How to quantify exposure to traumatic stress? Reliability and predictive validity of measures for cumulative trauma exposure in a post-conflict population

The impact of parental acceptance and childhood maltreatment on mental health and physical pain in Burundian survivors of childhood sexual abuse

BACKGROUND

Parental support has been suggested to mitigate mental and physical consequences following childhood sexual abuse (CSA). However, many CSA survivors experience parental rejection post-CSA.

OBJECTIVE

We aimed to understand the impact of abuse-specific parental acceptance on post-traumatic stress disorder (PTSD) and physical pain in Burundian CSA-survivors. We further assessed the significance of parental acceptance among known risk factors for predicting PTSD.

METHODS, PARTICIPANTS, AND SETTINGS

Participants (N = 131, 80.9 % female, mean age 16.21 years) were recruited via primary health care centers for survivors of sexual violence which survivors approached post-CSA. Survivors reported on PTSD symptoms, daytime/nighttime pain, and adverse childhood experiences in semi-structured interviews. Parental acceptance levels were categorized (acceptance, no acceptance, no contact) for mothers and fathers separately. Kruskal-Wallis tests assessed group differences. Conditional random forests (CRF) evaluated the significance of parental acceptance in predicting PTSD symptom severity.

RESULTS

No significant differences regarding PTSD symptoms and physical pain between levels of maternal acceptance were obtained. Pairwise comparisons revealed significant differences in PTSD symptom severity between paternal acceptance and no acceptance (d = 1.04) and paternal acceptance and no contact (d = 0.81). The CRF identified paternal acceptance as important variable for the prediction of PTSD symptom severity. Even though results were less conclusive, medium effect sizes hint at less pain perception within the paternal acceptance group.

CONCLUSIONS

The results highlight paternal acceptance as a potential risk or protective factor regarding psychological and possibly physical well-being in the aftermath of CSA, even in the context of other known risk factors.

Differential methylation of linoleic acid pathway genes is associated with PTSD symptoms - a longitudinal study with Burundian soldiers returning from a war zone

Soldiers may be exposed to traumatic stress during combat deployment and thus are at risk for developing posttraumatic stress disorder (PTSD). Genetic and epigenetic evidence suggests that PTSD is linked to forming stress-related memories. In the current study, we investigated post-deployment associations of PTSD symptoms with differential DNA methylation in a sample of Burundian soldiers returning from the African Union Mission in Somalia's war zone. We used a matched longitudinal study design to explore epigenetic changes associated with PTSD symptoms in N = 191 participants. PTSD symptoms and saliva samples were collected at 1-3 (t1) and 9-14 months (t2) after the return of the soldiers to their home base. Individuals with either worsening or improving PTSD symptoms were matched for age, stressful, traumatic and self-perpetrated events prior to the post-assessment, traumatic and violent experiences between the post- and the follow-up assessment, and violence experienced during childhood. A mixed model analysis was conducted to identify top nominally significantly differentially methylated genes, which were then used to perform a gene enrichment analysis. The linoleic acid metabolism pathway was significantly associated with post-deployment PTSD symptoms, after accounting for multiple comparisons. Linoleic acid has been linked to memory and immune related processes in previous research. Our findings suggest that differential methylation of linoleic acid pathway genes is associated with PTSD and thus may merit closer inspection as a possible mediator of resilience.

