Complex Posttraumatic Stress Disorder Class Research Articles

Complex PTSD in asylum-seekers living in a humanitarian setting in Africa: A latent class analysis.

Participants were 126 asylum-seekers hosted in a large, isolated reception camp in the desert surroundings of Agadez (humanitarian site) or in a number of small urban hosting facilities (cases de passages) who completed measures of trauma exposure and PTSD/CPTSD symptoms. Latent class analysis (LCA) was used to identify symptom profiles, and predictors of class membership were identified via multinomial logistic regression. More asylum seekers met the criteria for CPTSD (74.6%) than PTSD (19.8%) and no gender differences were observed. LCA results identified two distinct groups: (a) a CPTSD class (69.0%); and (b) a PTSD class (31.0%). Membership in the CPTSD class was significantly predicted by the early age of the first traumatic event, levels of functional impairment and reception conditions. Specifically, those in the CPTSD class were more likely to live in the humanitarian site compared with those in the PTSD class. This study supported the validity of the ICD-11 construct of CPTSD in an asylum-seeker sample living in a low-income country. Moreover, the findings suggest that not only premigration factors (i.e., the early age of the first trauma) but also postmigration stressors (i.e., precarious reception conditions in large, isolated facilities) are important predictors of CPTSD symptoms with important implications regarding reception policies and the prevention of trauma-related mental disorders in asylum seekers and refugees. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

Correction to Barbieri et al. (2022).

This study investigated ICD-11 posttraumatic stress disorder (PTSD) and complex PTSD (CPTSD) symptom profiles and their premigration, postmigration, and demographic predictors in a treatment-seeking sample of asylum-seekers in Agadez (Niger). Participants were 126 asylum-seekers hosted in a large, isolated reception camp in the desert surroundings of Agadez (humanitarian site) or in a number of small urban hosting facilities (cases de passages) who completed measures of trauma exposure and PTSD/CPTSD symptoms. Latent class analysis (LCA) was used to identify symptom profiles, and predictors of class membership were identified via multinomial logistic regression. More asylum seekers met the criteria for CPTSD (74.6%) than PTSD (19.8%) and no gender differences were observed. LCA results identified two distinct groups: (a) a CPTSD class (69.0%); and (b) a PTSD class (31.0%). Membership in the CPTSD class was significantly predicted by the early age of the first traumatic event, levels of functional impairment and reception conditions. Specifically, those in the CPTSD class were more likely to live in the humanitarian site compared with those in the PTSD class. This study supported the validity of the ICD-11 construct of CPTSD in an asylum-seeker sample living in a low-income country. Moreover, the findings suggest that not only premigration factors (i.e., the early age of the first trauma) but also postmigration stressors (i.e., precarious reception conditions in large, isolated facilities) are important predictors of CPTSD symptoms with important implications regarding reception policies and the prevention of trauma-related mental disorders in asylum seekers and refugees. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

The validity of ICD-11 PTSD and complex PTSD in North Korean defectors using the International Trauma Questionnaire

ABSTRACT Background: The International Trauma Questionnaire (ITQ) is a self-report assessment focused on the core features of Post-Traumatic Stress Disorder (PTSD) and complex Post-Traumatic Stress Disorder (CPTSD). It is consistent with the organizing principles of the 11th revision to the WHO's International Classification of Diseases (ICD-11). Since the 1990s, the number of North Korean defectors (NKD) entering South Korea to escape human rights violations has been increasing rapidly, with 33,815 NKD settled by 2021. The South Korean government faces an important challenge in supporting NKD to successfully adapt and settle in South Korean society. NKD experience various traumatic events during the process of defecting and repatriation. Therefore, it is essential to understand the psychological disorders of NKD, especially PTSD and CPTSD. Objective: This study aimed to test the validity of the ITQ assessment and explore the differences in symptoms and quality of life between PTSD and CPTSD. Method: The study sample comprised 503 trauma-exposed NKD. Confirmatory factor analysis (CFA) and latent class analysis (LCA) were used to evaluate the validity of ITQ. One-way analysis of variances and post-hoc analyses revealed the difference in the Depression and Somatic Symptoms Scale (DSSS) and WHOQOL-BREF results among PTSD and CPTSD symptom LCA classes. Results: The CFA and LCA results supported the ICD-11 conceptualization of PTSD and CPTSD in NKD. The CFA results confirmed that both the first- and second-order models were statistically fit, but for community-dwelling NKD the first-order model had better model fit than the second-order model. The LCA findings revealed a four-class model with ‘PTSD’, ‘CPTSD’, ‘DSO’, and ‘low symptom’ classes. Compared to the PTSD class, CPTSD class had higher levels of depression and somatic symptoms and a lower quality of life. Conclusion: This study provided evidence that ITQ is a valid tool to assess PTSD or CPTSD in community-dwelling NKD.

