High prevalence of somatisation in ICD-11 complex PTSD: a cross sectional cohort study

Astill Wright, Laurence ORCID: https://orcid.org/0000-0001-8324-1229, Roberts, Neil, Lewis, Catrin ORCID: https://orcid.org/0000-0002-3818-9377, Simon, Natalie, Hyland, Philip, Ho, Grace W. K., McElroy, Eoin and Bisson, Jonathan I. ORCID: https://orcid.org/0000-0001-5170-1243 2021. High prevalence of somatisation in ICD-11 complex PTSD: a cross sectional cohort study. Journal of Psychosomatic Research 148 , 110574. 10.1016/j.jpsychores.2021.110574

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Abstract

Background While research demonstrates that somatisation is highly correlated with post-traumatic stress disorder (PTSD), the relationship between International Classification of Diseases 11th edition (ICD-11) PTSD, complex PTSD (CPTSD) and somatisation has not previously been determined. Objective To determine the relationship between frequency and severity of somatisation and ICD-11 PTSD/CPTSD. Method This cross-sectional study included 222 individuals recruited to the National Centre for Mental Health (NCMH) PTSD cohort. We assessed rates of Patient Health Questionnaire 15 (PHQ-15) somatisation stratified by ICD-11 PTSD/CPTSD status. Path analysis was used to explore the relationship between PTSD/CPTSD and somatisation, including number of traumatic events, age, and gender as controls. Results 70% (58/83) of individuals with CPTSD had high PHQ-15 somatisation symptom severity compared with 48% (12/25) of those with PTSD (chi-square: 95.1, p value <0.001). Path analysis demonstrated that core PTSD symptoms and not disturbances in self organisation (DSO) symptoms were associated with somatisation (unstandardised coefficients: 0.616 (p-value 0.017) and − 0.012 (p-value 0.962) respectively. Conclusions Individuals with CPTSD have higher somatisation than those with PTSD. The core features of PTSD, not the DSO, characteristic of CPTSD, were associated with somatisation.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Medicine MRC Centre for Neuropsychiatric Genetics and Genomics (CNGG)
Publisher:	Elsevier
ISSN:	0022-3999
Funders:	MRC
Date of First Compliant Deposit:	13 July 2021
Date of Acceptance:	12 July 2021
Last Modified:	03 May 2023 09:11
URI:	https://orca.cardiff.ac.uk/id/eprint/142539

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