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.org/10.1017/S0033291719000436

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 alone for DSM‐5 Posttraumatic Stress Disorder (PTSD) in adults with intellectual disabilities. Journal of Applied Research in Intellectual Disabilities, 32(4), 806-818. https://doi.org/10.1111/jar.12570

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 Traumatic Stress, 33(1), 41-51. https://doi.org/10.1002/jts.22361

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.org/10.1192/bjp.2018.286

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.

A feasibility study of a cross-diagnostic, CBT-based psychological intervention for acute mental health inpatients: Results, challenges, and methodological implications (2018)
Journal Article
Paterson, C., Karatzias, T., Harper, S., Dougall, N., Dickson, A., & Hutton, P. (2019). A feasibility study of a cross-diagnostic, CBT-based psychological intervention for acute mental health inpatients: Results, challenges, and methodological implications. British Journal of Clinical Psychology, 58(2), 211-230. https://doi.org/10.1111/bjc.12209

Objectives Acute psychiatric inpatient wards are characterised by minimal provision of therapeutic activities and high readmission rates. Implementation of a comprehensive inpatient psychological intervention service has been recommended to overcome... Read More about A feasibility study of a cross-diagnostic, CBT-based psychological intervention for acute mental health inpatients: Results, challenges, and methodological implications.

Quality not quantity: loneliness subtypes, psychological trauma, and mental health in the US adult population (2018)
Journal Article
Power, J. M., Hyland, P., Shevlin, M., Cloitre, M., Karatzias, T., Vallières, F., …Mchugh Power, J. (2019). Quality not quantity: loneliness subtypes, psychological trauma, and mental health in the US adult population. Social Psychiatry and Psychiatric Epidemiology, 54(9), 1089-1099. https://doi.org/10.1007/s00127-018-1597-8

Purpose: Loneliness is a recognised public-health concern that is traditionally regarded as a unidimensional construct. Theories of loneliness predict the existence of subtypes of loneliness. In this study, latent class analysis (LCA) was used to tes... Read More about Quality not quantity: loneliness subtypes, psychological trauma, and mental health in the US adult population.

Derealisation and self-harm strategies are used to regulate disgust, fear and sadness in adult survivors of childhood sexual abuse (2018)
Journal Article
Bradley, A., Karatzias, T., & Coyle, E. (2019). Derealisation and self-harm strategies are used to regulate disgust, fear and sadness in adult survivors of childhood sexual abuse. Clinical Psychology and Psychotherapy, 26(1), 94-104. https://doi.org/10.1002/cpp.2333

Emotion regulation (ER) difficulties have been identified as an important target for clinical intervention in the treatment of posttraumatic stress disorder (PTSD) symptoms in survivors of childhood sexual abuse (CSA). However, there is limited resea... Read More about Derealisation and self-harm strategies are used to regulate disgust, fear and sadness in adult survivors of childhood sexual abuse.

A systematic review and meta-analysis of group treatments for adults with symptoms associated with complex post-traumatic stress disorder (2018)
Journal Article
Mahoney, A., Karatzias, T., & Hutton, P. (2018). A systematic review and meta-analysis of group treatments for adults with symptoms associated with complex post-traumatic stress disorder. Journal of Affective Disorders, https://doi.org/10.1016/j.jad.2018.09.059

Background: No previous meta-analyses have specifically investigated the effectiveness of psychological group therapy for symptoms associated with complex interpersonal trauma, including whether trauma memory processing (TMP) therapies are superior t... Read More about A systematic review and meta-analysis of group treatments for adults with symptoms associated with complex post-traumatic stress disorder.

The International Trauma Questionnaire: development of a self-report measure of ICD-11 PTSD and complex PTSD (2018)
Journal Article
Cloitre, M., Shevlin, M., Brewin, C. R., Bisson, J. I., Roberts, N. P., Maercker, A., …Hyland, P. (2018). The International Trauma Questionnaire: development of a self-report measure of ICD-11 PTSD and complex PTSD. Acta Psychiatrica Scandinavica, 138(6), 536-546. https://doi.org/10.1111/acps.12956

Objective: The purpose of this study was to finalize the development of the International Trauma Questionnaire (ITQ); a self-report diagnostic measure of Posttraumatic Stress Disorder (PTSD) and Complex PTSD (CPTSD), as defined in the 11th version of... Read More about The International Trauma Questionnaire: development of a self-report measure of ICD-11 PTSD and complex PTSD.

