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Abstract Specific Food Addiction Phenotypes Using Sociodemographic and Clinical Clustering Analysis
Susana Jimenez-Murcia1,2,3, Fernando Fernandez-Aranda1,2,3, Roser Granero2,4, Zaida Aguera1,2, Trevor Steward1,2, Isabel Sanchez1, Nadine Riesco1, Gemma Mestre-Bach1,2, José M Menchón1,3,5
1Department of Psychiatry, University Hospital of Bellvitge-IDIBELL, , Barcelona, Spain/2Ciber Fisiopatologia Obesidad y Nutrición (CIBERObn), Instituto Salud Carlos III, Barcelona, Spain/3Department of Clinical Sciences, School of Medicine, University of Barcelona, Barcelona, Spain/4Department of Psychobiology and Methodology. University Autònoma of Barcelona, Spain., Barcelona, Spain/5Ciber Mental Health (CIBERsam) Instituto Salud Carlos III, Barcelona, Spain

Introduction: Food addiction has been associated with greater levels of psychopathology and impulsivity, but no study to date has transdiagnositically considered food addiction correlates in eating disorder (ED) patients using clustering.   Methods: A total sample of 290 participants [140 with bulimia nervosa, 45 with binge eating disorder, 70 with other specified feeding or eating disorder and 35 with obesity] was included. All participants completed the Temperament and Character Inventory-Revised, the Eating Disorder Inventory-2, the Symptom Checklist-90-Revised and the Yale Food Addiction Scale (YFAS 2.0). Results: Three clusters were identified. Cluster 1, labeled here the adaptive cluster, was characterized by a high prevalence of obese subjects (without ED) and low levels of ED severity and general psychopathology. Cluster 2, the moderate cluster, was less functional than Cluster 1, showed a high prevalence of BED and OSFED, and moderate levels of ED severity and an intermediate position in psychopathology levels compared to Clusters 1 and 3. Finally, Cluster 3, the dysfunctional cluster, was characterized by the highest prevalence of bulimia nervosa and the highest scores in ED severity and general psychopathology, and more dysfunctional personality traits. Conclusions: This study identified three distinct clusters of ED patients with food addiction. Future studies should address whether food addiction categories are indicative of therapy outcome.