•  Home
  • Library
  • DRO home
Submit research Contact DRO

DRO

Openly accessible

A new integrative model for the co-occurrence of non-suicidal self-injury behaviours and eating disorder symptoms

Krug, I, Arroyo, MD, Giles, S, Dang, AB, Kiropoulos, L, De Paoli, T, Buck, K, Treasure, J and Fuller-Tyszkiewicz, Matthew 2021, A new integrative model for the co-occurrence of non-suicidal self-injury behaviours and eating disorder symptoms, Journal of Eating Disorders, vol. 9, no. 1, pp. 1-17, doi: 10.1186/s40337-021-00508-3.

Attached Files
Name Description MIMEType Size Downloads

Title A new integrative model for the co-occurrence of non-suicidal self-injury behaviours and eating disorder symptoms
Author(s) Krug, I
Arroyo, MD
Giles, S
Dang, AB
Kiropoulos, L
De Paoli, T
Buck, K
Treasure, J
Fuller-Tyszkiewicz, MatthewORCID iD for Fuller-Tyszkiewicz, Matthew orcid.org/0000-0003-1145-6057
Journal name Journal of Eating Disorders
Volume number 9
Issue number 1
Article ID ARTN 153
Start page 1
End page 17
Total pages 17
Publisher BMC
Place of publication London, Eng.
Publication date 2021
ISSN 2050-2974
2050-2974
Keyword(s) Affect dysregulation
Attachment
Body dissatisfaction
BORDERLINE PERSONALITY-DISORDER
Disordered eating
DYSREGULATION
EARLY MALADAPTIVE SCHEMAS
Eating disorder
Impulsivity
Life Sciences & Biomedicine
MAINTENANCE
MEDIATING ROLE
Non-suicidal self-injury
Nutrition & Dietetics
PREVALENCE
Psychiatry
Psychology
Psychology, Clinical
SAMPLE
Schemas
Science & Technology
Self-esteem
Social Sciences
TRAITS
Summary Abstract Objective The high co-occurrence of non-suicidal self-injury (NSSI) behaviours and eating disorder (ED) symptoms suggests these conditions share common aetiological processes. We assessed a new integrative model of shared factors for NSSI and ED symptoms, where affect dysregulation, impulsivity, self-esteem, and body dissatisfaction mediated the relationship between insecure attachment and maladaptive schemas and NSSI and ED symptoms. A further aim of the study was to assess whether the model behaved similarly across a clinical eating disorder (ED) and a community sample. Method 123 females with a lifetime ED diagnosis and 531 female individuals from the community completed an online survey, which included measures assessing the variables of interest. A cross-sectional single time point analysis was used. Results Invariance testing indicated that the model was structurally non-invariant (different across groups). The proposed integrative model was a good fit for the ED group, but for the community sample only a revised model reached an acceptable fit. Both attachment and maladaptive schemas, included early in the model, were implicated in the pathways leading to ED and NSSI symptoms in the ED and community groups. In the community group, impulsivity, a mediator, was a shared predictor for NSSI and bulimic symptoms. No other mediating variables were shared by NSSI and ED symptoms in the two groups. Overall, the proposed model explained slightly more variance for the ED group relative to the community group in drive for thinness (R2 = .57 vs .51) and NSSI (R2 = .29 vs .24) but less variance in bulimic symptoms (R2 = .33 vs .39). Conclusion We conclude that the current model provides only limited support for explaining the comorbidity between NSSI and ED symptoms. It is vital to consider both common (e.g., attachment and maladaptive schemas) and specific factors (e.g., impulsivity) to better understand the pathways that lead to the co-occurrence of NSSI and ED symptoms. A new integrative model assessed whether emotion dysregulation, impulsivity, self-esteem, and body dissatisfaction were mediators in the relationship between insecure attachment and maladaptive beliefs about the world and the self and subsequent eating disorder and self-harm symptoms. A further aim was to assess whether the proposed model differed between a clinical eating disorder and a community sample. All participants were female and included 123 patients with a lifetime eating disorder and 531 individuals from the community. Participating individuals completed an online survey at one timepoint, which included measures assessing the variables of interest. The findings of the current study indicated that the proposed model was a good match for the clinical eating disorder sample, but for the community sample only a revised model yielded acceptable statistical fit. Both insecure attachment and maladaptive beliefs about the world and the self, included early in the model, were indirectly related to eating disorder and self-harm symptoms for both the eating disorder and the community groups. Impulsivity, a mediator, was the only shared predictor for self-harm, and bulimic symptoms in the community group. We conclude that the current model provides only limited support for explaining the comorbidity between self-harming behaviours and disordered eating symptoms.
Language eng
DOI 10.1186/s40337-021-00508-3
Indigenous content off
Field of Research 1111 Nutrition and Dietetics
1701 Psychology
HERDC Research category C1 Refereed article in a scholarly journal
Free to Read? Yes
Persistent URL http://hdl.handle.net/10536/DRO/DU:30159658

Document type: Journal Article
Collections: Faculty of Health
School of Psychology
Open Access Collection
Related Links
Link Description
Link to full-text (open access)  
Connect to Elements publication management system
Go to link with your DU access privileges
 
Connect to link resolver
 
Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved.

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.

Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 1 times in TR Web of Science
Scopus Citation Count Cited 1 times in Scopus Google Scholar Search Google Scholar
Access Statistics: 41 Abstract Views, 0 File Downloads  -  Detailed Statistics
Created: Mon, 29 Nov 2021, 13:04:11 EST

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.