COVID-19 Pandemic and Food Insecurity Fuel the Mental Health Crisis in Africa

Objective: Providing country-level estimates for prevalence rates of Generalized Anxiety Disorder (GAD), COVID-19 exposure and food insecurity (FI) and assessing the role of persistent threats to survival-exemplified by exposure to COVID-19 and FI-for the mental health crisis in Africa. Methods: Original phone-based survey data from Mozambique, Sierra Leone, Tanzania and Uganda (12 consecutive cross-sections in 2021; n = 23,943) were analyzed to estimate prevalence rates of GAD. Logistic regression models and mediation analysis using structural equation models identify risk and protective factors. Results: The overall prevalence of GAD in 2021 was 23.3%; 40.2% in Mozambique, 17.0% in Sierra Leone, 18.0% in Tanzania, and 19.1% in Uganda. Both COVID-19 exposure (ORadj. 1.4; CI 1.3-1.6) and FI (ORadj 3.2; CI 2.7-3.8) are independent and significant predictors of GAD. Thus, the impact of FI on GAD was considerably stronger than that of COVID-19 exposure. Conclusion: Persistent threats to survival play a substantial role for mental health, specifically GAD. High anxiety prevalence in the population requires programs to reduce violence and enhance social support. Even during a pandemic, addressing FI as a key driver of GAD should be prioritized by policymakers.

Anxiety and mood disorders in forcibly displaced people across the world

PURPOSE OF REVIEW

Displaced persons around the world have intensified in the previous decade and are predicted to rise further with greater global instability. The mental health issues involved with fleeing one's home, and attempting to make a new life in a host country need to be understood and addressed.

RECENT FINDINGS

Prevalence of anxiety and mood disorders, including posttraumatic stress disorder appear to be higher for displaced peoples than for the population in the host country. This is consistent across different methods. Traumatic life events in the country of origin as well as during flight contribute to symptom severity. Factors in the host country increasing severity including isolation, discrimination, low social support. There are successfully implemented intercultural interventions at the individual level of the practitioner, as well as at the institutional level.

SUMMARY

There are many possibilities for successful interventions in displaced people, realizing this at a scale appropriate to the size of the problem remains a challenge.

Measuring post-traumatic stress disorder and complex post-traumatic stress disorder using the International Trauma Questionnaire: results from a Hungarian clinical and non-clinical sample

Background: The 11th revision of the International Classification of Diseases (ICD-11) simplified the description of post-traumatic stress disorder (PTSD) and also introduced a new trauma-related diagnosis called complex post-traumatic stress disorder (CPTSD). CPTSD is linked to earlier, prolonged interpersonal trauma, and is characterized by a broader range of symptoms, in addition to the core PTSD symptoms. The International Trauma Questionnaire (ITQ) has been developed to assess the new diagnostic criteria.Objectives: The primary aim of our study was to test the factor structure of the ITQ in a clinical and a non-clinical Hungarian sample. We also examined whether the degree of traumatization or the type of trauma experienced was associated with meeting the criteria for PTSD or CPTSD, or with the severity of PTSD or disturbances in self-organization (DSO) symptoms, in both samples.Method: A trauma-exposed heterogeneous clinical sample (N = 176) and a non-clinical sample (N = 229) filled out the ITQ and a modified version of the Life Events Checklist (LEC-5). The factor structure of the ITQ was tested by examining the model fit of seven competing confirmatory factor analysis models.Results: A two-factor second-order model with a second-order PTSD factor (measured by three first-order factors) and a DSO factor (measured directly by six symptoms) had the best fit to the data in both samples if an error correlation was allowed between negative self-concept items. Those in the clinical group who reported more interpersonal and childhood trauma experienced more PTSD and DSO symptoms. Also, there were significant, positive, and weak associations between the total number of different traumas and PTSD and DSO factor scores in both samples.Conclusion: ITQ was found to be a reliable tool to differentiate between PTSD and CPTSD, two related but distinct constructs in a clinical and a non-clinical trauma-exposed sample in Hungary.

