Outputs (28)

Introduction to the Special Section on Complex Posttraumatic Stress Disorder (CPTSD): The Evolution of a Disorder (2019)
Journal Article
Karatzias, T., & Levendosky, A. A. (2019). Introduction to the Special Section on Complex Posttraumatic Stress Disorder (CPTSD): The Evolution of a Disorder. Journal of Traumatic Stress, 32(6), 817-821. https://doi.org/10.1002/jts.22476

The inclusion of complex posttraumatic stress disorder (CPTSD) in the 11th revision of the International Classification of Diseases is an important development in the field of psychotraumatology. Complex PTSD was developed as a response to a clinical... Read More about Introduction to the Special Section on Complex Posttraumatic Stress Disorder (CPTSD): The Evolution of a Disorder.

ICD‐11 Posttraumatic Stress Disorder and Complex Posttraumatic Stress Disorder in the United States: A Population‐Based Study (2019)
Journal Article
Cloitre, M., Hyland, P., Bisson, J. I., Brewin, C. R., Roberts, N. P., Karatzias, T., & Shevlin, M. (2019). ICD‐11 Posttraumatic Stress Disorder and Complex Posttraumatic Stress Disorder in the United States: A Population‐Based Study. Journal of Traum

The primary aim of this study was to provide an assessment of the current prevalence rates of ICD-11 posttraumatic stress disorder (PTSD) and complex PTSD (CPTSD) among the adult population of the United States and to identify characteristics and cor... Read More about ICD‐11 Posttraumatic Stress Disorder and Complex Posttraumatic Stress Disorder in the United States: A Population‐Based Study.

Examining the Discriminant Validity of Complex Posttraumatic Stress Disorder and Borderline Personality Disorder Symptoms: Results From a United Kingdom Population Sample (2019)
Journal Article
Hyland, P., Karatzias, T., Shevlin, M., & Cloitre, M. (2019). Examining the Discriminant Validity of Complex Posttraumatic Stress Disorder and Borderline Personality Disorder Symptoms: Results From a United Kingdom Population Sample. Journal of Traumatic

Complex Posttraumatic Stress Disorder (CPTSD) was added to the diagnostic nomenclature in the 11th version of the International Classification of Diseases (ICD-11). Although considerable evidence exists supporting the construct validity of CPTSD, the... Read More about Examining the Discriminant Validity of Complex Posttraumatic Stress Disorder and Borderline Personality Disorder Symptoms: Results From a United Kingdom Population Sample.

Testing the Factor Structure of the International Trauma Questionnaire (ITQ) in African Community Samples from Kenya, Ghana, and Nigeria (2019)
Journal Article
Owczarek, M., Ben-Ezra, M., Karatzias, T., Hyland, P., Vallieres, F., & Shevlin, M. (2020). Testing the Factor Structure of the International Trauma Questionnaire (ITQ) in African Community Samples from Kenya, Ghana, and Nigeria. Journal of Loss and Traum

The aim of this study was to test the factorial structure of Posttraumatic Stress Disorder (PTSD) and Complex PTSD (CPTSD) as outlined in the 11th revision of the International Classification of Diseases (ICD-11) in three African community samples us... Read More about Testing the Factor Structure of the International Trauma Questionnaire (ITQ) in African Community Samples from Kenya, Ghana, and Nigeria.

The Rivers Centre in Scotland: An Attachment‐Based Service Model for People With Complex Posttraumatic Stress Disorder (2019)
Journal Article
Fyvie, C., Easton, P., Moreton, G., McKeever, J., & Karatzias, T. (2019). The Rivers Centre in Scotland: An Attachment‐Based Service Model for People With Complex Posttraumatic Stress Disorder. Journal of Traumatic Stress, 32(6), 864-869. https://doi.or

The Rivers Centre in Edinburgh, Scotland (United Kingdom) operated for nearly 20 years as a traditional specialist trauma service, delivering psychological therapies to an adult population affected by trauma. Embedded in a health and social care syst... Read More about The Rivers Centre in Scotland: An Attachment‐Based Service Model for People With Complex Posttraumatic Stress Disorder.

Treating Adults With Complex Posttraumatic Stress Disorder Using a Modular Approach to Treatment: Rationale, Evidence, and Directions for Future Research (2019)
Journal Article
Karatzias, T., & Cloitre, M. (2019). Treating Adults With Complex Posttraumatic Stress Disorder Using a Modular Approach to Treatment: Rationale, Evidence, and Directions for Future Research. Journal of Traumatic Stress, 32(6), 870-876. https://doi.org/10

ICD-11 complex PTSD (CPTSD) is a new condition and therefore there are as yet no clinical trials evaluating interventions for its treatment. In this paper, we provide the rationale for a flexible multi-modular approach to the treatment of CPTSD, its... Read More about Treating Adults With Complex Posttraumatic Stress Disorder Using a Modular Approach to Treatment: Rationale, Evidence, and Directions for Future Research.

