Perfectionism and impulsivity based risk profiles in eating disorders

Area of Science:

• Psychiatry
• Clinical Psychology
• Behavioral Science

Background:

• Current eating disorder (ED) classification has limitations, including symptom variability and poor treatment response prediction.
• Classifying individuals by personality traits may better reflect underlying causes of ED.

Purpose of the Study:

• To identify latent profiles of individuals with ED based on perfectionism, impulsivity, and ED symptoms.
• To explore alternative classification systems for ED beyond traditional diagnostic categories.

Main Methods:

• Latent profile analysis was conducted on a mixed sample of 274 women (164 with ED, 110 controls).
• A second analysis focused solely on the 164 individuals diagnosed with ED.
• Perfectionism facets, impulsivity, and ED symptoms were used as indicator variables.

Main Results:

• A five-class model best fit the mixed sample: moderately impulsive, high functioning, purely perfectionistic, emotionally dysregulated, and behaviorally dysregulated.
• A four-class solution emerged for the ED-only sample, merging the emotionally and behaviorally dysregulated classes.
• These profiles differentiated based on perfectionism, impulsivity, ED symptom severity, and comorbidities.

Conclusions:

• Beyond high-functioning and over/undercontrolled profiles, new undercontrolled classes emerged.
• These distinct profiles offer insights into ED etiology and may guide personalized treatment strategies.
• Understanding these personality-driven profiles can enhance treatment choice and predict response in eating disorder patients.