Patterns of posttraumatic stress symptoms, their predictors, and comorbid mental health symptoms in traumatized Arabic-speaking people: A latent class analysis

Many people from the Middle East and North Africa (MENA) have experienced traumatic events due to human rights abuses, violence, and conflict in the region, with potential psychological consequences including symptoms of posttraumatic stress and comorbid mental health problems. Yet, little is known about how different posttraumatic stress symptoms unfold in Arabic-speaking people who have experienced diverse traumatic events. This study examined latent classes based on posttraumatic stress symptoms, differences across classes concerning comorbid mental health symptoms and quality of life, and several predictors, including sociodemographic characteristics, social support, and trauma-related characteristics. Participants were 5,140 traumatized Arabic-speaking individuals who had registered for an online intervention. Latent class analysis was conducted to identify distinct classes based on DSM-5 posttraumatic stress symptoms. Multinomial logistic regression was used to analyze predictors of class membership. Differences between classes in severity of posttraumatic stress, depressive, anxiety, and somatoform symptoms, as well as quality of life were examined. Five different latent classes were identified: a general high posttraumatic stress symptom class (43.8%), a high posttraumatic stress symptom-low avoidance class (12.8%), a mixed posttraumatic stress symptom class (20.9%), a high dysphoric-low reexperiencing/avoidance class (14%), and a general low posttraumatic stress symptom class (8.4%). The classes differed in severity of posttraumatic stress, depressive, anxiety and somatoform symptoms, and quality of life. Consistent significant predictors of class membership were gender, social support, cumulative trauma exposure, sexual violence and direct exposure during the most distressing trauma, as well as time since the most distressing trauma. Distinct symptom classes with quantitative and qualitative differences can emerge following exposure to trauma among help-seeking Arabic-speaking people from the MENA region, with gender, social support, and trauma-related characteristics predicting symptom presentation. The results have implications for identifying distressed people and enhancing interventions based on an individual's symptom presentation.

Sexual violence affects adolescents' health and prosocial behaviour beyond other violence exposure

Background: Sexual violence is a public health issue among adolescents globally but remains understudied in Sub-Saharan Africa.Objective: The present study focused on the association of cumulative exposure to different types of sexual violence with mental and physical health problems and prosocial behaviour.Method: We conducted a survey with a regionally representative sample of both in-school and out-of-school adolescents, aged 13-17 years, living in south-western Nigeria. Self-reported exposure to sexual violence, behavioural problems, physical complaints, and prosocial behaviour were assessed.Results: About three quarters of the participants reported the experience of sexual violence (74.6%). Multiple regression models revealed that the more types of sexual violence an individual reported, the more mental and physical health problems, and the fewer prosocial behaviours they reported when controlling for other forms of violence exposure. Latent class analysis revealed three severity classes of sexual violence. Symptoms of mental and physical health indicators were significantly higher as exposure increased by group whereas prosocial behaviours were non-significantly fewer in the opposite direction.Conclusion: This study revealed a consistent and unique relation between sexual violence exposure and negative health outcomes among adolescents. Further research on sexual violence in Sub-Saharan Africa and its associations is needed.

Traumatic Life Events and Association With Depression, Anxiety, and Somatization Symptoms in Female Refugees

Importance

Different types of traumatic life events have varying impacts on symptoms of depression, anxiety, and somatization. For women from areas of the world experiencing war and humanitarian crises, who have experienced cumulative trauma exposure during war and forced migration, it is not known whether cumulative trauma or particular events have the greatest impact on symptoms.

Objective

To examine which traumatic life events are associated with depression, anxiety, and somatization symptoms, compared with the cumulative amount, in a sample of female refugees.

Design, Setting, and Participants

For this cross-sectional study, data were collected in 2016 as a part of The Study on Female Refugees. The current analysis was conducted in 2022 to 2023. This multicenter study covered 5 provinces in Germany. Participants were recruited at reception centers for refugees. Women volunteered to participate and to be interviewed after information seminars at the different centers.

Exposure

Traumatic life events experienced by refugees from areas of the world experiencing war and humanitarian crises.

Main Outcomes and Measures

Demographic variables (age, country of origin, religion, education, relationship status, and children), traumatic and adverse life events, and self-reported depression, anxiety, and somatization symptoms were measured. Random forest regressions simultaneously examined the importance of these variables on symptom scores. Follow-up exploratory mediation models tested potential associative pathways between the identified variables of importance.

