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

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journal contribution
posted on 2023-05-20, 15:17 authored by Prnjak, K, Mitchison, D, Griffiths, S, Jon MondJon Mond, Gideon, N, Serpell, L, Hay, P

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.


Publication title

BMC Psychiatry








School of Health Sciences


BioMed Central Ltd.

Place of publication

United Kingdom

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Copyright 2020 The Authors. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0)

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  • Open

Socio-economic Objectives

Neonatal and child health

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