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

Citation

Prnjak, K and Mitchison, D and Griffiths, S and Mond, J and Gideon, N and Serpell, L and Hay, P, Further development of the 12-item EDEQS: identifying a cut-off for screening purposes, BMC Psychiatry, 20 pp. 1-7. ISSN 1471-244X (2020) [Refereed Article]


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Copyright Statement

Copyright 2020 The Authors. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/

DOI: doi:10.1186/s12888-020-02565-5

Abstract

Background: The Eating Disorder Examination Questionnaire Short (EDE-QS) was developed as a 12-item version of the Eating Disorder Examination Questionnaire (EDE-Q) with a 4-point response scale that assesses eating disorder (ED) symptoms over the preceding 7 days. It has demonstrated good psychometric properties at initial testing. The purpose of this brief report is to determine a threshold score that could be used in screening for probable 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) curve analyses.

Results: A score of 15 emerged as the threshold that ensured the best trade-off between sensitivity (.83) and specificity (.85), and good positive predictive value (.37) for the EDE-QS, with discriminatory power comparable to other ED instruments.

Conclusion: The EDE-QS appears to be an instrument with good discriminatory power that could be used for ED screening purposes.

Item Details

Item Type:Refereed Article
Keywords:EDE-QS, eating disorders, screening, ROC analysis, discriminant validity
Research Division:Health Sciences
Research Group:Health services and systems
Research Field:Health and community services
Objective Division:Health
Objective Group:Specific population health (excl. Indigenous health)
Objective Field:Neonatal and child health
UTAS Author:Mond, J (Dr Jon Mond)
ID Code:139503
Year Published:2020
Web of Science® Times Cited:7
Deposited By:UTAS Centre for Rural Health
Deposited On:2020-06-18
Last Modified:2020-07-22
Downloads:0

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