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As publication of DSM-V draws near, research is needed to validate the diagnostic scheme for binge eating disorder (BED). Shape and weight overvaluation has stimulated considerable debate in this regard, given associations with psychosocial impairment and poor treatment outcome in BED. This study sought to further explore the convergent validity and diagnostic specificity of shape and weight overvaluation in BED. A total of 160 women with BED, and 108 women with non-eating disordered psychiatric disorders were recruited from the community. Women with BED were classified as more or less severe based on a global measure of eating-related psychopathology; subsequent receiver operating characteristics analysis determined that a threshold of at least "moderate" overvaluation best predicted membership into a more severe group. BED participants with threshold overvaluation exhibited poorer psychosocial functioning than those with subthreshold overvaluation, as well as participants with other psychiatric disorders. Discriminant function analysis revealed that threshold overvaluation predicted a diagnosis of BED versus other psychiatric disorder with 67.7% accuracy. Results suggest that shape and weight overvaluation is a useful diagnostic specifier in BED. Continued research is warranted to examine its predictive validity in natural course and treatment outcome studies.

Original publication

DOI

10.1016/j.brat.2009.10.008

Type

Journal article

Journal

Behav Res Ther

Publication Date

03/2010

Volume

48

Pages

187 - 193

Keywords

Adolescent, Adult, Binge-Eating Disorder, Body Image, Body Mass Index, Body Weight, Discriminant Analysis, Female, Humans, Interview, Psychological, Mental Disorders, Multivariate Analysis, Patient Acceptance of Health Care, Psychiatric Status Rating Scales, ROC Curve, Self Concept, Socioeconomic Factors, Surveys and Questionnaires, Young Adult