The distribution of Psychosis, ICD-11 PTSD and Complex PTSD symptoms among a trauma-exposed UK general population sample.

Rachel Frost, Maria Vang, Thanos Karatzias, Philip Hyland, M Shevlin

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Abstract

Objective: To evaluate the distribution of psychosis and traumatic stress symptoms using the ICD-11 conceptualisation of PTSD and CPTSD.
Method: A latent class analysis was conducted on psychosis symptoms, PTSD and CPTSD among a random adult sample from the UK general population with a history of traumatic events (N = 1,051).
Results: Six classes were identified; a low-symptom class, a PTSD-class, a CPTSD-class, a class characterized by disturbances s in self-organization alone as well as two classes characterized by CPTSD and various levels of psychosis symptom endorsement. Cumulative childhood trauma predicted membership of the PTSD, CPTSD and comorbid classes in a dose-response manner with the strongest effects observed for classes characterised by comorbid symptoms.
Conclusion: The present study confirms the co-occurrence of psychosis symptoms and ICD-11 PTSD and CPTSD. Psychosis symptoms did not emerge in isolation from traumatic stress symptoms, underpinning the need for a greater recognition of psychosis symptoms as part of the broader clinical picture among trauma-exposed populations.
Original languageEnglish
JournalPsychosis: Psychological, Social and Integrative Approaches
Publication statusAccepted/In press - 29 May 2019

Keywords

  • psychosis
  • PTSD
  • ;childhood trauma
  • Complex PTSD

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