Prevalence and predictors of ICD-11 posttraumatic stress disorder and complex PTSD in young people.

ObjectiveThe prevalence, construct validity, risk factors and psychopathological correlates associated with ICD‐11 posttraumatic stress disorder (PTSD) and complex PTSD (CPTSD) as measured by the International Trauma Questionnaire for Children and Adolescents (ITQ‐CA) were assessed in a sample of young people from Northern Ireland.MethodParticipants were trauma‐exposed 11–19‐year‐olds (N = 507) who participated in the Northern Ireland Youth Wellbeing Prevalence Survey (YWS‐NI, 2020). Factor mixture modelling (FMM) was used to test the latent structure of the ITQ‐CA. Risk‐factors and psychopathological correlates associated with latent class membership, and ICD‐11diagnostic status, were also investigated.ResultsMore participants met the ITQ‐CA criteria for CPTSD (3.4%, n = 44) than PTSD (1.5%, n = 19). A second‐order FMM comprising a ‘partial‐PTSD class’, a ‘CPTSD class’, a ‘DSO class’ and a ‘low symptom endorsement class’ was the best‐fitting model. Younger age and cumulative trauma were risk factors for all trauma classes. Female gender and two or more violent traumas were significant predictors of the ‘PTSD’ and ‘CPTSD’ classes, while single sexual trauma was a significant predictor of the ‘DSO’ and ‘CPTSD’ classes. Two or more sexual traumas was a unique predictor of ‘CPTSD class’, while two or more vicarious traumas was a unique predictor of ‘DSO class’. The ‘CPTSD’ class displayed the most notable comorbidity.ConclusionsFindings indicate that CPTSD may be more prevalent than PTSD in children and young people. Support for the ICD‐11 conceptualisation of CPTSD as representing a unique diagnostic construct was supported using FMM, with findings indicating trauma symptom class‐specific risk profiles.

Exploring complex-PTSD comorbidity in trauma-exposed Northern Ireland veterans

ABSTRACT Background Complex posttraumatic stress disorder (CPTSD) describes the results of complex, prolonged, and/or inescapable trauma, and is typified by avoidance, re-experiencing, sense of threat, affect dysregulation, negative self-concept, and interpersonal disturbances. Additionally, CPTSD is highly comorbid with other common psychopathologies. Objectives A study was conducted in a trauma-exposed UK Armed Forces Veteran population resident in Northern Ireland (N = 638, NI) to determine the prevalence of CPTSD and comorbid associations. Methods Data from the Northern Ireland Veterans Health and Wellbeing Study (NIVHWS), including self-report data describing traumatic stress, depression, anxiety, and suicidality, were used in a latent class analysis to identify distinct profiles of symptomology in the sample, and in a multinomial logistic regression to identify comorbidities associated with class membership. Results Three distinct classes emerged: a low endorsement ‘baseline’ class (36%), a ‘Moderate Symptomatic’ class (27%), and a high endorsement ‘Probable CPTSD’ class (37%). Both the Moderate Symptomatic and CPTSD classes were predicted by cumulative trauma exposure. Depression was highly comorbid (OR = 23.06 in CPTSD), as was anxiety (OR = 22.05 in CPTSD) and suicidal ideation (OR = 4.32 in CPTSD), with suicidal attempt associated with the CPTSD class (OR = 2.51). Conclusions Cases of probable CPTSD were more prevalent than cases of probable posttraumatic stress disorder (PTSD) without Difficulties in Self-Organisation (DSO) symptoms in a UK Armed Forces veteran sample, were associated with repeated/cumulative trauma, and were highly comorbid across a range of psychopathologies. Findings validate previous literature on CPTSD and indicate considerable distress and thus need for support in UK Armed Forces veterans resident in NI. HIGHLIGHTS CPTSD was more prevalent than PTSD in a UK Armed Forces veteran sample. CPTSD was associated with repeated/cumulative trauma, and was highly comorbid across a range of psychopathologies. These findings validate the previous literature on CPTSD

