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All Outputs (241)

A longitudinal assessment of depression and anxiety in the Republic of Ireland before and during the COVID-19 pandemic (2021)
Journal Article
Hyland, P., Shevlin, M., Murphy, J., McBride, O., Fox, R., Bondjers, K., …Vallières, F. (2021). A longitudinal assessment of depression and anxiety in the Republic of Ireland before and during the COVID-19 pandemic. Psychiatry Research, 300, Article 11

Few studies have examined changes in mental health before and after the outbreak of COVID-19. We examined changes in the prevalence of major depression and generalized anxiety disorder (GAD) between February 2019 and March-April 2020; if there were c... Read More about A longitudinal assessment of depression and anxiety in the Republic of Ireland before and during the COVID-19 pandemic.

PTSD and complex PTSD in adolescence: discriminating factors in a population-based cross-sectional study (2021)
Journal Article
Daniunaite, I., Cloitre, M., Karatzias, T., Shevlin, M., Thoresen, S., Zelviene, P., & Kazlauskas, E. (2021). PTSD and complex PTSD in adolescence: discriminating factors in a population-based cross-sectional study. European Journal of Psychotraumatology,

Background: Chronic and repeated trauma are well-established risk factors for complex posttraumatic stress disorder (CPTSD) in adult samples. Less is known about how trauma history and other factors contribute to the development of CPTSD in adolescen... Read More about PTSD and complex PTSD in adolescence: discriminating factors in a population-based cross-sectional study.

A Systematic Literature Review of Factor Analytic and Mixture Models of ICD-11 PTSD and CPTSD using the International Trauma Questionnaire (2021)
Journal Article
Redican, E., Nolan, E., Hyland, P., Cloitre, M., McBride, O., Karatzias, T., Murphy, J., & Shevlin, M. (2021). A Systematic Literature Review of Factor Analytic and Mixture Models of ICD-11 PTSD and CPTSD using the International Trauma Questionnaire. Jour

The 11th version of the International Classification of Diseases (ICD-11; WHO, 2018) describes two distinct trauma related disorders, Posttraumatic Stress Disorder (PTSD) and Complex PTSD (CPTSD). This review aims to summarise and synthesize evidence... Read More about A Systematic Literature Review of Factor Analytic and Mixture Models of ICD-11 PTSD and CPTSD using the International Trauma Questionnaire.

ICD-11 Posttraumatic Stress Disorder (PTSD) and Complex PTSD (CPTSD) in Treatment Seeking Veterans: Risk factors and comorbidity (2021)
Journal Article
Murphy, D., Karatzias, T., Busuttil, W., Greenberg, N., & Shevlin, M. (2021). ICD-11 Posttraumatic Stress Disorder (PTSD) and Complex PTSD (CPTSD) in Treatment Seeking Veterans: Risk factors and comorbidity. Social Psychiatry and Psychiatric Epidemiology,

Purpose: Emerging evidence suggests that ICD-11 CPTSD is a more common condition than PTSD in treatment seeking samples although no study has explored risk factors and comorbidities of PTSD and CPTSD in veteran populations. In this study risk factors... Read More about ICD-11 Posttraumatic Stress Disorder (PTSD) and Complex PTSD (CPTSD) in Treatment Seeking Veterans: Risk factors and comorbidity.

ICD-11 Complex Post Traumatic Stress Disorder (CPTSD) in parents with perinatal bereavement: Implications for treatment and care (2021)
Journal Article
Hollins Martin, C. J., Patterson, J., Paterson, C., Welsh, N., Dougall, N., Karatzias, T., & Williams, B. (2021). ICD-11 Complex Post Traumatic Stress Disorder (CPTSD) in parents with perinatal bereavement: Implications for treatment and care. Midwifery,

The 11th revision of the WHO International Classification of Diseases (ICD-11) has identified Complex PTSD (CPTSD) as a new condition. Aim: To explore whether the new diagnosis of CPTSD (ICD11) is relevant to women who have experienced perinatal be... Read More about ICD-11 Complex Post Traumatic Stress Disorder (CPTSD) in parents with perinatal bereavement: Implications for treatment and care.

Pandemic buying: Testing a psychological model of over-purchasing and panic buying using data from the United Kingdom and the Republic of Ireland during the early phase of the COVID-19 pandemic (2021)
Journal Article
Bentall, R. P., Lloyd, A., Bennett, K., McKay, R., Mason, L., Murphy, J., …Shevlin, M. (2021). Pandemic buying: Testing a psychological model of over-purchasing and panic buying using data from the United Kingdom and the Republic of Ireland during the e

The over-purchasing and hoarding of necessities is a common response to crises, especially in developed economies where there is normally an expectation of plentiful supply. This behaviour was observed internationally during the early stages of the C... Read More about Pandemic buying: Testing a psychological model of over-purchasing and panic buying using data from the United Kingdom and the Republic of Ireland during the early phase of the COVID-19 pandemic.

