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State-based markers of disordered eating symptom severity

Fuller-Tyszkiewicz, Matthew, Krug, Isabel, Smyth, Joshua .M, Fernandez-Aranda, Fernando, Treasure, Janet, Linardon, Jake, Vasa, Venkata Rajesh and Shatte, Adrian 2020, State-based markers of disordered eating symptom severity, Journal of clinical medicine, vol. 9, no. 6, pp. 1-13, doi: 10.3390/jcm9061948.

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Title State-based markers of disordered eating symptom severity
Author(s) Fuller-Tyszkiewicz, MatthewORCID iD for Fuller-Tyszkiewicz, Matthew orcid.org/0000-0003-1145-6057
Krug, Isabel
Smyth, Joshua .M
Fernandez-Aranda, Fernando
Treasure, Janet
Linardon, JakeORCID iD for Linardon, Jake orcid.org/0000-0003-4475-7139
Vasa, Venkata RajeshORCID iD for Vasa, Venkata Rajesh orcid.org/0000-0003-4805-1467
Shatte, AdrianORCID iD for Shatte, Adrian orcid.org/0000-0002-6225-9697
Journal name Journal of clinical medicine
Volume number 9
Issue number 6
Article ID 1948
Start page 1
End page 13
Total pages 13
Publisher MDPI
Place of publication Basel, Switzerland
Publication date 2020
ISSN 2077-0383
2077-0383
Keyword(s) disordered eating
ecological momentary assessment
experience sampling
state body image
within-person dynamics
Summary Recent work using naturalistic, repeated, ambulatory assessment approaches have uncovered a range of within-person mood- and body image-related dynamics (such as fluctuation of mood and body dissatisfaction) that can prospectively predict eating disorder behaviors (e.g., a binge episode following an increase in negative mood). The prognostic significance of these state-based dynamics for predicting trait-level eating disorder severity, however, remains largely unexplored. The present study uses within-person relationships among state levels of negative mood, body image, and dieting as predictors of baseline, trait-level eating pathology, captured prior to a period of state-based data capture. Two-hundred and sixty women from the general population completed baseline measures of trait eating pathology and demographics, followed by a 7 to 10-day ecological momentary assessment phase comprising items measuring state body dissatisfaction, negative mood, upward appearance comparisons, and dietary restraint administered 6 times daily. Regression-based analyses showed that, in combination, state-based dynamics accounted for 34–43% variance explained in trait eating pathology, contingent on eating disorder symptom severity. Present findings highlight the viability of within-person, state-based dynamics as predictors of baseline trait-level disordered eating severity. Longitudinal testing is needed to determine whether these dynamics account for changes in disordered eating over time.
Language eng
DOI 10.3390/jcm9061948
Indigenous content off
HERDC Research category C1 Refereed article in a scholarly journal
Free to Read? Yes
Persistent URL http://hdl.handle.net/10536/DRO/DU:30139404

Document type: Journal Article
Collections: Faculty of Health
School of Psychology
Open Access Collection
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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.