Measuring ICD-11 Adjustment Disorder: The Development and Initial Validation of the International Adjustment Disorder Questionnaire (2019)
Journal Article
Shevlin, M., Hyland, P., Ben-Ezra, M., Karatzias, T., Cloitre, M., Vallières, F., …Maercker, A. (2020). Measuring ICD-11 Adjustment Disorder: The Development and Initial Validation of the International Adjustment Disorder Questionnaire. Acta Psychiatri

Background: Adjustment disorder (AjD) is one of the most frequently used diagnoses in psychiatry but a diagnostic definition for AjD was only introduced in release of the ICD-11. This study sought to develop and validate a new measure operationalizin... Read More about Measuring ICD-11 Adjustment Disorder: The Development and Initial Validation of the International Adjustment Disorder Questionnaire.

ICD-11 PTSD and complex PTSD in treatment-seeking Danish veterans: a latent profile analysis (2019)
Journal Article
Folke, S., Nielsen, A. B. S., Andersen, S. B., Karatzias, T., & Karstoft, K. (2019). ICD-11 PTSD and complex PTSD in treatment-seeking Danish veterans: a latent profile analysis. European Journal of Psychotraumatology, 10(1), Article 1686806. https://doi.

Background: The WHO International Classification of Diseases, 11th version (ICD-11), includes a trauma-related diagnosis of complex posttraumatic stress disorder (CPTSD) distinct from posttraumatic stress disorder (PTSD). Results from previous studie... Read More about ICD-11 PTSD and complex PTSD in treatment-seeking Danish veterans: a latent profile analysis.

Translation and psychometric evaluation of the Chinese Adjustment Disorder – New Module 20 (2019)
Journal Article
Lorenz, L., Ho, G. W. K., Chan, A. C. Y., Bressington, D. T., Chien, W. T., Shevlin, M., …Karatzias, T. (2020). Translation and psychometric evaluation of the Chinese Adjustment Disorder – New Module 20. International Journal of Mental Health, 49(2),

The Adjustment Disorder – New Module 20 (ADNM-20) was developed for the assessment of adjustment disorder symptoms. The aim of the present study was to translate and conduct psychometric testing of the Chinese version of the ADNM-20. The English vers... Read More about Translation and psychometric evaluation of the Chinese Adjustment Disorder – New Module 20.

Personally meaningful recovery in people with psychological trauma: Initial validity and reliability of the Individual Recovery Outcomes Counter (I.ROC) (2019)
Journal Article
Rudd, B., Karatzias, T., Bradley, A., Fyvie, C., & Hardie, S. (2020). Personally meaningful recovery in people with psychological trauma: Initial validity and reliability of the Individual Recovery Outcomes Counter (I.ROC). International Journal of Mental

I.ROC is a brief tool measuring personal recovery designed for collaborative use within support. This study aimed to investigate the psychometric properties of a self-report version of the I.ROC within a trauma population. A total of 107 adults atten... Read More about Personally meaningful recovery in people with psychological trauma: Initial validity and reliability of the Individual Recovery Outcomes Counter (I.ROC).

The relationship between ICD-11 PTSD, complex PTSD and dissociative experiences (2019)
Journal Article
Hyland, P., Shevlin, M., Fyvie, C., Cloitre, M., & Karatzias, T. (2020). The relationship between ICD-11 PTSD, complex PTSD and dissociative experiences. Journal of Trauma and Dissociation, 21(1), 62-72. https://doi.org/10.1080/15299732.2019.1675113

Debate exists in the trauma literature regarding the role of dissociation in traumatic stress disorders. With the release of the new ICD-11 diagnostic guideline for posttraumatic stress disorder (PTSD) and complex PTSD (CPTSD), this issue warrants fu... Read More about The relationship between ICD-11 PTSD, complex PTSD and dissociative experiences.