Comparing the network structure of ICD-11 PTSD and complex PTSD in three African countries   (2021)
Journal Article
Levin, Y., Hyland, P., Karatzias, T., Shevlin, M., & Ben-Ezra, M. (2021). Comparing the network structure of ICD-11 PTSD and complex PTSD in three African countries  . Journal of Psychiatric Research, 136, 80-86. https://doi.org/10.1016/j.jpsychires.202

Background: Symptom network analysis has become an essential tool for researchers and clinicians investigating the structure of mental disorders. Two methods have been used; one relies on partial correlations, and the second relies on zero order corr... Read More about Comparing the network structure of ICD-11 PTSD and complex PTSD in three African countries  .

Moral Injury and ICD-11 Complex PTSD (CPTSD) Symptoms among Treatment-Seeking Veterans in the United Kingdom (2021)
Journal Article
Currier, J. M., Foster, J. D., Karatzias, T., & Murphy, D. (2021). Moral Injury and ICD-11 Complex PTSD (CPTSD) Symptoms among Treatment-Seeking Veterans in the United Kingdom. Psychological Trauma: Theory, Research, Practice, and Policy, 13(4), 417-421.

Military veterans often encounter events with chronic or repeated traumas of an interpersonal nature that might lead to emotional, relational, and spiritual suffering. Research is needed to assess whether and/or how emerging conceptions of moral inju... Read More about Moral Injury and ICD-11 Complex PTSD (CPTSD) Symptoms among Treatment-Seeking Veterans in the United Kingdom.

Childhood trauma, attachment orientation and Complex PTSD (CPTSD) symptoms in a clinical sample: Implications for treatment (2021)
Journal Article
Karatzias, T., Shevlin, M., Ford, J. D., Fyvie, C., Grandison, G., Hyland, P., & Cloitre, M. (2022). Childhood trauma, attachment orientation and Complex PTSD (CPTSD) symptoms in a clinical sample: Implications for treatment. Development and Psychopatholo

Although there has been significant work on the association between Posttraumatic Stress Disorder (PTSD) and attachment orientation, this is less the case for Complex PTSD (CPTSD). The primary aim of this paper was to assess the strength of the assoc... Read More about Childhood trauma, attachment orientation and Complex PTSD (CPTSD) symptoms in a clinical sample: Implications for treatment.

PTSD and complex PTSD in sentenced male prisoners in the UK: prevalence, trauma antecedents, and psychiatric comorbidities (2021)
Journal Article
Facer-Irwin, E., Karatzias, T., Bird, A., Blackwood, N., & MacManus, D. (2022). PTSD and complex PTSD in sentenced male prisoners in the UK: prevalence, trauma antecedents, and psychiatric comorbidities. Psychological Medicine, 52(13), 2794-2804. https://

Background Posttraumatic stress disorder (PTSD) is highly prevalent within prison settings, yet is often unidentified and undertreated. Complex PTSD (CPTSD) has been recently formally recognised in the International Classification of Diseases 11th r... Read More about PTSD and complex PTSD in sentenced male prisoners in the UK: prevalence, trauma antecedents, and psychiatric comorbidities.

Complex PTSD symptoms mediate the association between childhood trauma and physical health problems (2021)
Journal Article
Ho, G. W., Karatzias, T., Vallières, F., Bondjers, K., Shevlin, M., Cloitre, M., …Hyland, P. (2021). Complex PTSD symptoms mediate the association between childhood trauma and physical health problems. Journal of Psychosomatic Research, 142, Article 11

The ICD-11 reconceptualized Posttraumatic Stress Disorder (PTSD) as a narrowly defined fear-based disorder, and introduced Complex PTSD (CPTSD) as a new diagnosis comprised of PTSD symptoms and symptoms of ‘Disturbances in Self-Organization’ (DSO) th... Read More about Complex PTSD symptoms mediate the association between childhood trauma and physical health problems.

The Authoritarian Dynamic During the COVID-19 Pandemic: Effects on Nationalism and Anti-Immigrant Sentiment (2021)
Journal Article
Hartman, T. K., Stocks, T. V., Mckay, R., Gibson Miller, J., Levita, L., Martinez, A. P., …Bentall, R. P. (2021). The Authoritarian Dynamic During the COVID-19 Pandemic: Effects on Nationalism and Anti-Immigrant Sentiment. Social Psychological and Perso

Research has demonstrated that situational factors such as perceived threats to the social order activate latent authoritarianism. The deadly COVID-19 pandemic presents a rare opportunity to test whether existential threat stemming from an indiscrimi... Read More about The Authoritarian Dynamic During the COVID-19 Pandemic: Effects on Nationalism and Anti-Immigrant Sentiment.

Posttraumatic Stress Disorder and Persistent Somatic Symptoms During the COVID-19 Epidemic: The Role of Sense of Threat (2020)
Journal Article
Jowett, S., Shevlin, M., Hyland, P., & Karatzias, T. (2021). Posttraumatic Stress Disorder and Persistent Somatic Symptoms During the COVID-19 Epidemic: The Role of Sense of Threat. Psychosomatic Medicine, 83(4), 338-344. https://doi.org/10.1097/PSY.00000

Objective Persistent somatic symptoms, such as pain and fatigue, have been referred to as somatisation. Somatisation is commonly associated with histories of trauma and PTSD. Although previous research has demonstrated that PTSD can predict somatic... Read More about Posttraumatic Stress Disorder and Persistent Somatic Symptoms During the COVID-19 Epidemic: The Role of Sense of Threat.

