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Dimensional latent structure of ICD-11 posttraumatic stress disorder, complex PTSD, and adjustment disorder: Evidence from Ghana, Kenya, and Nigeria

Charak, Ruby; Cano-Gonzalez, Ines; Shevlin, Mark; Ben-Ezra, Menachem; Karatzias, Thanos; Hyland, Philip

Authors

Ruby Charak

Ines Cano-Gonzalez

Mark Shevlin

Menachem Ben-Ezra

Philip Hyland



Abstract

With the release of ICD-11 in 2018, there has been a surge in studies examining the nosology of mental disorders, including disorders associated with stress, namely, posttraumatic stress disorder (PTSD), complex PTSD (CPTSD), and adjustment disorder (AjD). Few studies have examined the same in low- and middle-income countries that have disproportionate levels of exposure to trauma and stressors and are under-resourced in mental health services. The present study examined the latent factor structure of a joint model comprising PTSD, CPTSD, and AjD symptoms and their association with stressful and traumatic life events to assess the degree of distinctiveness between these disorders. Participants were 2,524 adults in the age range of 18-71 years (M/SDage = 30.44/8.67) from Ghana, (n = 500; 50% female), Kenya (n = 1,006; 49.8% female), and Nigeria (n = 1,018; 50% female). Findings obtained through confirmatory factor analyses indicated that a dimensional and hierarchical second-order model comprising correlated latent factors of PTSD, DSO, and AjD provided the best goodness-of-fit indices. Furthermore, it was found that stressors were positively associated with AjD and PTSD, and traumatic life events largely with PTSD. Findings support the ICD-11 classification of related-although distinct stress-related disorders in adults from three African nations.

Citation

Charak, R., Cano-Gonzalez, I., Shevlin, M., Ben-Ezra, M., Karatzias, T., & Hyland, P. (2022). Dimensional latent structure of ICD-11 posttraumatic stress disorder, complex PTSD, and adjustment disorder: Evidence from Ghana, Kenya, and Nigeria. Traumatology, 28(2), 223-234. https://doi.org/10.1037/trm0000311

Journal Article Type Article
Acceptance Date Feb 11, 2021
Publication Date 2022
Deposit Date Feb 23, 2021
Publicly Available Date Feb 23, 2021
Print ISSN 1534-7656
Publisher American Psychological Association
Peer Reviewed Peer Reviewed
Volume 28
Issue 2
Pages 223-234
DOI https://doi.org/10.1037/trm0000311
Keywords ICD-11, PTSD, Complex PTSD, Adjustment Disorder, Africa
Public URL http://researchrepository.napier.ac.uk/Output/2746046

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