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An empirically derived recommendation for the classification of body dysmorphic disorder: Findings from structural equation modeling.
PLoS One. 2020; 15(6):e0233153.Plos

Abstract

Body dysmorphic disorder (BDD), together with its subtype muscle dysmorphia (MD), has been relocated from the Somatoform Disorders category in the DSM-IV to the newly created Obsessive-Compulsive and Related Disorders category in the DSM-5. Both categorizations have been criticized, and an empirically derived classification of BDD is lacking. A community sample of N = 736 participants completed an online survey assessing different psychopathologies. Using a structural equation modeling approach, six theoretically derived models, which differed in their allocation of BDD symptoms to various factors (i.e. general psychopathology, somatoform, obsessive-compulsive and related disorders, affective, body image, and BDD model) were tested in the full sample and in a restricted sample (n = 465) which indicated primary concerns other than shape and weight. Furthermore, measurement invariance across gender was examined. Of the six models, only the body image model showed a good fit (CFI = 0.972, RMSEA = 0.049, SRMR = 0.027, TLI = 0.959), and yielded better AIC and BIC indices than the competing models. Analyses in the restricted sample replicated these findings. Analyses of measurement invariance of the body image model showed partial metric invariance across gender. The findings suggest that a body image model provides the best fit for the classification of BDD and MD. This is in line with previous studies showing strong similarities between eating disorders and BDD, including MD. Measurement invariance across gender indicates a comparable presentation and comorbid structure of BDD in males and females, which also corresponds to the equal prevalence rates of BDD across gender.

Authors+Show Affiliations

Institute of Psychology, Osnabrück University, Osnabrück, Germany.Institute of Psychology, Osnabrück University, Osnabrück, Germany.Institute of Psychology, Osnabrück University, Osnabrück, Germany.Institute of Psychology, Münster University, Münster, Germany.Department of Psychology, University of Bremen, Bremen, Germany.Institute of Psychology, Wuppertal University, Wuppertal, Germany.Institute of Psychology, Goethe University Frankfurt, Frankfurt, Germany.Institute of Psychology, Otto-Friedrich-University of Bamberg, Bamberg, Germany.Institute of Psychology, Technische Universität Braunschweig, Brunswick, Germany.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

32492037

Citation

Hartmann, Andrea Sabrina, et al. "An Empirically Derived Recommendation for the Classification of Body Dysmorphic Disorder: Findings From Structural Equation Modeling." PloS One, vol. 15, no. 6, 2020, pp. e0233153.
Hartmann AS, Staufenbiel T, Bielefeld L, et al. An empirically derived recommendation for the classification of body dysmorphic disorder: Findings from structural equation modeling. PLoS ONE. 2020;15(6):e0233153.
Hartmann, A. S., Staufenbiel, T., Bielefeld, L., Buhlmann, U., Heinrichs, N., Martin, A., Ritter, V., Kollei, I., & Grocholewski, A. (2020). An empirically derived recommendation for the classification of body dysmorphic disorder: Findings from structural equation modeling. PloS One, 15(6), e0233153. https://doi.org/10.1371/journal.pone.0233153
Hartmann AS, et al. An Empirically Derived Recommendation for the Classification of Body Dysmorphic Disorder: Findings From Structural Equation Modeling. PLoS ONE. 2020;15(6):e0233153. PubMed PMID: 32492037.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - An empirically derived recommendation for the classification of body dysmorphic disorder: Findings from structural equation modeling. AU - Hartmann,Andrea Sabrina, AU - Staufenbiel,Thomas, AU - Bielefeld,Lukas, AU - Buhlmann,Ulrike, AU - Heinrichs,Nina, AU - Martin,Alexandra, AU - Ritter,Viktoria, AU - Kollei,Ines, AU - Grocholewski,Anja, Y1 - 2020/06/03/ PY - 2019/06/04/received PY - 2020/04/29/accepted PY - 2020/6/4/entrez PY - 2020/6/4/pubmed PY - 2020/6/4/medline SP - e0233153 EP - e0233153 JF - PloS one JO - PLoS ONE VL - 15 IS - 6 N2 - Body dysmorphic disorder (BDD), together with its subtype muscle dysmorphia (MD), has been relocated from the Somatoform Disorders category in the DSM-IV to the newly created Obsessive-Compulsive and Related Disorders category in the DSM-5. Both categorizations have been criticized, and an empirically derived classification of BDD is lacking. A community sample of N = 736 participants completed an online survey assessing different psychopathologies. Using a structural equation modeling approach, six theoretically derived models, which differed in their allocation of BDD symptoms to various factors (i.e. general psychopathology, somatoform, obsessive-compulsive and related disorders, affective, body image, and BDD model) were tested in the full sample and in a restricted sample (n = 465) which indicated primary concerns other than shape and weight. Furthermore, measurement invariance across gender was examined. Of the six models, only the body image model showed a good fit (CFI = 0.972, RMSEA = 0.049, SRMR = 0.027, TLI = 0.959), and yielded better AIC and BIC indices than the competing models. Analyses in the restricted sample replicated these findings. Analyses of measurement invariance of the body image model showed partial metric invariance across gender. The findings suggest that a body image model provides the best fit for the classification of BDD and MD. This is in line with previous studies showing strong similarities between eating disorders and BDD, including MD. Measurement invariance across gender indicates a comparable presentation and comorbid structure of BDD in males and females, which also corresponds to the equal prevalence rates of BDD across gender. SN - 1932-6203 UR - https://www.unboundmedicine.com/medline/citation/32492037/An_empirically_derived_recommendation_for_the_classification_of_body_dysmorphic_disorder:_Findings_from_structural_equation_modeling L2 - https://dx.plos.org/10.1371/journal.pone.0233153 DB - PRIME DP - Unbound Medicine ER -
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