Complex PTSD in Chinese Adolescents Exposed to Childhood Trauma: A Latent Profile Analysis.

Although numerous studies have supported the idea that complex posttraumatic stress disorder (CPTSD) is a distinct disorder from posttraumatic stress disorder (PTSD) and demonstrated that childhood interpersonal trauma is an important risk factor for CPTSD, few studies have examined the validity of CPTSD in adolescents, especially in non-Western contexts. Moreover, the question of which form of child maltreatment plays the most important role in predicting CPTSD, and how CPTSD is associated with psychological health, physical health, and social function among adolescents, is not clear. The present study used a Chinese high school student sample with childhood trauma experiences (N = 395) to address these questions. Latent profile analysis indicated that there were four subgroups in our sample: Low symptoms (54.43%), Disturbance of self-organization (DSO, 18.99%), PTSD (15.95%), and CPTSD (10.63%). Further analysis revealed that emotional abuse was an important risk factor for CPTSD. In addition, the CPTSD class showed the highest levels of depression, anxiety, and stress, as well as the lowest levels of life satisfaction and physical health. This study revealed that CPTSD is a distinct disorder from PTSD in Chinese adolescents exposed to childhood trauma. It provides evidence that emotional abuse might be an important risk factor for CPTSD, and demonstrates that CPTSD is accompanied by serious psychological and physical consequences in adolescents. We suggest that parents and educators should focus more on adolescents' emotional needs, avoid using negative ways such as verbal violence to express love, and pay more attention to adolescents' DSO symptoms in parenting, teaching practices and clinical interventions.

The latent structure of ICD-11 posttraumatic stress disorder (PTSD) and complex PTSD in a general population sample from USA: A factor mixture modelling approach

The validity of ICD-11 Posttraumatic Stress Disorder (PTSD) and Complex PTSD (CPTSD), as measured by the International Trauma Questionnaire (ITQ; Cloitre et al., 2018) has been supported in many factor analytic and mixture modelling studies. There is, however, a paucity of research investigating the latent structure of the ITQ using factor mixture modelling (FMM). FMM was applied to data collected from a nationally representative sample of U.S. adults (N = 1834). FMM results demonstrated strong support for a two-factor second-order model with four qualitatively distinct latent classes: a ‘PTSD class’, a ‘CPTSD class’, a ‘DSO’ (Disturbances in Self-Organisation) class and a ‘low symptoms class’. Sexual abuse increased likelihood of membership to the ‘CPTSD’ (OR = 3.22) and physical abuse decreased likelihood of membership to the ‘PTSD’ (OR=0.51). Trauma exposure in adulthood predicted ‘PTSD’ and ‘CPTSD’ class membership. The ‘CPTSD class’ was characterised by higher levels of psychopathological co-morbidities and poorer psychological wellbeing compared to all other classes. Results provide additional support for the validity of PTSD and CPTSD as measured by the ITQ.