Childhood Adversity, Resilience, and Mental Health: A Sequential Mixed-Methods Study of Chinese Young Adults (2019)
Journal Article
Ho, G., Chan, A., Shevlin, M., Karatzias, T., Chan, P., & Leung, D. (2021). Childhood Adversity, Resilience, and Mental Health: A Sequential Mixed-Methods Study of Chinese Young Adults. Journal of Interpersonal Violence, 36(19-20), NP10345-NP10370. https:

Resilience is a key health protective factor for those with adverse childhood experiences (ACEs), but little research has explored how it manifests in early adulthood or across cultures. The purpose of this study was to generate a fuller understandin... Read More about Childhood Adversity, Resilience, and Mental Health: A Sequential Mixed-Methods Study of Chinese Young Adults.

Patterns of Exposure to Adverse Childhood Experiences and their Associations with Mental Health: A Survey of 1,346 University Students in East Asia (2019)
Journal Article
Ho, G. W. K., Bressington, D., Karatzias, T., Chien, W. T., Inoue, S., Yang, P. J., Chan, A. C. Y., & Hyland, P. (2020). Patterns of Exposure to Adverse Childhood Experiences and their Associations with Mental Health: A Survey of 1,346 University Students

Adverse childhood experiences (ACEs) constitute a significant global mental health burden. Prior studies typically investigated the impact of ACEs on mental health using a cumulative risk approach; most ACEs studies were also conducted in Western set... Read More about Patterns of Exposure to Adverse Childhood Experiences and their Associations with Mental Health: A Survey of 1,346 University Students in East Asia.

The mediating role of early maladaptive schemas in the relationship between childhood traumatic events and complex posttraumatic stress disorder symptoms in older adults (>64 years) (2019)
Journal Article
Vasilopoulou, E., Karatzias, T., Hyland, P., Wallace, H., & Guzman, A. (2020). The mediating role of early maladaptive schemas in the relationship between childhood traumatic events and complex posttraumatic stress disorder symptoms in older adults (>64 y

The current study investigated the mediating role of Early Maladaptive Schemas (EMS) in the association between childhood trauma and Complex PTSD (CPTSD) symptom severity in a clinical sample of 42 older adults (>64 years). It was found that EMS tota... Read More about The mediating role of early maladaptive schemas in the relationship between childhood traumatic events and complex posttraumatic stress disorder symptoms in older adults (>64 years).

The relationship between interpersonal trauma and substance misuse in pregnancy – a narrative review of the literature (2019)
Journal Article
Waddell, N., & Karatzias, T. (2019). The relationship between interpersonal trauma and substance misuse in pregnancy – a narrative review of the literature. British Journal of Midwifery, 27(9), 578-588. https://doi.org/10.12968/bjom.2019.27.9.578

Background There is a strong body of evidence supporting associations between interpersonal trauma (IPT) and substance use; however, this tends to focus on associations between childhood trauma and substance use in non-pregnant populations. Neonatal... Read More about The relationship between interpersonal trauma and substance misuse in pregnancy – a narrative review of the literature.

Multiple and interpersonal trauma are risk factors for both post‐traumatic stress disorder and borderline personality disorder: A systematic review on the traumatic backgrounds and clinical characteristics of comorbid post‐traumatic stress disorder/borderline personality disorder groups versus single‐disorder groups (2019)
Journal Article
Jowett, S., Karatzias, T., & Albert, I. (2020). Multiple and interpersonal trauma are risk factors for both post‐traumatic stress disorder and borderline personality disorder: A systematic review on the traumatic backgrounds and clinical characteristics

Background: Both BPD and PTSD are associated with exposure to traumatic events and are highly comorbid. No review to date has addressed the clinical presentations and traumatic backgrounds associated with these disorders although this work is essenti... Read More about Multiple and interpersonal trauma are risk factors for both post‐traumatic stress disorder and borderline personality disorder: A systematic review on the traumatic backgrounds and clinical characteristics of comorbid post‐traumatic stress disorder/borderline personality disorder groups versus single‐disorder groups.

Childhood adversity and psychosis in detained inpatients from medium to high secured units: Results from the Scottish census survey (2019)
Journal Article
Karatzias, T., Shevlin, M., Pitcairn, J., Thomson, L., Mahoney, A., & Hyland, P. (2019). Childhood adversity and psychosis in detained inpatients from medium to high secured units: Results from the Scottish census survey. Child Abuse and Neglect, 96, Arti

Background There is limited data available regarding the most common forms of psychiatric illness, the occurrence of childhood adversity, and the link between childhood adversity and criminal and psychiatric outcomes amongst forensic inpatients.... Read More about Childhood adversity and psychosis in detained inpatients from medium to high secured units: Results from the Scottish census survey.

