RT Journal Article T1 Changes in Body Composition in Anorexia Nervosa: Predictors of Recovery and Treatment Outcome. A1 Agüera, Zaida A1 Romero, Xandra A1 Arcelus, Jon A1 Sánchez, Isabel A1 Riesco, Nadine A1 Jiménez-Murcia, Susana A1 González-Gómez, Jana A1 Granero, Roser A1 Custal, Nuria A1 Montserrat-Gil de Bernabé, Mónica A1 Tárrega, Salomé A1 Baños, Rosa M A1 Botella, Cristina A1 Torre, Rafael de la A1 Fernández-García, José C A1 Fernández-Real, José M A1 Frühbeck, Gema A1 Gómez-Ambrosi, Javier A1 Tinahones, Francisco J A1 Crujeiras, Ana B A1 Casanueva, Felipe F A1 Menchón, José M A1 Fernández-Aranda, Fernando K1 Anorexia nerviosa K1 Tejido adiposo K1 Metabolismo basal K1 Trastorno por atracón K1 Composición corporal K1 Índice de masa corporal K1 Agua corporal K1 Impedancia eléctrica K1 Metas K1 Humanos K1 Femenino K1 Modelos logísticos K1 Resultado del tratamiento AB The restoration of body composition (BC) parameters is considered to be one of the most important goals in the treatment of patients with anorexia nervosa (AN). However, little is known about differences between AN diagnostic subtypes [restricting (AN-R) and binge/purging (AN-BP)] and weekly changes in BC during refeeding treatment. Therefore, the main objectives of our study were twofold: 1) to assess the changes in BC throughout nutritional treatment in an AN sample and 2) to analyze predictors of BC changes during treatment, as well as predictors of treatment outcome. The whole sample comprised 261 participants [118 adult females with AN (70 AN-R vs. 48 AN-BP), and 143 healthy controls]. BC was measured weekly during 15 weeks of day-hospital treatment using bioelectrical impedance analysis (BIA). Assessment measures also included the Eating Disorders Inventory-2, as well as a number of other clinical indices. Overall, the results showed that AN-R and AN-BP patients statistically differed in all BC measures at admission. However, no significant time×group interaction was found for almost all BC parameters. Significant time×group interactions were only found for basal metabolic rate (p = .041) and body mass index (BMI) (p = .035). Multiple regression models showed that the best predictors of pre-post changes in BC parameters (namely fat-free mass, muscular mass, total body water and BMI) were the baseline values of BC parameters. Stepwise predictive logistic regressions showed that only BMI and age were significantly associated with outcome, but not with the percentage of body fat. In conclusion, these data suggest that although AN patients tended to restore all BC parameters during nutritional treatment, only AN-BP patients obtained the same fat mass values as healthy controls. Put succinctly, the best predictors of changes in BC were baseline BC values, which did not, however, seem to influence treatment outcome. PB Public Library of Science YR 2015 FD 2015-11 LK http://hdl.handle.net/10668/2168 UL http://hdl.handle.net/10668/2168 LA en NO Agüera Z, Romero X, Arcelus J, Sánchez I, Riesco N, Jiménez-Murcia S, et al. Changes in Body Composition in Anorexia Nervosa: Predictors of Recovery and Treatment Outcome. PLoS ONE; 10(11):e0143012 NO Journal Article; Research Support, Non-U.S. Gov't; DS RISalud RD May 17, 2025