PTSD and complex PTSD in treatment-seeking Danish soldiers: a replication of Folke et al. (2019) using the International Trauma Questionnaire

ABSTRACT Background: While empirical support for the ICD-11 distinction between posttraumatic stress disorder (PTSD) and complex PTSD (CPTSD) is growing, empirical research into the ICD-11 model of CPTSD in military populations is scarce and inconsistent. Objective: To replicate a study from our own group identifying distinct classes based on CPTSD symptoms using the International Trauma Questionnaire (ITQ) and to identify predictors and functional outcomes associated with a potential distinction between PTSD and CPTSD. Method: Formerly deployed treatment-seeking Danish soldiers (N = 294) completed the ITQ and self-report measures of traumatic life events prior to treatment. Latent profile analysis (LPA) was used to extract classes based on CPTSD symptoms. Results: LPA revealed four classes; (1) high CPTSD symptoms (‘CPTSD’, 28.7%); (2) high PTSD symptoms and lower DSO symptoms (‘PTSD’, 23.5%); (3) high DSO symptoms (‘DSO’, 17.3%); and (4) low symptoms (‘Low Symptoms’, 30.5%). In comparison to the PTSD-class, CPTSD-class membership was not predicted by traumatic events in adult life and in childhood. The CPTSD class was more often single/divorced/widowed compared to the PTSD class. Moreover, the CPTSD class more often used psychotropic medicine compared to the DSO-class and Low Symptoms-class. Conclusion: Using the ITQ, this study yields empirical support for the ICD-11 model of CPTSD within a clinical sample of veterans. The results replicate findings from our previous study that also identified distinct profiles of ICD-11 PTSD and CPTSD.

Validation of posttraumatic stress disorder (PTSD) and complex PTSD in Chinese children as per the ICD-11 proposals using the International trauma questionnaire

ABSTRACT Background: Given that the validity of applying complex posttraumatic stress disorder (CPTSD) in nonclinical children remains unclear. Objectives: The current study aimed to explore the factor structure, discriminant validity, and risk factors of ICD-11 posttraumatic stress disorder (PTSD) and CPTSD using the International Trauma Questionnaire. Methods: A total of 3478 trauma-exposed Chinese children aged 9–12 years were included in this study. All participants were assessed for PTSD and CPTSD using the International Trauma Questionnaire (ITQ). Confirmatory factor analysis (CFA) was conducted to explore the factor structure of CPTSD in a sample of Chinese children. Latent class analysis (LCA) was employed to evaluate the discriminant validity of CPTSD symptoms. Multinomial logistic regression analyses determined associations between the different classes and traumatic events. Results: The CFA results showed that the first-order six-factor model was identified as the best-fitting model in Chinese children aged 9–12 years. Four different classes, CPTSD symptoms, PTSD symptoms, disturbances in self-organization (DSO) symptoms, and a low symptom class were found by LCA. Both prolonged interpersonal trauma and other types of trauma were risk factors for the CPTSD class and the PTSD class. Conclusions: The results of this study partially support the factorial validity and strongly support the discriminant validity of the ICD-11 proposals for PTSD and CPTSD in Chinese children, supporting the conceptualization of PTSD and CPTSD as sibling diagnoses based on the ICD-11. However, findings suggest the need for careful consideration of identified trauma types in the ICD-11 proposals.

Evidence of distinct profiles of ICD-11 post-traumatic stress disorder (PTSD) and complex PTSD in a South African sample

