title: Psychological and Personality Predictors of Weight Loss and Comorbid Metabolic Changes After Bariatric Surgery.
abstract: Bariatric surgery (BS) has proven to be the most effective treatment for weight loss and for improving comorbidities in severe obesity. A comprehensive psychological assessment prior to surgery is proposed to prepare patients for a successful post-surgical outcome. Therefore, the main aim of the present study was to assess psychological and personality predictors of BS outcome. The sample comprised 139 severely obese patients who underwent BS. Assessment measures included the Eating Disorders Inventory-2, the Symptom Checklist-Revised and the Temperament and Character Inventory-Revised. Our results show that favourable BS outcome, after 2 years follow up, was associated with younger age, less depression, moderate anxiety symptoms and high cooperativeness levels. Likewise, metabolic improvements were found to be linked to younger age and certain psychopathological factors. In conclusion, our findings suggest that age, baseline body mass index, psychopathological indexes and personality traits predict successful BS outcome.
authors.affiliation: Department of Psychiatry, University Hospital of Bellvitge-IDIBELL, Barcelona, Spain.|CIBER Fisiopatologia Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Madrid, Spain.
authors.forename: Zaida
authors.initials: Z
authors.lastname: Agüera
authors.affiliation: Bariatric and Metabolic Surgery Unit, Service of General and Gastrointestinal Surgery, University Hospital of Bellvitge-IDIBELL, Barcelona, Spain.
authors.forename: Amador
authors.initials: A
authors.lastname: García-Ruiz-de-Gordejuela
authors.affiliation: Department of Endocrinology and Nutrition, University Hospital of Bellvitge-IDIBELL, Barcelona, Spain.|CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), Instituto de Salud Carlos III, Madrid, Spain.
authors.forename: Nuria
authors.initials: N
authors.lastname: Vilarrasa
authors.affiliation: Department of Psychiatry, University Hospital of Bellvitge-IDIBELL, Barcelona, Spain.
authors.forename: Isabel
authors.initials: I
authors.lastname: Sanchez
authors.affiliation: Department of Psychiatry, University Hospital of Bellvitge-IDIBELL, Barcelona, Spain.
authors.forename: Marta
authors.initials: M
authors.lastname: Baño
authors.affiliation: Department of Psychiatry, University Hospital of Bellvitge-IDIBELL, Barcelona, Spain.
authors.forename: Lucía
authors.initials: L
authors.lastname: Camacho
authors.affiliation: CIBER Fisiopatologia Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Madrid, Spain.|Department of Psychobiology and Methodology of Health Sciences, Autonomous University of Barcelona, Spain.
authors.forename: Roser
authors.initials: R
authors.lastname: Granero
authors.affiliation: Department of Psychiatry, University Hospital of Bellvitge-IDIBELL, Barcelona, Spain.|CIBER Fisiopatologia Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Madrid, Spain.|Department of Clinical Sciences, School of Medicine, University of Barcelona, Spain.
authors.forename: Susana
authors.initials: S
authors.lastname: Jiménez-Murcia
authors.affiliation: Department of Endocrinology and Nutrition, University Hospital of Bellvitge-IDIBELL, Barcelona, Spain.|Department of Clinical Sciences, School of Medicine, University of Barcelona, Spain.
authors.forename: Nuria
authors.initials: N
authors.lastname: Virgili
authors.affiliation: Department of Endocrinology and Nutrition, University Hospital of Bellvitge-IDIBELL, Barcelona, Spain.
authors.forename: Rafael
authors.initials: R
authors.lastname: Lopez-Urdiales
authors.affiliation: Dietetics and Nutrition Unit, University Hospital of Bellvitge, Barcelona, Spain.
authors.forename: Mónica Montserrat-Gil
authors.initials: MM
authors.lastname: de Bernabe
authors.affiliation: Dietetics and Nutrition Unit, University Hospital of Bellvitge, Barcelona, Spain.
authors.forename: Pilar
authors.initials: P
authors.lastname: Garrido
authors.affiliation: Department of Pneumology, University Hospital of Bellvitge, Barcelona, Spain.
authors.forename: Carmen
authors.initials: C
authors.lastname: Monasterio
authors.affiliation: Department of Psychiatry, University Hospital of Bellvitge-IDIBELL, Barcelona, Spain.
authors.forename: Trevor
authors.initials: T
authors.lastname: Steward
authors.affiliation: Bariatric and Metabolic Surgery Unit, Service of General and Gastrointestinal Surgery, University Hospital of Bellvitge-IDIBELL, Barcelona, Spain.
authors.forename: Jordi
authors.initials: J
authors.lastname: Pujol-Gebelli
authors.affiliation: Department of Psychiatry, University Hospital of Bellvitge-IDIBELL, Barcelona, Spain.|CIBER Fisiopatologia Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Madrid, Spain.|Department of Clinical Sciences, School of Medicine, University of Barcelona, Spain.
authors.forename: Fernando
authors.identifier: http://orcid.org/0000-0002-2968-9898
authors.initials: F
authors.lastname: Fernández-Aranda
authors.affiliation: Department of Psychiatry, University Hospital of Bellvitge-IDIBELL, Barcelona, Spain.|Department of Clinical Sciences, School of Medicine, University of Barcelona, Spain.|CIBER de Salud Mental (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain.
authors.forename: Jose M
authors.initials: JM
authors.lastname: Menchón
mesh_terms: D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D050110:Bariatric Surgery / Q000523:psychology*; D015992:Body Mass Index; D015897:Comorbidity; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D009767:Obesity, Morbid / Q000453:epidemiology / Q000523:psychology* / Q000601:surgery*; D010551:Personality; D011446:Prospective Studies; D011599:Psychopathology; D016896:Treatment Outcome; D015431:Weight Loss; D055815:Young Adult
keywords: bariatric surgery; obesity; outcome; personality; psychological predictors