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Muscle dysmorphia subscale of eating disorder assessment for men: validity and reliability of the Portuguese version in men across multiple ages

Published online by Cambridge University Press:  27 August 2024

A. Silva ,
A. Macedo ,
M. J. Brito ,
C. Marques ,
A. T. Pereira  and
M. Bajouco
A. Silva
Affiliation:
1Faculty of Medicine, University of Coimbra, Coimbra, Portugal
A. Macedo
Affiliation:
2Institute of Psychological Medicine, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
M. J. Brito
Affiliation:
2Institute of Psychological Medicine, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
C. Marques
Affiliation:
2Institute of Psychological Medicine, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
A. T. Pereira
Affiliation:
2Institute of Psychological Medicine, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
M. Bajouco*
Affiliation:
2Institute of Psychological Medicine, Faculty of Medicine, University of Coimbra, Coimbra, Portugal
*
*Corresponding author.

Abstract

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Introduction

Although symptom presentation varies by gender, almost all eating disorder/ED instruments have been developed and validated on females. The Eating Disorder Assessment for Men (EDAM; Stanford & Lemberg 2012) is a male specific self-report measure, composed of four sub-scales, proved to be useful to assess gender differences in ED presentations (Nagata et al. 2021). The MD comprises 5 items about the overwhelming concern with muscularity and the false perception of having an underdeveloped body.

Objectives

Having already valid measures of body image and eating behaviors in men, we now aim to analyze the psychometric properties of the Portuguese version of MD, in order to have a quick and rigorous measure of this specific construct.

Methods

Participants were 227 male individuals (mean age=30.41 years±13.96; range: 14-73 years). They answered an online survey including the preliminary DM and the Portuguese validated versions of the Eating Disorder Examination Questionnaire (EDE-Q7) and the Body Image Concern Inventory (BICI).

Results

Confirmatory Factor Analysis showed that the unidimensional model presented good fit indexes (χ2/df=.6829; RMSEA=.0000; CFI=1.00 TLI=1.01, GFI=.995). Cronbach’s alfa was .891; all the items contributed to the internal consistency and had high internal validity. Pearson correlations of DM with EDE-Q7 and BICI were significant (p<.001) and moderate-high, respectively,.384 and .522.

Conclusions

The Portuguese preliminary version of DM-EDAM demonstrated validity (construct and convergent) and reliability. can be used for clinical and research purposes, namely in an ongoing project we have in progress, about body image, disordered eating, gender and age.

Disclosure of Interest

None Declared

Type
Abstract
Information
European Psychiatry , Volume 67 , Special Issue S1: Abstracts of the 32nd European Congress of Psychiatry , April 2024 , pp. S563 - S564
Creative Commons
Creative Common License - CCCreative Common License - BY
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright
© The Author(s), 2024. Published by Cambridge University Press on behalf of European Psychiatric Association
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