PTSD post-childbirth: a systematic review of women’s and midwives’ subjective experiences of care provider interaction (2018)
Journal Article
Patterson, J., Hollins Martin, C., & Karatzias, T. (2019). PTSD post-childbirth: a systematic review of women’s and midwives’ subjective experiences of care provider interaction. Journal of Reproductive and Infant Psychology, 37(1), 56-83. https://doi.org/10.1080/02646838.2018.1504285

Objective: To review primary research from within the literature regarding PTSD Post-Childbirth (PTSD-PC), that focussed on Quality of Provider Interaction (QPI) from either the perspective of women who have developed PTSD-PC, or midwives. Backgroun... Read More about PTSD post-childbirth: a systematic review of women’s and midwives’ subjective experiences of care provider interaction.

From child maltreatment to ICD-11 complex post-traumatic stress symptoms: The role of emotion regulation and re-victimisation (2018)
Journal Article
Knefel, M., Lueger-Schuster, B., Karatzias², T., Shevlin, M., & Hyland, P. (2019). From child maltreatment to ICD-11 complex post-traumatic stress symptoms: The role of emotion regulation and re-victimisation. Journal of Clinical Psychology, 75(3), 392-403. https://doi.org/10.1002/jclp.22655

Objective: Complex Posttraumatic Stress Disorder (CPTSD) will be introduced in ICD-11 and comprises symptoms of PTSD and disturbances in self-organisation (DSO). The association of trauma with PTSD and DSO is not yet fully understood. We investigated... Read More about From child maltreatment to ICD-11 complex post-traumatic stress symptoms: The role of emotion regulation and re-victimisation.

Multiple traumatisation and subsequent psychopathology in people with intellectual disabilities and DSM‐5 PTSD: a preliminary study (2018)
Journal Article
Mason‐Roberts, S., Bradley, A., Karatzias, T., Brown, M., Paterson, D., Walley, R., …Sirisena, C. (2018). Multiple traumatisation and subsequent psychopathology in people with intellectual disabilities and DSM‐5 PTSD: a preliminary study. Journal of Intellectual Disability Research, 62(8), 730-736. https://doi.org/10.1111/jir.12505

Background: Individuals with intellectual disability (ID) are at greater risk of exposure to traumatic life events compared to the non-ID population. Yet no study to date has examined the role of multiple traumatisation and subsequent psychopathology... Read More about Multiple traumatisation and subsequent psychopathology in people with intellectual disabilities and DSM‐5 PTSD: a preliminary study.

Posttraumatic Stress Disorder and Complex Posttraumatic Stress Disorder in DSM-5 and ICD-11: Clinical and Behavioral Correlates: Correlates of PTSD and CPTSD (2018)
Journal Article
Hyland, P., Shevlin, M., Fyvie, C., & Karatzias, T. (2018). Posttraumatic Stress Disorder and Complex Posttraumatic Stress Disorder in DSM-5 and ICD-11: Clinical and Behavioral Correlates: Correlates of PTSD and CPTSD. Journal of Traumatic Stress, 31(2), 174-180. https://doi.org/10.1002/jts.22272

The American Psychiatric Association and the World Health Organization provide distinct trauma-based diagnoses in the fifth edition of the Diagnostic and Statistical Manual (DSM-5), and the forthcoming 11th version of the International Classification... Read More about Posttraumatic Stress Disorder and Complex Posttraumatic Stress Disorder in DSM-5 and ICD-11: Clinical and Behavioral Correlates: Correlates of PTSD and CPTSD.

Posttraumatic stress disorder (PTSD) and complex PTSD (CPTSD) as per ICD-11 proposals: A population study in Israel (2018)
Journal Article
Ben-Ezra, M., Karatzias, T., Hyland, P., Brewin, C. R., Cloitre, M., Bisson, J. I., …Shevlin, M. (2018). Posttraumatic stress disorder (PTSD) and complex PTSD (CPTSD) as per ICD-11 proposals: A population study in Israel. Depression and Anxiety, 35(3), 264-274. https://doi.org/10.1002/da.22723

Background: The current study sought to advance the existing literature by providing the first assessment of the factorial and discriminant validity of the ICD-11 proposals for PTSD and CPTSD in a nation-wide level. Methods: A nationally representat... Read More about Posttraumatic stress disorder (PTSD) and complex PTSD (CPTSD) as per ICD-11 proposals: A population study in Israel.

