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Prevalence and Validity of ICD-11 Posttraumatic Stress Disorder (PTSD) and Complex PTSD: A Population-Based Survey of Hong Kong Adults (2024)
Journal Article
Ho, G. W., Chan, K. L., Karatzias, T., Hyland, P., Fung, H. W., & Shevlin, M. (2024). Prevalence and Validity of ICD-11 Posttraumatic Stress Disorder (PTSD) and Complex PTSD: A Population-Based Survey of Hong Kong Adults. Asian Journal of Psychiatry, 96,

The present study aimed to report the prevalence of ICD-11 posttraumatic stress disorder (PTSD) and complex PTSD (CPTSD) in the general adult Hong Kong population, and examine the validity of the Chinese International Trauma Questionnaire (ITQ). This... Read More about Prevalence and Validity of ICD-11 Posttraumatic Stress Disorder (PTSD) and Complex PTSD: A Population-Based Survey of Hong Kong Adults.

Childhood adversity and mental health admission patterns prior to young person suicide (CHASE): a case-control 36 year linked hospital data study, Scotland UK 1981-2017 (2024)
Journal Article
Dougall, N., Savinc, J., Maxwell, M., Karatzias, T., O’Connor, R. C., Williams, B., …Murray, J. (in press). Childhood adversity and mental health admission patterns prior to young person suicide (CHASE): a case-control 36 year linked hospital data stu

Background Childhood adversity (CA) is associated with increased later mental health (MH) problems and suicidal behaviour. Opportunities for earlier healthcare identification and intervention are needed. Aim To determine associations between hos... Read More about Childhood adversity and mental health admission patterns prior to young person suicide (CHASE): a case-control 36 year linked hospital data study, Scotland UK 1981-2017.

Physical, mental, and behavioral health after adverse and benevolent childhood experiences: a comparison of two adversity conceptualizations (2024)
Journal Article
Ho, G. W., Ling Chan, K., Ho Wong, K., Fong Leung, S., & Karatzias, T. (in press). Physical, mental, and behavioral health after adverse and benevolent childhood experiences: a comparison of two adversity conceptualizations. Psychological Trauma: Theory,

Objective: Adverse and benevolent childhood experiences (ACEs, BCEs) impact health across the lifespan. No known study has investigated these associations across different health domains using a representative adult sample. This study examined the as... Read More about Physical, mental, and behavioral health after adverse and benevolent childhood experiences: a comparison of two adversity conceptualizations.

Mental health in Ukraine in 2023 (2024)
Journal Article
Martsenkovskyi, D., Shevlin, M., Ben-Ezra, M., Bondjers, K., Fox, R., Karatzias, T., …Hyland, P. (2024). Mental health in Ukraine in 2023. European Psychiatry, 67(1), Article e27. https://doi.org/10.1192/j.eurpsy.2024.12

Background Very little is known about the mental health of the adult population of Ukraine following Russia’s full-scale invasion in February 2022. In this study, we estimated the prevalence of seven mental health disorders, the proportion of adults... Read More about Mental health in Ukraine in 2023.

Enhanced Skills Training in Affective and Interpersonal Regulation (ESTAIR) vs. Treatment as Usual (TAU) for ICD-11 Complex PTSD: A pilot randomised controlled trial (The RESTORE trial) (2024)
Journal Article
Karatzias, T., Shevlin, M., Cloitre, M., Busuttil, W., Graham, K., Hendrikx, L., …Murphy, D. (in press). Enhanced Skills Training in Affective and Interpersonal Regulation (ESTAIR) vs. Treatment as Usual (TAU) for ICD-11 Complex PTSD: A pilot randomised

Introduction Complex PTSD (CPTSD) is a relatively new condition in ICD-11. This pilot randomised controlled trial aimed to compare a four-module intervention developed to target all symptoms of ICD-11 CPTSD, namely Enhanced Skills in Affective and... Read More about Enhanced Skills Training in Affective and Interpersonal Regulation (ESTAIR) vs. Treatment as Usual (TAU) for ICD-11 Complex PTSD: A pilot randomised controlled trial (The RESTORE trial).

Prevalence and correlates of ICD-11 prolonged grief disorder among adults living in Ukraine during the war with Russia (2024)
Journal Article
Redican, E., Hyland, P., Shevlin, M., Martsenkovskyi, D., Karatzias, T., & Ben-Ezra, M. (2024). Prevalence and correlates of ICD-11 prolonged grief disorder among adults living in Ukraine during the war with Russia. Acta Psychiatrica Scandinavica, 149(5),

Background: Although high rates of bereavement are evident in war-affected populations, no study has investigated the prevalence and correlates of probable ICD-11 Prolonged Grief Disorder (PGD) under these circumstances. Methods: Participants we... Read More about Prevalence and correlates of ICD-11 prolonged grief disorder among adults living in Ukraine during the war with Russia.

Correlates of Posttraumatic Stress Disorder in the Aftermath of the February 2023 Earthquake in Turkey (2024)
Journal Article
Han Alpay, E., Redican, E., Hyland, P., Karatzias, T., & Shevlin, M. (in press). Correlates of Posttraumatic Stress Disorder in the Aftermath of the February 2023 Earthquake in Turkey. Journal of Loss and Trauma, https://doi.org/10.1080/15325024.2024.2314

On February 6, 2023, an earthquake registering 7.8 on the Richter scale struck southeast Turkey, and this was followed by a second earthquake of magnitude 7.5. The earthquake resulted in widespread loss, devastation, and destruction, and is anticipat... Read More about Correlates of Posttraumatic Stress Disorder in the Aftermath of the February 2023 Earthquake in Turkey.

ICD-11 Posttraumatic Stress Disorder (PTSD) and Complex PTSD (CPTSD) in mental health support-seeking former-serving Australian Defence Force Veterans (2024)
Journal Article
Bressington, D., Hyland, P., Steele, H., Byrne, M., Mitchell, D., Keane, C., …Karatzias, T. (in press). ICD-11 Posttraumatic Stress Disorder (PTSD) and Complex PTSD (CPTSD) in mental health support-seeking former-serving Australian Defence Force Veteran

Background ICD-11 complex posttraumatic stress disorder (CPTSD) is a more severe condition than PTSD, and recent studies indicate it is more prevalent among military samples. In this study, we tested the psychometric properties of the International... Read More about ICD-11 Posttraumatic Stress Disorder (PTSD) and Complex PTSD (CPTSD) in mental health support-seeking former-serving Australian Defence Force Veterans.

Cumulative risk exposure is associated with increased risk for PTSD but not depression or anxiety. Results from a UK clinical sample of children and adolescents (2024)
Journal Article
Turgoose, D., Wilkinson, S., Shevlin, M., & Karatzias, T. (in press). Cumulative risk exposure is associated with increased risk for PTSD but not depression or anxiety. Results from a UK clinical sample of children and adolescents. Developmental Child Wel

Background Childhood adversity can include traumatic experiences and exposure to other risk factors; consistently predicting poorer psychosocial outcomes in adulthood. Relatively little research has investigated the impact of cumulative risk exposur... Read More about Cumulative risk exposure is associated with increased risk for PTSD but not depression or anxiety. Results from a UK clinical sample of children and adolescents.