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Does the size of a binge matter?

E M Pratt1, S H Niego, W S Agras

  • 1Department of Psychology, Rutgers University, Piscataway, New Jersey, USA.

The International Journal of Eating Disorders
|September 19, 1998
PubMed
Summary

This study found objective and subjective binge eating episodes in women with bulimia nervosa are similar across most psychopathology measures. The findings question the diagnostic validity of the "large amount of food" criterion in DSM-IV.

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Area of Science:

  • Psychiatry
  • Clinical Psychology
  • Eating Disorders

Background:

  • Bulimia nervosa is characterized by recurrent episodes of binge eating.
  • Binge eating episodes are classified as objective (consuming a large amount of food) or subjective (feeling a loss of control).
  • The diagnostic validity of these classifications requires further investigation.

Purpose of the Study:

  • To investigate whether objective and subjective binge eating episodes differ significantly in relation to psychopathology measures.
  • To analyze these differences in a sample of women diagnosed with bulimia nervosa according to DSM-IV criteria.

Main Methods:

  • Analysis of baseline data from the Eating Disorder Examination (EDE).
  • Conversion of binge episode data into z scores.
  • Regression analyses incorporating the Structured Clinical Interview for Diagnosis of DSM-III-R (SCID) I and II disorders, EDE subscales, and psychological measures.

Main Results:

  • No significant differences were found between objective and subjective binge episodes across most psychopathology measures.
  • A single exception was noted on the "Can Do" subscale of the Self-Efficacy Questionnaire in a regression analysis of total binge episodes.

Conclusions:

  • The lack of significant differences challenges the diagnostic validity of the "large amount of food" criterion for binge eating in DSM-IV.
  • Further research is needed to refine the diagnostic criteria for binge eating episodes in eating disorders.

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