Results

For the final sample of 620 refugee women (mean [SD] age, 32.34 [10.35] years), family violence was most associated with depression (mean [SD] variable of importance [VIM], 2.93 [0.09]), anxiety (mean [SD] VIM, 4.15 [0.11]), and somatization (mean [SD] VIM, 3.99 [0.15]), even though it was less common than other traumatic experiences, including war, accidents, hunger, or lack of housing. Other factors, such as childhood sexual abuse, injury, near-death experiences, and lack of access to health care, were also important. Follow-up analyses showed partial mediation effects between these factors in their association with symptoms, supporting the unique importance of family violence in understanding mental health.

Conclusions and Relevance

The findings of this cross-sectional study of refugee women who experienced multiple severe traumas related to war in their home countries and danger encountered during their migration suggest that family violence was key to their current mental health problems. Culturally sensitive assessment and treatment need to place special emphasis on these family dynamics.

Mapping Individual, Relational, and Contextual Factors onto Posttraumatic Stress Symptoms and Resilience

Posttraumatic stress symptoms (PTSS) and resilience are two well-established outcomes following trauma exposure, but little work has examined the unique associations between these outcomes and factors across the social ecology. This theoretically grounded study assessed how individual, relational, and contextual social ecological factors relate to PTSS and resilience. Participants included 606 college students (18-25 years, M_age = 20.79, SD = 1.86; 82.51% Female; 56.60% White, 29.37% Black or African American, 5.78% Asian, 8.25% Other races) with exposure to at least one traumatic event. Two hierarchical linear regression models examined associations between individual (i.e., emotion dysregulation, anger severity), relational (i.e., family support, friend support), and contextual (i.e., community cohesion, community disorder) factors, and PTSS and resilience. At the individual level, higher emotion dysregulation was associated with higher PTSS and lower resilience; anger severity was not related to either outcome. At the relational level, more friend support was negatively associated with PTSS. Friend and family support were positively related to resilience. At the contextual level, community cohesion was positively associated with resilience, but not PTSS, and community disorder was unrelated to both outcomes. Findings demonstrate unique factors across the social ecology that differentially relate to PTSS and resilience. Variables at all three ecological levels were associated with resilience, whereas only individual and relational variables were related to PTSS. Replication with longitudinal data could inform treatments for trauma-exposed individuals that may mitigate PTSS and bolster resilience.

Weathering within war: Somatic health complaints among Vietnamese older adults exposed to bombing and violence as adolescents in the American war

OBJECTIVE

People living in war may experience deteriorating health via weathering (wear and tear) from long-term exposures to psychosocial and environmental stressors. Weathering embodied in somatic health complaints may illuminate the effects of war on health.

METHODS

We investigate whether wartime stress exposures occurring during adolescence and early adulthood affect weathering in late adulthood via linear regression with data from the Vietnamese Health and Aging Study (VHAS). VHAS is a cross-sectional study wherein investigators surveyed 2447 adults aged 60+ in four districts of northern and central Vietnam in 2018. These same individuals ranged in age from seven to 52 in 1965, with most having been in adolescence or early adulthood at the peak of the American war in Vietnam (1965-1975). The sample used for this study (n = 2254) were participants in the first VHAS wave in 2018.

RESULTS

We find older Vietnamese adults exposed to higher-intensity provincial bombing suffer more numerous somatic health complaints (unstandardized β = 0.005, SE = 0.001, p = 0.001). Additionally, greater health complaints emerge among older adults whose most intense bombing exposures were at younger ages of adolescence (< age 15) as compared to those whose peak exposures were in older ages (19-25) (unstandardized β = 0.62 95%, SE = 0.19, p = 0.01).

CONCLUSION

Our findings suggest that age of exposure to armed conflict is a critical determinant of weathering across the life course.