Risk factors and comorbidity of ICD‐11 PTSD and complex PTSD: Findings from a trauma‐exposed population based sample of adults in the United Kingdom (2019)
Journal Article
Karatzias, T., Hyland, P., Bradley, A., Cloitre, M., Roberts, N. P., Bisson, J. I., & Shevlin, M. (2019). Risk factors and comorbidity of ICD‐11 PTSD and complex PTSD: Findings from a trauma‐exposed population based sample of adults in the United King

Background: Following the recently published 11th version of the WHO International Classification of Diseases (ICD-11), we sought to examine the risk factors and comorbidities associated with posttraumatic stress disorder (PTSD) and Complex PTSD (CPT... Read More about Risk factors and comorbidity of ICD‐11 PTSD and complex PTSD: Findings from a trauma‐exposed population based sample of adults in the United Kingdom.

Differentiating Symptom Profiles of ICD-11 PTSD, Complex PTSD and Borderline Personality Disorder: A Latent Class Analysis in a Multiply Traumatised Sample (2019)
Journal Article
Jowett, S., Karatzias, T., Shevlin, M., & Albert, I. (2020). Differentiating Symptom Profiles of ICD-11 PTSD, Complex PTSD and Borderline Personality Disorder: A Latent Class Analysis in a Multiply Traumatised Sample. Personality Disorders: Theory, Resear

Background: Complex PTSD (CPTSD) has been included as a diagnostic category in the ICD-11 consisting of six symptom clusters; the three PTSD criteria of Re-experiencing, Avoidance, and Hypervigilance, in addition to three Disturbances of Self-Organis... Read More about Differentiating Symptom Profiles of ICD-11 PTSD, Complex PTSD and Borderline Personality Disorder: A Latent Class Analysis in a Multiply Traumatised Sample.

The distribution of Psychosis, ICD-11 PTSD and Complex PTSD symptoms among a trauma-exposed UK general population sample (2019)
Journal Article
Frost, R., Louison Vang, M., Karatzias, T., Hyland, P., & Shevlin, M. (2019). The distribution of Psychosis, ICD-11 PTSD and Complex PTSD symptoms among a trauma-exposed UK general population sample. Psychosis, 11(3), 187-198. https://doi.org/10.1080/1752

Background: Co-occurrence of psychosis and posttraumatic stress disorder (PTSD) symptoms has been demonstrated, but the ICD-11 marks a significant divergence in the formulation of PTSD with a focus on the core symptoms and the addition of Complex PTS... Read More about The distribution of Psychosis, ICD-11 PTSD and Complex PTSD symptoms among a trauma-exposed UK general population sample.

Trauma‐informed care: A qualitative study exploring the views and experiences of professionals in specialist health services for adults with intellectual disabilities (2019)
Journal Article
Truesdale, M., Brown, M., Taggart, L., Bradley, A., Paterson, D., Sirisena, C., …Karatzias, T. (2019). Trauma‐informed care: A qualitative study exploring the views and experiences of professionals in specialist health services for adults with intelle

Background: Although, trauma and its sequelae is increasingly recognised as a major morbidity factor in people with intellectual disabilities, there has been a lack of inquiry into how health care professionals address trauma in adults with ID. Aims... Read More about Trauma‐informed care: A qualitative study exploring the views and experiences of professionals in specialist health services for adults with intellectual disabilities.

Disempowered midwives and traumatised women: exploring the parallel processes of care provider interaction that contribute to women developing Post Traumatic Stress Disorder (PTSD) post childbirth (2019)
Journal Article
Patterson, J., Hollins-Martin, C. J., & Karatzias, T. (2019). Disempowered midwives and traumatised women: exploring the parallel processes of care provider interaction that contribute to women developing Post Traumatic Stress Disorder (PTSD) post childbi

Background: Around 4% of women develop Post Traumatic Stress Disorder Post Childbirth (PTSD-PC). During childbirth a woman’s perception of her care provider’s interpersonal verbal and nonverbal relationship behaviours, termed ‘Quality of Provider Int... Read More about Disempowered midwives and traumatised women: exploring the parallel processes of care provider interaction that contribute to women developing Post Traumatic Stress Disorder (PTSD) post childbirth.

Translation and validation of the Chinese ICD-11 International Trauma Questionnaire (ITQ) for the Assessment of Posttraumatic Stress Disorder (PTSD) and Complex PTSD (CPTSD) (2019)
Journal Article
Ho, G. W. . K., Karatzias, T., Cloitre, M., Chan, A. C. Y., Bressington, D., Chien, W. T., …Shevlin, M. (2019). Translation and validation of the Chinese ICD-11 International Trauma Questionnaire (ITQ) for the Assessment of Posttraumatic Stress Disorder

Two stress related disorders have been proposed for inclusion in the revised ICD11: Posttraumatic Stress Disorder (PTSD) and Complex PTSD (CPTSD). The International Trauma Questionnaire (ITQ) is a bespoke measure of PTSD and CPTSD, and has been widel... Read More about Translation and validation of the Chinese ICD-11 International Trauma Questionnaire (ITQ) for the Assessment of Posttraumatic Stress Disorder (PTSD) and Complex PTSD (CPTSD).

