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Nora M. Laskowski, Georg Halbeisen, Karsten Braks, Thomas J. Huber, Georgios Paslakis

• \(\bf Background\) Previous investigations on the Eating Disorder Examination-Questionnaire (EDE-Q) factor structures in men have been restricted to non-clinical settings, limiting conclusions about the factorial validity in men with eating disorders (ED). This study aimed to examine the factor structure of the German EDE-Q in a clinical group of adult men with diagnosed ED. \(\bf Methods\) ED symptoms were assessed using the validated German version of the EDE-Q. Exploratory factor analysis (EFA) using principal-axis factoring based on polychoric correlations was conducted for the full sample (\(\it N\) = 188) using Varimax-Rotation with Kaiser-Normalization. \(\bf Results\) Horn's parallel analysis suggested a five-factor solution with an explained variance of 68%. The EFA factors were labeled "Restraint" (items 1, 3–6), "Body Dissatisfaction" (items 25–28), "Weight Concern" (items 10–12, 20), "Preoccupation" (items 7 and 8), and "Importance" (items 22 and 23). Items 2, 9, 19, 21, and 24 were excluded due to low communalities. \(\bf Conclusions\) Factors associated with body concerns and body dissatisfaction in adult men with ED are not fully represented in the EDE-Q. This could be due to differences in body ideals in men, e.g., the underestimation of the role of concerns about musculature. Consequently, it may be useful to apply the 17-item five-factor structure of the EDE-Q presented here to adult men with diagnosed ED.