de Bellvitge)
Menchón Magriñá, José Manuel (Hospital Universitari de Bellvitge)
Fernández-Aranda, Fernando (Hospital Universitari de Bellvitge)

Fecha:	2013
Resumen:	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.
Derechos:	Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original.
Lengua:	Anglès
Documento:	Article ; recerca ; Versió publicada
Materia:	Binge eating disorder (BED) ; Bulimia nervosa (BN) ; Cognitive-behavioural therapy (CBT) ; Classification ; DSM-5
Publicado en:	BMC Psychiatry, Vol. 13, N. 285 (November 2013), p. 1-9, ISSN 1471-244X

DOI: 10.1186/1471-244X-13-285
PMID: 24200085

9 p, 277.6 KB

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