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Int J Eat Disord. 2013 Jan;46(1):60-5. doi: 10.1002/eat.22040. Epub 2012 Jul 20.

DSM-5 reduces the proportion of EDNOS cases: evidence from community samples.

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  • 1Psychotherapy and Psychopathology Research Unit-CIPsi, School of Psychology, University of Minho, Braga, Portugal. pmachado@psi.uminho.pt

Abstract

OBJECTIVE:

Eating Disorder Not Otherwise Specified (EDNOS) constitute the most common eating disorder among those seeking treatment at eating disorder facilities; they are even more common among persons with eating disorders the community. This study compares the impact of applying the revised diagnostic criteria proposed by the DSM-5 workgroup, and the broad categories for the diagnosis of eating disorders (BCD-ED) proposed by Walsh and Sysko on the prevalence of EDNOS.

METHOD:

In two nationwide epidemiological studies the prevalence of eating disorders among female high school (n = 2,028) and university students (n = 1,020) was examined using DSM-IV criteria. We used a two-stage design, administering a questionnaire in the first stage and an interview in the second stage.

RESULTS:

In the combined samples 118 cases of eating disorders (DSM-IV) were detected, of which 86 were diagnosed as EDNOS (72.9%). Application of the DSM-5 criteria reduced the number of EDNOS cases to 60 (50.8%) or to 52 (44%), when using a BMI <18.5 as cutoff for "significantly low weight" criterion in AN; with the use of BCD-ED criteria, only 5 (4.2%) cases of EDNOS remained.

DISCUSSION:

Proposed criteria set for DSM-5 substantially reduce the number of EDNOS cases. However, the BCD-ED scheme further reduces its proportion, almost eliminating it.

Copyright © 2012 Wiley Periodicals, Inc.

PMID:
22815201
[PubMed - indexed for MEDLINE]
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