Schneider, SC and Baillie, AJ and Mond, J and Turner, CM and Hudson, JL, The classification of body dysmorphic disorder symptoms in male and female adolescents, Journal of Affective Disorders, 225 pp. 429-437. ISSN 0165-0327 (2018) [Refereed Article]
© 2017 Published by Elsevier B.V.
Background: Body dysmorphic disorder (BDD) was categorised in DSM-5 within the newly created ‘obsessive-compulsive and related disorders’ chapter, however this classification remains subject to debate. Confirmatory factor analysis was used to test competing models of the co-occurrence of symptoms of BDD, obsessive-compulsive disorder, unipolar depression, anxiety, and eating disorders in a community sample of adolescents, and to explore potential sex differences in these models.
Methods: Self-report questionnaires assessing disorder symptoms were completed by 3149 Australian adolescents. The fit of correlated factor models was calculated separately in males and females, and measurement invariance testing compared parameters of the best-fitting model between males and females.
Results: All theoretical models of the classification of BDD had poor fit to the data. Good fit was found for a novel model where BDD symptoms formed a distinct latent factor, correlated with affective disorder and eating disorder latent factors. Metric non-invariance was found between males and females, and the majority of factor loadings differed between males and females. Correlations between some latent factors also differed by sex.
Limitations: Only cross-sectional data were collected, and the study did not assess a broad range of DSM-5 defined eating disorder symptoms or other disorders in the DSM-5 obsessive-compulsive and related disorders chapter.
Conclusions: This study is the first to statistically evaluate competing models of BDD classification. The findings highlight the unique features of BDD and its associations with affective and eating disorders. Future studies examining the classification of BDD should consider developmental and sex differences in their models.
|Item Type:||Refereed Article|
|Keywords:||body dysmorphic disorder, adolescent, comorbidity, confirmatory factor analysis, sex differences|
|Research Division:||Medical and Health Sciences|
|Research Group:||Public Health and Health Services|
|Research Field:||Mental Health|
|Objective Group:||Public Health (excl. Specific Population Health)|
|Objective Field:||Mental Health|
|UTAS Author:||Mond, J (Dr Jon Mond)|
|Web of Science® Times Cited:||5|
|Deposited By:||Centre for Rural Health|
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