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Weight gain trajectories during outpatient family‐based treatment for adolescents with anorexia nervosa
Author(s) -
Lebow Jocelyn,
Sim Leslie,
Crosby Ross D.,
Goldschmidt Andrea B.,
Le Grange Daniel,
Accurso Erin C.
Publication year - 2019
Publication title -
international journal of eating disorders
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.785
H-Index - 138
eISSN - 1098-108X
pISSN - 0276-3478
DOI - 10.1002/eat.23000
Subject(s) - weight gain , anorexia nervosa , percentile , eating disorders , medicine , pediatrics , psychology , body weight , psychiatry , statistics , mathematics
Objective Given that weight gain patterns in adolescents receiving outpatient Family‐Based Treatment (FBT) have not been characterized, the purpose of this study was to examine trajectories of weight gain in a group of adolescent patients with a restrictive eating disorder [e.g., anorexia nervosa (AN) and atypical AN] receiving FBT. This study also examined the association of patient characteristics with weight gain trajectories, including age, diagnosis, weight suppression, presenting BMI‐for‐age percentile, and eating pathology. Method Latent growth mixture modeling was used to identify distinct weight trajectories, as defined by change in BMI‐for‐age percentile, for 153 adolescents with AN or atypical AN, receiving FBT. Results There were five distinct weight gain trajectory profiles for adolescents receiving FBT for a restrictive eating disorder. Younger age and greater weight suppression were associated with more rapid weight gain trajectories. A pattern of slow and consistent weight gain was associated with older age and less eating pathology. Discussion There was considerable variability in weight gain trajectories in youth receiving outpatient FBT for a restrictive eating disorder. This suggests that patients' presenting information can be used to inform expectations regarding weight gain trajectories.