Binge eating disorder in extreme obesity

Area of Science:

• Clinical Psychology
• Bariatric Surgery Research
• Eating Disorder Studies

Background:

• Binge Eating Disorder (BED) is a significant concern in extremely obese populations.
• Understanding the specific characteristics of BED in this demographic is crucial for targeted interventions.
• Gastric bypass surgery (GBP) candidates represent a population with severe obesity and potential eating disorder comorbidities.

Purpose of the Study:

• To investigate the differences between extremely obese individuals with BED and those without BED.
• To compare eating disturbances, psychiatric conditions, and health status between these groups.
• To validate the BED diagnosis within the context of severe obesity prior to GBP.

Main Methods:

• A prospective clinical comparison was conducted between BED and non-BED subjects undergoing GBP.
• Thirty-seven extremely obese subjects (BMI ≥ 40 kg/m²) were assessed.
• Utilized the Eating Disorder Examination (EDE), Three Factor Eating Questionnaire (TFEQ), SCID-IV, SF-36, and a 24-hour feeding paradigm.

Main Results:

• 25% of subjects met criteria for BED (full or partial).
• BED subjects showed higher eating concern, shape concern, and disinhibition, consuming more liquid meals.
• No differences in psychiatric morbidity were found; however, both groups had lower health status scores than US norms, with BED subjects scoring lower.

Conclusions:

• The study supports the validity of BED as a distinct category in extremely obese individuals awaiting GBP.
• BED subjects demonstrate greater eating disturbances, poorer health, and potential issues with hunger/satiety control.
• Further research is needed to understand the long-term stability of BED in this population.