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Disturbed Sleep Connects Symptoms of Posttraumatic Stress Disorder and Somatization: A Network Analysis Approach

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journal contribution
posted on 11.12.2020, 09:41 by Laurence Astill Wright, Neil P Roberts, Kali Barawi, Natalie Simon, Stanley Zammit, Eoin McElroy, Jonathan I Bisson
Posttraumatic stress disorder (PTSD) and physical health problems, particularly somatic symptom disorder, are highly comorbid. Studies have only examined this co‐occurrence at the disorder level rather than assessing the associations between specific symptoms. Using network analysis to identify symptoms that act as bridges between these disorders may allow for the development of interventions to specifically target this comorbidity. We examined the association between somatization and PTSD symptoms via network analysis. This included 349 trauma‐exposed individuals recruited through the National Centre for Mental Health PTSD cohort who completed the Clinician‐Administered PTSD Scale for DSM‐5 and the Patient Health Questionnaire–15. A total of 215 (61.6%) individuals met the DSM‐5 diagnostic criteria for PTSD. An exploratory graph analysis identified four clusters of densely connected symptoms within the overall network: PTSD, chronic pain, gastrointestinal issues, and more general somatic complaints. Sleep difficulties played a key role in bridging PTSD and somatic symptoms. Our network analysis demonstrates the distinct nature of PTSD and somatization symptoms, with this association connected by disturbed sleep.

Funding

NIHR Biomedical Research Centre, University Hospitals Bristol NHS Foundation Trust and the University of Bristol

MRC Clinical Academic Mentorship Scheme

History

Author affiliation

Department of Neuroscience, Psychology and Behaviour, College of Life Sciences

Version

VoR (Version of Record)

Published in

JOURNAL OF TRAUMATIC STRESS

Pagination

(9)

Publisher

WILEY

issn

0894-9867

eissn

1573-6598

Acceptance date

10/10/2020

Copyright date

2020

Available date

10/11/2020

Spatial coverage

United States

Language

English