Epigenetics of traumatic stress: The association of NR3C1 methylation and posttraumatic stress disorder symptom changes in response to narrative exposure therapy

Epigenetic processes allow plasticity in gene regulation in response to significant environmental events. Accumulating evidence suggests that effective psychotherapy is accompanied by epigenetic changes, rendering DNA methylation a potential biomarker of therapy success. Due to the central role of glucocorticoid dynamics in stress regulation and the alteration of aversive memories, glucocorticoid receptors are likely involved in the molecular processes that are required to successfully treat Posttraumatic Stress Disorder (PTSD). This study aimed to investigate the relationship between methylation at the glucocorticoid receptor gene (NR3C1) and PTSD treatment success of evidence-based psychotherapy. A sample of N = 153 conflict survivors from Northern Uganda (98 females and 55 males) with PTSD were treated with Narrative Exposure Therapy (NET). Diagnostic interviews and saliva sampling took place at pretreatment and 4 and 10 months after treatment completion. We investigated potential associations between PTSD symptom development and methylation changes at 38 CpG sites spanning NR3C1 over the three times of measurement using the repeated measures correlation. After accounting for multiple comparisons, DNA methylation at CpG site cg25535999 remained negatively associated with PTSD symptoms. These results were followed up by mixed models as well as structural equation modelling. These analyses revealed that treatment responders had a significant cg25535999 methylation increase after treatment with NET. Furthermore, lower methylation at cg25535999 pretreatment predicted a higher symptom improvement. Our results suggest different epigenetic profile dynamics at NR3C1 cg25535999 in therapy responders compared to non-responders and underscore the central role of glucocorticoid signaling in trauma-focused therapy.

A trauma-informed approach to understanding firearm decision-making among Black adolescents: Implications for prevention

Firearm violence remains a public health crisis in marginalized, urban communities, with Black adolescents bearing the burden of firearm homicides and injuries. As such, the prevention of firearm violence among adolescents has moved to a high priority of the U.S. public health agenda. The current paper reviews recent literature to highlight the heterogeneity in firearm behavior among Black adolescents and underscore the need for additional research on decision-making and firearm behavior to better understand how adolescents make decisions to acquire, carry, and use firearms. Through a discussion of the disproportionate levels of trauma exposure and trauma symptoms experienced by Black adolescents, the current paper also proposes a trauma-informed approach to understanding decision-making for risky firearm behavior. We discuss the broader impacts of this approach, including the development of a more comprehensive and contextually relevant understanding of the variability in risky firearm behavior and improvements in risk screening capabilities and preventive intervention strategies.

The impact of experiencing severe physical abuse in childhood on adolescent refugees' emotional distress and integration during the COVID-19 pandemic

Background

Accumulating evidence highlights the importance of pre- and post- migration stressors on refugees' mental health and integration. In addition to migration-associated stressors, experiences earlier in life such as physical abuse in childhood as well as current life stress as produced by the COVID-19-pandemic may impair mental health and successful integration - yet evidence on these further risks is still limited. The present study explicitly focused on the impact of severe physical abuse in childhood during the COVID-19 pandemic and evaluated the impact of these additional stressors on emotional distress and integration of refugees in Germany.

Methods

The sample included 80 refugees, 88.8% male, mean age 19.7 years. In a semi-structured interview, trained psychologists screened for emotional distress, using the Refugee Health Screener, and integration status, using the Integration Index. The experience of severe physical abuse in childhood was quantified as a yes/no response to the question: "Have you been hit so badly before the age of 15 that you had to go to hospital or needed medical attention?" Multiple hierarchical regression analyses further included gender, age, residence status, months since the start of the COVID-19 pandemic and length of stay in Germany to predict emotional distress and integration.

Results

Two regression analyses determined significant predictors of (1) emotional distress (adjusted R ² = 0.23): duration of being in the pandemic (ß = 0.38, p < 0.001) and severe physical abuse in childhood (ß = 0.31, p = 0.005), and significant predictors of (2) integration (adjusted R ² = 0.53): length of stay in Germany (ß = 0.62, p < 0.001), severe physical abuse in childhood (ß = 0.21, p = 0.019) and emotional distress (ß = -0.28, p = 0.002).

