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A network analysis of body dysmorphic and obsessive-compulsive symptoms among individuals with and without exposure to trauma

Song, LL; Peel, AJ; Veale, D; Eley, TC; Krebs, G; (2025) A network analysis of body dysmorphic and obsessive-compulsive symptoms among individuals with and without exposure to trauma. Journal of Affective Disorders , 376 pp. 206-215. 10.1016/j.jad.2025.01.146. Green open access

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Abstract

Background: BDD and OCD symptoms often co-occur, but the associations between specific symptoms remain unclear. Furthermore, current research suggests that the clinical presentation of emotional disorders can differ in individuals who self-report exposure to trauma, but it is unclear whether this extends to BDD and OCD. The current study aimed to: (a) investigate associations between individual OCD and BDD symptoms and (b) determine whether symptom networks differ in those with self-reported trauma compared to those without self-reported trauma. Methods: Participants (N = 3127) were drawn from the Genetic Links to Anxiety and Depression (GLAD) Study and had completed validated self-reported questionnaires to assess BDD and OCD symptoms, and childhood and adulthood experiences of trauma. Network analysis was used to investigate associations between seven BDD symptoms and six OCD symptom domains. Networks of reporters and non-reporters of lifetime trauma were compared using the network comparison test. Results: BDD and OCD symptoms clustered distinctively with some bridging associations between them. The strongest bridging edges highlighted an association between three core BDD symptoms and the OCD domain of obsessional thoughts. BDD and OCD networks of reporters and non-reporters of lifetime trauma did not differ. Limitations: Cross-sectional design, meaning causality cannot be inferred. Conclusions: The findings suggest that BDD and OCD symptoms cluster distinctively, with some bridging associations between core BDD symptoms and obsessional thoughts. Future research is needed to understand the mechanisms underpinning this relationship.

Type: Article
Title: A network analysis of body dysmorphic and obsessive-compulsive symptoms among individuals with and without exposure to trauma
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.jad.2025.01.146
Publisher version: https://doi.org/10.1016/j.jad.2025.01.146
Language: English
Additional information: © 2025 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
Keywords: Body dysmorphic disorder, Obsessive- compulsive disorder, Network analysis, Interpersonal trauma
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences > Clinical, Edu and Hlth Psychology
URI: https://discovery.ucl.ac.uk/id/eprint/10205057
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