Early within-person weight gain and variability during inpatient treatment for anorexia nervosa: Age-dependent effects on treatment outcome.
anorexia nervosa
body weight
eating disorder
inpatient treatment
variability
weight gain
Journal
European eating disorders review : the journal of the Eating Disorders Association
ISSN: 1099-0968
Titre abrégé: Eur Eat Disord Rev
Pays: England
ID NLM: 9436977
Informations de publication
Date de publication:
07 2022
07 2022
Historique:
revised:
31
01
2022
received:
03
09
2021
accepted:
22
02
2022
pubmed:
18
3
2022
medline:
9
6
2022
entrez:
17
3
2022
Statut:
ppublish
Résumé
Early weight gain during inpatient treatment for anorexia nervosa (AN) is a dynamic process characterised by within-person variability that may be age-dependent. We examined whether age moderates the effect of within-person weight gain and variability on treatment outcome. Within-person level estimates of N = 2881 underweight adolescents and adults with AN for daily average weight gain (linear slope) and variability (root mean squared errors) were obtained using random-effects modelling. Between-person level regression analyses were calculated to assess effects on weight, eating disorder psychopathology and attaining normal body weight (body mass index [BMI]: 18.5-25 kg/m Higher weight gain during first 2 weeks of inpatient treatment predicted higher weight, lower drive for thinness and lower body dissatisfaction at discharge, but not lower bulimic symptoms. Moreover, it predicted a higher probability of discharge weight within normal range. Younger age was associated with stronger effects of early weight gain on weight, drive for thinness and body dissatisfaction at discharge. Weight variability was not associated with any outcome. Age moderated effects of early weight gain on treatment outcomes, with larger effects for younger patients. Weight variability alone did not influence treatment across age and should be of lesser clinical concern during early inpatient treatment.
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
328-340Informations de copyright
© 2022 The Authors. European Eating Disorders Review published by Eating Disorders Association and John Wiley & Sons Ltd.
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