ABSTRACT Background: Both post-traumatic stress disorder (PTSD) and complex post-traumatic stress disorder (CPTSD) have been included in the 11th edition of the International Classification of Diseases (ICD-11). Although the validity of CPTSD has been controversial, a growing number of studies support the distinction between PTSD and CPTSD. However, the majority of this research has originated in high-income countries (HICs), whereas the prevalence of trauma experience associated with PTSD/CPTSD diagnosis is significantly higher in low- and middle-income countries (LMICs). Objective: This study assessed whether a sample from an LMIC setting produced distinct classes that reflect ICD-11 criteria for PTSD and CPTSD. Furthermore, this study investigated whether childhood trauma distinguished between PTSD and CPTSD. Method: International Trauma Questionnaire responses from a sample of South African university undergraduates were used as indicator variables in a latent class analysis (LCA). Chi-squared tests of independence and Kruskal–Wallis H tests were used to assess between-class differences. Results: The LCA identified four distinct classes: a PTSD class with elevated symptoms of PTSD, but low endorsement of disturbances in self-organization (DSO; symptoms that are specific to CPTSD); a CPTSD class with elevated symptoms of PTSD and DSO; a DSO class with low symptoms of PTSD, but elevated symptoms of DSO; and a Low class with low endorsements on all symptoms. Regarding childhood trauma, participants in the CPTSD class had more severe childhood abuse and neglect, specifically emotional abuse and neglect, than participants in the PTSD class. Conclusions: Findings were consistent with the distinction between PTSD and CPTSD symptom profiles in the ICD-11. Our findings support a similar qualitative distinction between PTSD and CPTSD in our LMIC context, as previously reported in HICs. This distinction is especially relevant in LMICs because of the significant number of individuals vulnerable to these disorders.

Using Latent Class Analysis to Support the ICD-11 Complex Posttraumatic Stress Disorder Diagnosis in a Sample of Homeless Adults.

The 11th revision of the International Classification of Diseases (ICD-11), ratified at the World Health Assembly in May 2019, introduced revised diagnostic guidelines for posttraumatic stress disorder (PTSD) as well as a separate diagnosis of complex PTSD (CPTSD). We aimed to test the new ICD-11 symptom structure for PTSD and CPTSD in a sample of individuals who have experienced homelessness. Experiences of trauma exposure and the associated mental health outcomes have been underresearched in this population. A sample of adults experiencing homelessness (N = 206) completed structured and semi-structured interviews that collected information about trauma exposure and symptoms of PTSD and CPTSD. We conducted a latent class analysis (LCA) using six symptom clusters (three PTSD symptom clusters that are components of CPTSD and three CPTSD symptom clusters). All participants reported trauma exposure, with 88.6% having experienced at least one event before 16 years of age. Four distinct classes of participants emerged in relation to the potential to meet the diagnosis: LCA CPTSD (n = 122, 59.8%), LCA no diagnosis (n = 27: 13.2%), LCA PTSD (n = 33; 16.2%), and LCA disturbance in self-organization (DSO; n = 22; 10.8%). Of note, participants with an ICD-11 CPTSD as well as those with an ICD-11 PTSD diagnosis fell into the LCA CPTSD class. Our findings provide some support for the distinction between CPTSD and PTSD within this population specifically but potentially have broader implications. Clear diagnoses will allow targeted PTSD and CPTSD treatment development.

Complex posttraumatic stress disorder in Chinese young adults using the International Trauma Questionnaire (ITQ): A latent profile analysis

BackgroundThe ICD-11 includes posttraumatic stress disorder (PTSD) and complex PTSD (CPTSD) as two distinct disorders. Several empirical studies have supported the distinction between PTSD and CPTSD in various trauma population and different culture backgrounds. However, research documenting qualitatively distinction between PTSD and CPTSD using the International Trauma Questionnaire (ITQ) in a large general population from non-English-speaking countries is limited. MethodsSelf-report measures were used to assess CPTSD, dissociation, depression, and posttraumatic growth in a sample of 1,760 Chinese college students who had experienced at least one traumatic event. Latent profile analysis was utilized to identify the number of classes based on the 18-item version of ITQ. ResultsA four-class solution (low symptoms, disturbance of self-organization, PTSD, CPTSD) was the most appropriate one in our study. Compared to the PTSD class, the CPTSD class was associated with more serious psychopathology symptoms. LimitationsSample characteristics in this study limit its generalizability to other population (e.g., low educational level, clinical sample). The type of traumatic event in predicting distinct classes should also be investigated in future studies. ConclusionsDistinction between PTSD and CPTSD as ICD-11 proposed was supported in a Chinese young adult sample. DSO symptoms might inhibit healing and recovery process, and subsequent intervention could consider treat CPTSD based on addressing DSO symptoms.

