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Latent Trajectories of Change in Dietary Restriction During Treatment in Avoidant/Restrictive Food Intake Disorder and Anorexia Nervosa
Journal article   Open access   Peer reviewed

Latent Trajectories of Change in Dietary Restriction During Treatment in Avoidant/Restrictive Food Intake Disorder and Anorexia Nervosa

Sophie R Abber, Emily K Presseller, Brianne N Richson, Thomas E Joiner and Christina E Wierenga
The International journal of eating disorders, v 58(4), pp 748-755
Apr 2025
DOI: https://doi.org/10.1002/eat.24382
PMID: 39831335
Featured in Collection :   UN Sustainable Development Goals @ Drexel
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https://doi.org/10.1002/eat.24382View
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Abstract

Adolescent Adult Anorexia Nervosa - diet therapy Anorexia Nervosa - therapy Avoidant Restrictive Food Intake Disorder - diet therapy Avoidant Restrictive Food Intake Disorder - therapy Diet, Reducing Female Humans Male Treatment Outcome Young Adult
Outcomes for low-weight restrictive eating disorders, including anorexia nervosa, restricting type (AN-R) and avoidant/restrictive food intake disorder (ARFID), are sub-optimal. Reducing dietary restriction is a key treatment target. Understanding heterogeneity in patterns of change in dietary restriction may aid in improving outcomes. We examined latent trajectories of change in dietary restriction during treatment and follow-up in AN-R and ARFID. Adolescents and adults with R-EDs (N = 276, 18% ARFID, 90% female, M  = 18) receiving intensive ED treatment completed assessments at five timepoints. Latent growth mixture modeling examined trajectories of change in dietary restriction, measured using the Eating Pathology Symptoms Inventory Restricting subscale. Classes were compared on clinical features at admission to determine characteristics prospectively associated with trajectory. A 3-class solution emerged: Class 1 comprising individuals with "good response" (n = 138; 33% of those with ARFID in the sample); Class 2 with "good response, rebounding" (n = 81; 41% of ARFID); and Class 3 with "gradual response, low symptoms" (n = 57; 26% of ARFID). Class 3 had lower anxiety and R-ED symptoms than Classes 1 and 2. Class 2 presented with older age than Class 1. No ARFID-specific classes emerged, underscoring similarities in response to intensive treatment between AN-R and ARFID.

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7 citations in Web of Science

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UN Sustainable Development Goals (SDGs)

This publication has contributed to the advancement of the following goals:

#5 Gender Equality
#3 Good Health and Well-Being

Source: SDGs in the Output

InCites Highlights

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Collaboration types
Domestic collaboration
Web of Science research areas
Nutrition & Dietetics
Psychiatry
Psychology
Psychology, Clinical
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