title: Redefining phenotypes in eating disorders based on personality: a latent profile analysis.
abstract: To conduct a latent profile analysis (LPA) in eating disorder (ED) patients using temperament and character (TCI-R) measures as indicators. 1312 ED patients including those with anorexia nervosa (AN), bulimia nervosa (BN) and EDNOS were assessed. The final LPA solution was validated using demographics, clinical variables, ED symptomatology (EDI-2) and impulsive behaviors. The best-fitting model consisted of a six-profile solution using the seven subscales of the TCI-R. These profiles were labeled: "self-focused", "inhibited", "average", "impulsive", "adaptive" and "maladaptive". Validation analyses indicated that the "inhibited" and "maladaptive" profiles generally presented with the highest values for ED symptomatology and impulsive behaviors. Whereas high levels of Harm Avoidance and low levels of Novelty Seeking and Persistence characterized the "inhibited" profile, the "maladaptive" profile presented with low levels of Reward Dependence, Self-Directedness and Cooperativeness. The most favorable results on the other hand were exhibited by the "adaptive" profile, characterized by high scores on Reward Dependence, Self-Directedness, Cooperativeness and low levels on Novelty Seeking. Finally, when our six-profile solution was compared with the DSM-IV ED diagnoses, significant differences among profiles and ED diagnoses were observed. Our study shows that ED patients can be meaningfully grouped according to temperament and character.
authors.affiliation: Department of Psychiatry, University Hospital of Bellvitge-IDIBELL, Barcelona, Spain and CIBER, Fisiopatología de la Obesidad y Nutricion (CIBERObn), Instituto Carlos III, Spain.
authors.forename: Isabel
authors.initials: I
authors.lastname: Krug
authors.forename: Tammy
authors.initials: T
authors.lastname: Root
authors.forename: Cynthia
authors.initials: C
authors.lastname: Bulik
authors.forename: Roser
authors.initials: R
authors.lastname: Granero
authors.forename: Eva
authors.initials: E
authors.lastname: Penelo
authors.forename: Susana
authors.initials: S
authors.lastname: Jiménez-Murcia
authors.forename: Fernando
authors.initials: F
authors.lastname: Fernández-Aranda
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D039721:Diagnostic and Statistical Manual of Mental Disorders; D001068:Feeding and Eating Disorders / Q000145:classification / Q000175:diagnosis* / Q000523:psychology*; D005260:Female; D006801:Humans; D007175:Impulsive Behavior / Q000175:diagnosis / Q000453:epidemiology / Q000523:psychology; D010551:Personality; D010555:Personality Inventory; D010641:Phenotype; D011594:Psychometrics; D015203:Reproducibility of Results; D055815:Young Adult