Binge eating disorder: a stable syndrome

Area of Science:

• Psychiatry and Behavioral Sciences
• Clinical Psychology
• Genetics and Epidemiology of Eating Disorders

Background:

• Binge eating disorder (BED) is a significant eating disorder with considerable public health implications.
• Understanding the chronicity and stability of BED is crucial for effective treatment and management strategies.
• Previous research has established the clinical validity of anorexia nervosa (AN) and bulimia nervosa (BN) as distinct disorders.

Purpose of the Study:

• To assess the longitudinal stability and chronicity of binge eating disorder (BED) within a community-based sample.
• To compare the duration of illness for BED against other eating disorders, specifically anorexia nervosa (AN) and bulimia nervosa (BN).
• To determine if BED represents a stable psychiatric syndrome comparable to AN and BN.

Main Methods:

• A family study design was employed, recruiting 888 first-degree relatives from 300 overweight or obese probands.
• Probands were categorized into two groups: 150 with BED and 150 with no lifetime eating disorder diagnosis.
• Lifetime duration of illness was compared among relatives diagnosed with BED (N=131), BN (N=17), and AN (N=18).

Main Results:

• The mean lifetime duration of BED was significantly longer (14.4 years) compared to BN (5.8 years) and AN (5.9 years).
• These duration differences remained consistent across analyses restricted to female relatives or relatives of probands without a lifetime eating disorder.
• The findings indicate a substantial and prolonged course for BED in the studied population.

Conclusions:

• Binge eating disorder (BED) demonstrates a chronicity comparable to anorexia nervosa (AN) and bulimia nervosa (BN).
• The extended duration suggests that BED is a stable and persistent syndrome requiring appropriate clinical attention.
• These results underscore the need for long-term management approaches for individuals with BED.