Complex trauma, PTSD and complex PTSD in African refugees

ABSTRACT Background: The introduction of the diagnosis of complex posttraumatic stress disorder (CPTSD) by ICD-11 is a turning point in the field of traumatic stress studies. It’s therefore important to examine the validity of CPTSD in refugee groups exposed to complex trauma (CT) defined as a repeated, prolonged, interpersonal traumatic event. Objective: The objective of this study was to compare DSM-5 and ICD-11 post-traumatic stress disorder diagnoses and to evaluate the discriminant validity of ICD-11 PTSD and CPTSD constructs in a sample of treatment-seeking refugees living in Italy. Method: The study sample included 120 treatment-seeking African refugees living in Italy. All participants were survivors of at least one CT. PTSD and CPTSD diagnoses were assessed according to both DSM-5 and ICD-11 criteria. Results: Findings revealed that 79% of the participants met the DSM-5 criteria for PTSD, 38% for ICD-11 PTSD and 30% for ICD-11 CPTSD. Generally, ICD-11 CPTSD items evidenced strong sensitivity and negative predictive power, low specificity and positive predictive power. Latent class analysis results identified two distinct groups: (1) a PTSD class, (2) a CPTSD class. None of the demographic and trauma-related variables analysed was significantly associated with diagnostic group. On the other hand, the months spent in Italy were significantly associated with PCL-5 score. Conclusions: Findings extend the current evidence base to support the discriminant validity of PTSD and CPTSD amongst refugees exposed to torture and other gross violations of human rights. The results suggest also that, in the post-traumatic phase, the time spent in a ‘safe place’ condition contributes to improve the severity of post-traumatic symptomatology, but neither this variable nor other socio-demographic factors seem to contribute to the emergence of complex PTSD. Further investigations are needed to clarify which specific vulnerability factors influence the development of PTSD or CPTSD in refugees exposed to complex trauma.

Validation of ICD-11 PTSD and complex PTSD in foster children using the International Trauma Questionnaire.

Objective ICD‐11 introduces post‐traumatic stress disorder (PTSD) and complex PTSD (CPTSD) as two distinct trauma‐related disorders. Using the International Trauma Questionnaire (ITQ) as disorder‐specific measure, this study is the first to examine the factorial and construct validity of ICD‐11 PTSD, CPTSD and the ITQs’ applicability in children.MethodsTwo hundred and eight Austrian foster children completed a set of standardized measures. Excluding participants who reported not having experienced any kind of trauma, a final sample of 136 children completed the ITQ. Factorial and construct validity of ICD‐11 CPTSD and psychometric properties of ITQ scales were assessed by factor analysis and latent class analysis.ResultsConfirmatory factor analysis supported the two‐factor higher‐order model of ICD‐11 CPTSD in children by high factor loadings and excellent model fit. Reliability and regression analysis evidenced psychometric adequacy and discriminant validity of ITQ scales. Latent class analysis substantiated construct validity of ICD‐11 CPTSD, identifying a CPTSD (22.8%), PTSD (31.6%) and low symptoms class (45.6%). The CPTSD class showed highest rates of childhood trauma, comorbid psychopathology and functional impairment.ConclusionFactorial and construct validity of ICD‐11 CPTSD was evidenced in children for the first time using precise descriptions of ICD‐11 symptom content, supporting the reliability and validity of the ITQ in children.

Complex posttraumatic stress disorder (CPTSD) following captivity: a 24-year longitudinal study