Conclusion

In addition to migration-associated stressors, severe physical abuse in childhood constitutes a pre-migration risk, which crucially affects the well-being, emotional distress and integration of refugees in Germany.

The Influence of Adverse Childhood Experiences in Pain Management: Mechanisms, Processes, and Trauma-Informed Care

Adverse childhood experiences (ACEs) increase the likelihood of reduced physical and psychological health in adulthood. Though understanding and psychological management of traumatic experiences is growing, the empirical exploration of ACEs and physical clinical outcomes remains under-represented and under-explored. This topical review aimed to highlight the role of ACEs in the experience of chronic pain, pain management services and clinical decision making by: (1) providing an overview of the relationship between ACEs and chronic pain; (2) identifying biopsychosocial mechanisms through which ACEs may increase risk of persistent pain; (3) highlighting the impact of ACEs on patient adherence and completion of pain management treatment; and (4) providing practical clinical implications for pain management. Review findings demonstrated that in chronic pain, ACEs are associated with increased pain complications, pain catastrophizing and depression and the combination of these factors further heightens the risk of early treatment attrition. The pervasive detrimental impacts of the COVID-19 pandemic on ACEs and their cyclical effects on pain are discussed in the context of psychological decline during long treatment waitlists. The review highlights how people with pain can be further supported in pain services by maintaining trauma-informed practices and acknowledging the impact of ACEs on chronic pain and detrimental health outcomes. Clinicians who are ACE-informed have the potential to minimize the negative influence of ACEs on treatment outcomes, ultimately optimizing the impact of pain management services.

Is shame the missing link between traumatic experiences and posttraumatic stress disorder in Burundian children living on the streets?

BACKGROUND

Shame is an emotion reflecting an anticipated social devaluation of the self. It is strongly associated with experiences of humiliation and rejection in early life. Individuals suffering from posttraumatic stress disorder (PTSD) often struggle with shame. However, little is known about how shame contributes to the development and maintenance of PTSD symptoms in children. The present study investigated the ways childhood exposure to human-induced traumatic events promotes a coping mechanism of defeat and withdrawal facilitated by the experience of shame. We tested a dose-response relationship between lifetime experienced traumatic event types and PTSD in children using shame as a mediator.

METHODS

We conducted semi-structured interviews with 33 male children who lived and worked on the streets of Bujumbura, the capital of Burundi at the time of data collection. We assessed self-reported PTSD symptom severity, lifetime traumatic event load, violence experienced on the streets, and shame intensity.

RESULTS

Mediation analyses revealed a significant indirect effect of lifetime traumatic events on PTSD symptom severity through shame intensity and a significant indirect effect of violence experienced on the streets on PTSD symptom severity through shame intensity.

CONCLUSION

Our study suggests the mediating role of shame between traumatic experiences as well as violent experiences and PTSD symptom severity in children living on the streets. Shame in children suffering from PTSD seems to play a crucial role in the development and maintenance of PTSD symptoms.

The relation of unrest-related distress with probable depression during and after widespread civil unrest

BACKGROUND

This study investigated whether subjective unrest-related distress was associated with probable depression during and after the 2019 anti-ELAB movement in Hong Kong.

METHODS

Population-representative data were collected from 7157 Hong Kong Chinese in four cross-sectional surveys (July 2019-July 2020). Logistic regression examined the association between subjective unrest-related distress and probable depression (PHQ-9 ⩾ 10), stratified by the number of conflicts/protests across the four timepoints.

RESULTS

Unrest-related distress was positively associated with probable depression across different numbers of conflicts/protests.

CONCLUSION

Unrest-related distress is a core indicator of probable depression. Public health interventions should target at resolving the distress during seemingly peaceful period after unrest.

