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

Prnjak, K; Mitchison, D; Griffiths, S; Mond, J; Gideon, N; Serpell, L; Hay, P; (2020) Further development of the 12-item EDE-QS: identifying a cut-off for screening purposes. BMC Psychiatry , 20 (1) , Article 146. 10.1186/s12888-020-02565-5. Green open access

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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.

Type: Article
Title: Further development of the 12-item EDE-QS: identifying a cut-off for screening purposes
Location: England
Open access status: An open access version is available from UCL Discovery
DOI: 10.1186/s12888-020-02565-5
Publisher version: https://doi.org/10.1186/s12888-020-02565-5
Language: English
Additional information: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
Keywords: Discriminant validity, EDE-QS, Eating disorders, ROC analysis, Screening
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences > Clinical, Edu and Hlth Psychology
URI: https://discovery.ucl.ac.uk/id/eprint/10095330
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