ABSTRACT Background: The World Health Organization(WHO) International Classification of Diseases, 11th version (ICD-11), has proposed a new trauma-related diagnosis of complex posttraumatic stress disorder (CPTSD), separate and distinct from posttraumatic stress disorder (PTSD). However, to date, no study has examined CPTSD over time. Objectives: This prospective study aimed to examine predictors and outcomes of latent classes of PTSD and CPTSD following war captivity. Method: A sample of 183 Israeli former prisoners of the 1973 Yom Kippur War (ex-POWs) participated in a 24-year longitudinal study with three waves of measurements (T1: 1991, T2: 2008, and T3: 2015). Participants completed validated self-report measures, and their cognitive performance was assessed using the Montreal Cognitive Assessment (MoCA). Results: A Latent Class Analysis (LCA) identified three main classes at T2: (1) a small class with low probability to meet PTSD and CPTSD clusters criteria (15.26%); (2) a class high only in PTSD symptoms (42.37%) and (3) a class high only in CPTSD symptoms (42.37%). Importantly, higher levels of psychological suffering in captivity at T1 were associated with higher odds of being in the CPTSD class at T2. In addition, CPTSD at T2 was more strongly associated with low self-rated health, functional impairment, and cognitive performance at T3, compared to the PTSD only class. Conclusions: Adulthood prolonged trauma of severe interpersonal intensity such as war captivity is related to CPTSD, years after the end of the war. Exposure to psychological suffering in captivity is a risk factor for future endorsement of CPTSD symptoms. CPTSD among ex-POWs is a marker for future dire mental health and functional consequences.

Complex Posttraumatic Stress Disorder in Patients Exposed to Emotional Neglect and Traumatic Events: Latent Class Analysis

The inclusion of a complex posttraumatic stress disorder (CPTSD) diagnosis in the 11th revision of the International Classification of Diseases reflects growing evidence that a subgroup of individuals with PTSD also suffer from disturbances in emotion regulation, interpersonal skills, and self-concept, which together are termed "disturbances in self-organization" (DSO). Although CPTSD is assumed to result from exposure to complex traumatic events, emotional neglect may be an important contributor. This study investigated the presence of CPTSD, defined by endorsement of PTSD and DSO symptoms in a clinical postwar generation sample. The sample consisted of 218 patients who had been exposed to emotional neglect in childhood, a subgroup of whom had also been exposed to potentially traumatic events. Using items from the Harvard Trauma Questionnaire and the Brief Symptom Inventory, a latent class analysis revealed two classes: high endorsement of almost all CPTSD symptoms (n = 83; 38.1%) and low endorsement of all CPTSD symptoms (n = 135; 61.9%). Contrary to our hypothesis, no DSO-only class was found. The R3step method showed gender and number of traumatic events to be significant predictors of class membership. Compared to the low endorsement class, individuals in the CPTSD class were more likely to be female, p = .013, and to report a higher number of traumatic experiences, p < .001. The potential intermediary role of emotional neglect in the development of DSO and CPTSD is discussed.

The complexity of trauma exposure and response: Profiling PTSD and CPTSD among a refugee sample.

This study investigated the latent dimensional and categorical structure of ICD-11 complex posttraumatic stress disorder (CPTSD) within a refugee sample. A subsample that identified as refugee (n = 308) was selected from the National Epidemiological Survey on Alcohol and Related Conditions. Factor mixture modeling (FMM) was employed to establish the dimensional structure of CPTSD symptomology and the categorical distribution of these dimensions. It was then evaluated whether trauma history could differentiate between the distribution of trauma response profiles. A correlated 6-factor model with 5 latent classes was the best fitting model. Two classes were characterized by symptom profiles that were consistent with ICD-11 CPTSD and PTSD formulations. The remaining classes were characterized by nonspecific variation across dimensions. CPTSD class membership was predicted by traumas that were predominantly interpersonal in nature (serious neglect, physical assault, and sexual assault), whereas PTSD class membership was predicted by situational traumatic experiences (unarmed civilian in a conflict environment and a serious accident). A distinct dose-response effect was evident between cumulative traumatic exposure and CPTSD class membership. FMM class profiles distinguished between PTSD and CPTSD symptom formulations. Moreover, class membership was determined by specific trauma-exposure histories. (PsycINFO Database Record (c) 2019 APA, all rights reserved).

Hyperactivation and hypoactivation affective dysregulation symptoms are integral in complex posttraumatic stress disorder: Results from a nonclinical Israeli sample.

