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Further development of the 12-item EDEQS: identifying a cut-off for screening purposes

Prnjak, K, Mitchison, D, Griffiths, S, Mond, J ORCID: 0000-0002-0410-091X, Gideon, N, Serpell, L and Hay, P 2020 , 'Further development of the 12-item EDEQS: identifying a cut-off for screening purposes' , BMC Psychiatry, vol. 20 , pp. 1-7 , doi:

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Background: The Eating Disorder Examination – Questionnaire Short (EDE-QS) was developed as a 12-item versionof the Eating Disorder Examination Questionnaire (EDE-Q) with a 4-point response scale that assesses eatingdisorder (ED) symptoms over the preceding 7 days. It has demonstrated good psychometric properties at initialtesting. The purpose of this brief report is to determine a threshold score that could be used in screening forprobable ED cases in community settings.Methods: Data collected from Gideon et al. (2016) were re-analyzed. In their study, 559 participants (80.86% female;9.66% self-reported ED diagnosis) completed the EDE-Q, EDE-QS, SCOFF, and Clinical Impairment Assessment (CIA).Discriminatory power was compared between ED instruments using receiver operating characteristic (ROC) curveanalyses.Results: A score of 15 emerged as the threshold that ensured the best trade-off between sensitivity (.83) andspecificity (.85), and good positive predictive value (.37) for the EDE-QS, with discriminatory power comparable toother ED instruments.Conclusion: The EDE-QS appears to be an instrument with good discriminatory power that could be used for EDscreening purposes.

Item Type: Article
Authors/Creators:Prnjak, K and Mitchison, D and Griffiths, S and Mond, J and Gideon, N and Serpell, L and Hay, P
Keywords: EDE-QS, eating disorders, screening, ROC analysis, discriminant validity
Journal or Publication Title: BMC Psychiatry
Publisher: BioMed Central Ltd.
ISSN: 1471-244X
DOI / ID Number:
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Copyright 2020 The Authors. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0)

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