Predictors and severity of probable acute stress disorder following the Beirut Port Blast

BACKGROUND

The Beirut Port Blast on August 4, 2020 is the largest (non-nuclear) explosion on record. St George Hospital University Medical Center (SGHUMC), a leading academic medical centre in Lebanon, adjacent to the Port, sustained a massive loss in lives and infrastructure.

OBJECTIVE

The current study uses the baseline data of an ongoing longitudinal study to explore the prevalence, severity, and predictors of probable Acute Stress Disorder (ASD) among health workers at SGHUMC following the blast.

METHODS

In the context of COVID-19 tests administered 9-15 days after the blast, SGHUMC staff were asked to complete a questionnaire that included socio-demographic details, the Beirut Port Exposure Inventory, and the Acute Stress Disorder Scale (ASDS).

RESULTS

A total of 570 health workers participated in the study. The prevalence of probable DSM-5 ASD [95%CI] was 38.34% [31.41; 45.32]. Many specific exposures were related, on a bivariate level, to ASD be it as a probable DSM-5 diagnosis or its severity as measured by the ASDS. A classification and regression tree (CART) analysis identified the highest risk predictors of probable DSM-5 ASD diagnosis to be: being a female, seeing dead or mutilated bodies, death of a close one, and being scared at the time of the explosion. Nurses carried the highest risks of all health workers with a probable DSM-5 ASD prevalence of 51.28%, (OR = 3.72 [95% CI: 2.22; 6.25]). Being scared at the time of the blast was the most single predictor of probable ASD.

CONCLUSION

Both the prevalence and severity of probable DSM-5 ASD in this sample are higher than most reported in the literature, which may be explained by the severity of the trauma and the ongoing stress in the context of the pandemic. Fear at the time of the explosion was independently the most predictive parameter of probable ASD.

Elucidating posttraumatic stress symptom dimensions and health correlates among postpartum women

BACKGROUND

Posttraumatic stress disorder (PTSD) is associated with interpersonal dysfunction and adverse maternal health during the perinatal period (extending from conception through one year postpartum). However, PTSD is a heterogeneous disorder, and little is known about which aspects of this disorder may be particularly deleterious to the health of new mothers. Such data may inform more personalized approaches to PTSD prevention and treatment among postpartum women.

METHODS

Using confirmatory factor analysis, we compared three models of PTSD symptom structure-the four-factor dysphoria model, four-factor emotional numbing model, and five-factor dysphoric arousal model-in 1,663 postpartum women from the Community and Child Health Network (CCHN). We examined associations between PTSD symptom dimensions of the best-fitting model with four correlates relevant to maternal health and functioning-parenting stress, partner relationship stress, relationship satisfaction, and contraceptive use.

RESULTS

Though all models fit well, the five-factor dysphoric arousal model provided optimal fit. Symptom dimensions from this model-re-experiencing, avoidance, numbing, dysphoric arousal, and anxious arousal-evidenced differential associations with the maternal health indicators. Numbing symptoms were most strongly associated with indicators of poor interpersonal functioning, whereas dysphoric arousal symptoms were most strongly related to low-efficacy contraceptive use.

LIMITATIONS

Our cross-sectional study assessed DSM-IV PTSD symptoms.

CONCLUSIONS

PTSD symptoms among postpartum women are best-represented by five factors. Numbing symptoms (e.g., restricted affect, detachment) are most strongly associated with interpersonal difficulties, whereas dysphoric arousal symptoms (e.g., agitation, irritability) are linked with low-efficacy contraceptive use. Screening for these symptoms may help promote the health of new mothers.