Positive changes and appreciation of life among economic immigrants in Scotland. (2019)
Journal Article
Bak-Klimek, A., Karatzias, T., Elliott, L., Dickson, A., & MacLean, R. (2020). Positive changes and appreciation of life among economic immigrants in Scotland. Journal of International Migration and Integration, 21, Article 57-76. https://doi.org/10.1007/

Objectives: Existing qualitative studies focussed predominantly on exploring immigrants’ stress, distress and coping aimed at reducing stress. Little attention has been paid to immigrants’ psychological growth or positive life changes. In the presen... Read More about Positive changes and appreciation of life among economic immigrants in Scotland..

Psychological interventions for ICD-11 Complex PTSD symptoms: Systematic review and meta-analysis (2019)
Journal Article
Karatzias, T., Murphy, P., Cloitre, M., Bisson, J., Roberts, N., Shevlin, M., …Hutton, P. (2019). Psychological interventions for ICD-11 Complex PTSD symptoms: Systematic review and meta-analysis. Psychological Medicine, 49(11), 1761-1775. https://doi.o

Background: The 11th revision to the WHO International Classification of Diseases (ICD-11) identified Complex Posttraumatic Stress Disorder (CPTSD) as a new condition. There is a pressing need to identify effective CPTSD interventions. Methods: We co... Read More about Psychological interventions for ICD-11 Complex PTSD symptoms: Systematic review and meta-analysis.

A mixed‐methods, randomized controlled feasibility trial of Eye Movement Desensitization and Reprocessing (EMDR) plus Standard Care (SC) versus SC alone for DSM‐5 Posttraumatic Stress Disorder (PTSD) in adults with intellectual disabilities (2019)
Journal Article
Karatzias, T., Brown, M., Taggart, L., Truesdale, M., Sirisena, C., Walley, R., …Paterson, D. (2019). A mixed‐methods, randomized controlled feasibility trial of Eye Movement Desensitization and Reprocessing (EMDR) plus Standard Care (SC) versus SC al

Objective: To report the results of the first randomised feasibility trial of Eye Movement Desensitisation and Reprocessing (EMDR) plus Standard Care (SC) vs. SC alone for DSM-5 Posttraumatic Stress Disorder (PTSD) in adults with intellectual disabil... Read More about A mixed‐methods, randomized controlled feasibility trial of Eye Movement Desensitization and Reprocessing (EMDR) plus Standard Care (SC) versus SC alone for DSM‐5 Posttraumatic Stress Disorder (PTSD) in adults with intellectual disabilities.

A Cross‐Cultural Comparison of ICD‐11 Complex Posttraumatic Stress Disorder Symptom Networks in Austria, the United Kingdom, and Lithuania (2019)
Journal Article
Knefel, M., Lueger-Schuster, B., Bisson, J., Karatzias, T., Kazlauskas, E., & Roberts, N. P. (2020). A Cross‐Cultural Comparison of ICD‐11 Complex Posttraumatic Stress Disorder Symptom Networks in Austria, the United Kingdom, and Lithuania. Journal of

The 11th revision of the World Health Organization's International Classification of Diseases (ICD-11) may include a new disorder, Complex Posttraumatic Stress Disorder (CPTSD). The network approach to psychopathology enables investigation of the str... Read More about A Cross‐Cultural Comparison of ICD‐11 Complex Posttraumatic Stress Disorder Symptom Networks in Austria, the United Kingdom, and Lithuania.

The replicability of ICD-11 complex post-traumatic stress disorder symptom networks in adults (2019)
Journal Article
Knefel, M., Karatzias, T., Ben-Ezra, M., Cloitre, M., Lueger-Schuster, B., & Maercker, A. (2019). The replicability of ICD-11 complex post-traumatic stress disorder symptom networks in adults. British Journal of Psychiatry, 214(6), 361-368. https://doi.or

Background: The 11th revision of the World Health Organization's International Classification of Diseases (ICD-11) includes a new disorder, Complex Posttraumatic Stress Disorder (CPTSD). A network approach to CPTSD will enable investigation of the st... Read More about The replicability of ICD-11 complex post-traumatic stress disorder symptom networks in adults.