Sexual Violence and Its Associated Psychosocial Effects in Ireland (2020)
Journal Article
Valliéres, F., Gilmore, B., Nolan, A., Maguire, P., Bondjers, K., McBride, O., Murphy, J., Shevlin, M., Karatzias, T., & Hyland, P. (2022). Sexual Violence and Its Associated Psychosocial Effects in Ireland. Journal of Interpersonal Violence, 37(11-12),

Current data on the prevalence and psychosocial correlates of sexual violence in the Republic of Ireland is lacking, with the most recent sexual abuse and violence survey dating back to 2001. The current study sought to identify what proportion of Ir... Read More about Sexual Violence and Its Associated Psychosocial Effects in Ireland.

A randomized controlled trial of a caregiver-facilitated problem-solving-based self-learning program for family carers of people with early psychosis (2020)
Journal Article
Tong Chien, W., Bressington, D., Lubman, D. I., & Karatzias, T. (2020). A randomized controlled trial of a caregiver-facilitated problem-solving-based self-learning program for family carers of people with early psychosis. International Journal of Environ

Facilitated self-help and problem-solving strategies can empower and support family carers to cope with caregiving for people with severe mental illness. This single-blind multi-site randomized controlled trial examined the effects of a 5-month famil... Read More about A randomized controlled trial of a caregiver-facilitated problem-solving-based self-learning program for family carers of people with early psychosis.

The Need for Research on PTSD in Children and Adolescents: A commentary on Elliot et al., 2020 (2020)
Journal Article
Cloitre, M., Brewin, C. R., Kazlauskas, E., Lueger-Schuster, B., Karatzias, T., Hyland, P., & Shevlin, M. (2021). The Need for Research on PTSD in Children and Adolescents: A commentary on Elliot et al., 2020. Journal of Child Psychology and Psychiatry, 6

The recent release of the 11th version of The International Classification of Diseases (ICD‐11: WHO, 2018) marked a significant departure from the previous similarities between it and the Diagnostic and Statistical Manual of Mental Disorders (DSM‐5;... Read More about The Need for Research on PTSD in Children and Adolescents: A commentary on Elliot et al., 2020.

Monitoring the psychological, social, and economic impact of the COVID-19 pandemic in the population: Context, design and conduct of the longitudinal COVID-19 Psychological Research Consortium (C19PRC) Study (2020)
Journal Article
McBride, O., Murphy, J., Shevlin, M., Gibson-Miller, J., Hartman, T. K., Hyland, P., Levita, L., Mason, L., Martinez, A. P., Mckay, R., Stocks, T. V., Bennett, K. M., Vallières, F., Karatzias, T., Valiente, C., Vazquez, C., & Bentall, R. P. (2021). Monit

Objectives: The C19PRC Study aims to assess the impact of the COVID-19 pandemic in the adult population of the UK, Republic of Ireland, and Spain. This paper describes the conduct of the first two waves of the UK survey (the ‘parent’ strand of the Co... Read More about Monitoring the psychological, social, and economic impact of the COVID-19 pandemic in the population: Context, design and conduct of the longitudinal COVID-19 Psychological Research Consortium (C19PRC) Study.

Anxiety, Depression, Traumatic Stress, and COVID-19 Related Anxiety in the UK General Population During the COVID-19 Pandemic (2020)
Journal Article
Shevlin, M., McBride, O., Murphy, J., Gibson Miller, J., Hartman, T. K., Levita, L., …Bentall, R. P. (2020). Anxiety, Depression, Traumatic Stress, and COVID-19 Related Anxiety in the UK General Population During the COVID-19 Pandemic. BJPsych Open, 6(6

Background The COVID-19 pandemic has created an unprecedented global crisis necessitating drastic changes to living conditions, social-life, personal freedom and economic activity. No study has yet examined the presence of psychiatric symptoms in th... Read More about Anxiety, Depression, Traumatic Stress, and COVID-19 Related Anxiety in the UK General Population During the COVID-19 Pandemic.

Is Posttraumatic Stress Disorder Meaningful in the Context of the COVID-19 Pandemic? A Response to Van Overmeire's Commentary on Karatzias et al. (2020) (2020)
Journal Article
Shevlin, M., Hyland, P., & Karatzias, T. (2020). Is Posttraumatic Stress Disorder Meaningful in the Context of the COVID-19 Pandemic? A Response to Van Overmeire's Commentary on Karatzias et al. (2020). Journal of Traumatic Stress, 33(5), 866-868. https:/

In a recently published study in this journal that used a population‐based sample in the Republic of Ireland (Karatzias et al., 2020), we concluded that 17.7% of the sample met the diagnostic requirements for COVID‐19–related posttraumatic stress dis... Read More about Is Posttraumatic Stress Disorder Meaningful in the Context of the COVID-19 Pandemic? A Response to Van Overmeire's Commentary on Karatzias et al. (2020).