The current study sought to further assess the nature of the affect dysregulation (AD) cluster of the International Classification of Diseases-11 (ICD-11) proposal for complex posttraumatic stress disorder (CPTSD) in a nonclinical sample. An online survey sample from Israel (n=618) completed a disorder-specific measure (International Trauma Questionnaire) of PTSD and CPTSD along with the Life Events Checklist and the World Health Organization Well-Being Index. Estimated prevalence rates of PTSD and CPTSD were 9.2% and 1.0%, respectively. Confirmatory factor analysis results indicated that AD symptoms are better conceived as two correlated dimensions of hyperactivation and hypoactivation symptoms. Latent class analysis results indicated that CPTSD was clearly distinguishable from PTSD. CPTSD class membership was associated with higher levels of traumatization and poorer psychological well-being scores. Findings support the discriminant validity of the ICD-11 proposals for PTSD and CPTSD in a nonclinical sample using a disorder-specific measure. The results provide further evidence that the final symptom profile for CPTSD in ICD-11 should model the AD cluster using both hyperactivation and hypoactivation symptoms.

The structure of ICD-11 PTSD and complex PTSD in Lithuanian mental health services

ABSTRACTBackground: The updated 11th edition of International Classification of Diseases (ICD-11) is expected to be released by the WHO in 2018. Disorders specifically associated with stress will be included in a separate chapter in ICD-11, and will include a revision of ICD-10 PTSD as well as a new diagnosis of complex posttraumatic stress disorder (CPTSD). The proposed symptom structures of ICD-11 PTSD and CPTSD have been validated in several studies previously, however few studies have used the International Trauma Questionnaire (ITQ), a specific measure for ICD-11 PTSD and CPTSD. Given that ICD-11 PTSD and CPTSD diagnoses are intended to be applicable across different cultures and nations, it is important that the constructs be evaluated across diverse populations and languages.Objective: Study of the psychological impact of trauma is relatively new in Lithuania, coinciding with its independence from the Soviet Union in the 1990s. Studies thus far reveal a population suffering from the effects of long-term and systematic political oppression and violence. The aim of this study was to assess the validity of the symptoms and structure of PTSD and CPTSD in a Lithuanian treatment-seeking sample as measured by the ITQ.Method: A total of 280 patients from outpatient mental health centres participated in this study. PTSD and CPTSD symptoms were measured with the ITQ. We applied confirmatory factor analysis (CFA) and latent class analysis (LCA) for analysis of data.Results and conclusions: Our study supported the ICD-11 factor structure of CPTSD, and a three-class model was supported in LCA analysis with a PTSD class, a CPTSD class, and a low symptom class. Findings support the factorial and discriminant validity of the ICD-11 proposals for PTSD and CPTSD in a unique clinical population.

Are posttraumatic stress disorder (PTSD) and complex-PTSD distinguishable within a treatment-seeking sample of Syrian refugees living in Lebanon?

The World Health Organization will publish its 11th revision of the International Classification of Diseases (ICD-11) in 2018. The ICD-11 will include a refined model of posttraumatic stress disorder (PTSD) and a new diagnosis of complex PTSD (CPTSD). Whereas emerging data supports the validity of these proposals, the discriminant validity of PTSD and CPTSD have yet to be tested amongst a sample of refugees. Treatment-seeking Syrian refugees (N=110) living in Lebanon completed an Arabic version of the International Trauma Questionnaire; a measure specifically designed to capture the symptom content of ICD-11 PTSD and CPTSD. In total, 62.6% of the sample met the diagnostic criteria for PTSD or CPTSD. More refugees met the criteria for CPTSD (36.1%) than PTSD (25.2%) and no gender differences were observed. Latent class analysis results identified three distinct groups: (1) a PTSD class, (2) a CPTSD class and (3) a low symptom class. Class membership was significantly predicted by levels of functional impairment. Support for the discriminant validity of ICD-11 PTSD and CPTSD was observed for the first time within a sample of refugees. In support of the cross-cultural validity of the ICD-11 proposals, the prevalence of PTSD and CPTSD were similar to those observed in culturally distinct contexts.