Transdiagnostic vulnerability factors in eating disorders: A network analysis.

Area of Science:

• Psychiatry
• Clinical Psychology
• Network Science

Background:

• Eating disorder (ED) symptoms and transdiagnostic vulnerabilities are key to ED etiology and maintenance.
• Existing network models of EDs have primarily focused on symptoms within specific disorders, neglecting transdiagnostic factors.

Purpose of the Study:

• To investigate network relationships among core ED symptoms, comorbid depression and anxiety, and vulnerability/protective mechanisms.
• To explore the interconnectedness of psychological factors in a large sample of treatment-seeking ED patients.

Main Methods:

• Utilized a regularized partial correlation network analysis on data from 2302 ED patients.
• Assessed network centrality (interconnectivity) and predictability (overall symptom inter-relationship magnitude).
• Included core ED symptoms, depression, anxiety, personality traits, maladaptive schemas, perfectionism, and resilience.

Main Results:

• Identified overvigilance, excessive emotion/feeling inhibition, interoceptive awareness, and perfectionism as central nodes in the network.
• These central variables demonstrated significant interconnectivity and predictability within the eating disorder network.

Conclusions:

• Excessive control of bodily aspects via dietary restraint and heightened interoceptive awareness may be critical for ED vulnerability.
• Findings suggest these constructs warrant further research for improved understanding and treatment of EDs.
• All data and code are available via the Open Science Framework.