The role of negative cognitions, emotion regulation strategies, and attachment style in complex post-traumatic stress disorder: Implications for new and existing therapies (2018)
Journal Article
Brewin, C. R., Shevlin, M., Kitchiner, N. J., Bisson, J. I., Roberts, N. P., Karatzias, T., …Roberts, N. (2018). The role of negative cognitions, emotion regulation strategies, and attachment style in complex post-traumatic stress disorder: Implications for new and existing therapies. British Journal of Clinical Psychology, https://doi.org/10.1111/bjc.12172

Objective We set out to investigate the association between negative trauma-related cognitions, emotional regulation strategies, and attachment style and Complex Posttraumatic Stress Disorder (CPTSD). As the evidence regarding the treatment of CPTSD... Read More about The role of negative cognitions, emotion regulation strategies, and attachment style in complex post-traumatic stress disorder: Implications for new and existing therapies.

Validation of post-traumatic stress disorder (PTSD) and complex PTSD using the International Trauma Questionnaire (2017)
Journal Article
Hyland, P., Shevlin, M., Brewin, C. R., Cloitre, M., Downes, A. J., Jumbe, S., …Roberts, N. P. (2017). Validation of post-traumatic stress disorder (PTSD) and complex PTSD using the International Trauma Questionnaire. Acta Psychiatrica Scandinavica, 136(3), 313-322. https://doi.org/10.1111/acps.12771

Objective: The 11th version of the International Classification of Diseases (ICD-11) has proposed two related trauma diagnoses: Posttraumatic Stress Disorder (PTSD) and Complex PTSD (CPTSD). Using a newly developed, disorder-specific measure of PTSD... Read More about Validation of post-traumatic stress disorder (PTSD) and complex PTSD using the International Trauma Questionnaire.

An international multi-site, randomized controlled trial of a mindfulness-based psychoeducation group programme for people with schizophrenia (2017)
Journal Article
Chien, W. T., Bressington, D., Yip, A., & Karatzias, T. (2017). An international multi-site, randomized controlled trial of a mindfulness-based psychoeducation group programme for people with schizophrenia. Psychological Medicine, 47(12), 2081-2096. https://doi.org/10.1017/s0033291717000526

Background We aimed to test a mindfulness-based psycho-education group (MBPEG), versus conventional psycho-education group (CPEG) versus treatment-as-usual (TAU), in patients with schizophrenia-spectrum disorders over a 24-month follow-up. Methods... Read More about An international multi-site, randomized controlled trial of a mindfulness-based psychoeducation group programme for people with schizophrenia.

Guideline for the treatment and planning of services for complex post-traumatic stress disorder in adults (2017)
Report
McFetridge, M., Hauenstein Swan, A., Heke, S., Karatzias, T., Greenberg, N., Kitchiner, N., & Morley, R. (2017). Guideline for the treatment and planning of services for complex post-traumatic stress disorder in adults. Scotland: UK Psychological Trauma Society (UKPTS)

No abstract available.

Examining the Disconnect Between Psychometric Models and Clinical Reality of Posttraumatic Stress Disorder (2017)
Journal Article
Shevlin, M., Hyland, P., Karatzias, T., Bisson, J. I., & Roberts, N. P. (2017). Examining the Disconnect Between Psychometric Models and Clinical Reality of Posttraumatic Stress Disorder. Journal of Anxiety Disorders, 47, 54-59

There have been many factor analytic studies aimed at testing alternative latent structures of DSM-IV and DSM-5 posttraumatic stress disorder (PTSD) symptoms. The primary rationale for such studies is that determining the ‘best’ factor analytic model... Read More about Examining the Disconnect Between Psychometric Models and Clinical Reality of Posttraumatic Stress Disorder.

Alternative models of disorders of traumatic stress based on the new ICD-11 proposals (2017)
Journal Article
Shevlin, M., Hyland, P., Karatzias, T., Fyvie, C., Roberts, N., Bisson, J. I., …Cloitre, M. (2017). Alternative models of disorders of traumatic stress based on the new ICD-11 proposals. Acta Psychiatrica Scandinavica, 135(5), 419-428. https://doi.org/10.1111/acps.12695

Objective Although there is emerging evidence for the factorial validity of the distinction between Posttraumatic Stress Disorder (PTSD) and Complex PTSD (CPTSD) proposed in ICD-11, such evidence has been predominantly based on using selected items f... Read More about Alternative models of disorders of traumatic stress based on the new ICD-11 proposals.