Katarina Prnjak1, Deborah Mitchison2,3, Scott Griffiths4, Jonathan Mond2,5, Nicole Gideon6, Lucy Serpell7,8, Phillipa Hay2,9. 1. School of Medicine, Western Sydney University, Sydney, Australia. katarinaprnjak@gmail.com. 2. School of Medicine, Western Sydney University, Sydney, Australia. 3. Centre for Emotional Health, Department of Psychology, Macquarie University, Sydney, Australia. 4. Physical Appearance Research Team, Melbourne School of Psychological Sciences, University of Melbourne, Melbourne, Australia. 5. Centre for Rural Health, University of Tasmania, Launceston, TAS, Australia. 6. Suffolk Family Focus Psychology Service, Norfolk and Suffolk NHS Foundation Trust, Suffolk, UK. 7. Research Department of Clinical, Educational and Health Psychology, University College London, London, UK. 8. North East London NHS Foundation Trust, Essex, UK. 9. Camden and Campbelltown Hospitals, SWSLHD, Campbelltown, Australia.
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.
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.
Authors: Samantha L Hahn; Niko Kaciroti; Daniel Eisenberg; Heidi M Weeks; Katherine W Bauer; Kendrin R Sonneville Journal: J Acad Nutr Diet Date: 2021-08-20 Impact factor: 5.234