DNA methylation changes following narrative exposure therapy in a randomized controlled trial with female former child soldiers

The aftermath of traumatization lives on in the neural and epigenetic traces creating a momentum of affliction in the psychological and social realm. Can psychotherapy reorganise these memories through changes in DNA methylation signatures? Using a randomised controlled parallel group design, we examined methylome-wide changes in saliva samples of 84 female former child soldiers from Eastern DR Congo before and six months after Narrative Exposure Therapy. Treatment predicted differentially methylated positions (DMPs) related to ALCAM, RIPOR2, AFAP1 and MOCOS. In addition, treatment associations overlapped at gene level with baseline clinical and social outcomes. Treatment related DMPs are involved in memory formation-the key agent in trauma focused treatments-and enriched for molecular pathways commonly affected by trauma related disorders. Results were partially replicated in an independent sample of 53 female former child soldiers from Northern Uganda. Our results suggest a molecular impact of psychological treatment in women with war-related childhood trauma.Trial registration: Addressing Heightened Levels of Aggression in Traumatized Offenders With Psychotherapeutic Means (ClinicalTrials.gov Identifier: NCT02992561, 14/12/2016).

Association between Work-Related Trauma Exposure and Posttraumatic Stress Symptoms among Child Welfare Workers in Japan: A Cross-Sectional Study

Child welfare workers often experience work-related traumatic events and may be at risk of post-traumatic stress disorder (PTSD), which can hinder early interventions for child abuse. This study examined the association between each single work-related traumatic event experienced by child welfare workers and the cumulative number of traumatic event types with PTSD symptoms. A checklist of traumatic events was used to investigate work-related traumatic events. The PTSD checklist for DSM-5 (PCL-5) was used to screen for PTSD symptoms. Two multivariate analyses were performed. A total of 140 workers were included in the analyses. In the first multivariate analysis, the event, “Witnessed a parent violently beating, hitting, kicking, or otherwise injuring a child or the other parent during work” (β = 11.96; 95% CI, 2.11–21.80; p < 0.05) and resilience (β = −0.60; 95% CI, −0.84 to −0.36; p < 0.01) were significantly associated with PTSD symptoms, as was resilience in the second multivariate analysis (β = −0.60; 95% CI, −0.84 to −0.36; p < 0.01). The association between the cumulative number of event types and PTSD symptoms was not significant, but it was stronger when the cumulative number was four or more. The findings suggest the importance of reducing child welfare worker exposure to traumatic events.

Trauma, mental health, and everyday functioning among Rohingya refugee people living in short- and long-term resettlements

PURPOSE

This study investigated if Rohingya refugee people resettled in camps in rural Bangladesh and urban locations in Malaysia had different levels of trauma, mental health and everyday functioning. The study also examined if direct and indirect exposure to traumatic events could predict PTSD, depression, generalized anxiety, and everyday functioning in the two groups separately. An attempt was also made to see if the relations between trauma and mental health were different across the two settings.

METHODS

This was a cross-sectional study, for which we conveniently recruited 100 adult Rohingyas, 50 from each country; the majority was males. Rohingyas in Bangladesh fled Myanmar's Rakhine State following a major military crackdown in 2017, whereas Rohingyas in Malaysia fled Rakhine gradually over the last three decades because of recurrent violence and military operations. We assessed trauma (cumulative trauma, direct trauma, and indirect trauma), PTSD, depression, generalized anxiety, and everyday functioning of the participants using traumatic event questionnaire, PTSD-8, PHQ-9, GAD-7, and WHODAS-2.0.

RESULTS

The Bangladeshi cohort experienced more types of traumatic events (i.e., cumulative trauma) than did the Malaysian cohort (d = 0.58). Although the two cohorts did not differ in terms of indirect exposure to traumatic incidents (i.e., indirect trauma), the Malaysian cohort had direct exposure to traumatic events (i.e., direct trauma) more frequently than did the Bangladeshi cohort (d = 1.22). The Bangladeshi cohort showed higher PTSD (d = 1.67), depression (d = 0.81), generalized anxiety (d = 1.49), and functional impairment (d = 2.51) than those in Malaysia. Hierarchical linear regression analyses showed that after controlling for demographic variables, both direct and indirect trauma significantly predicted PTSD, depression, and functional impairment among Rohingyas in Bangladesh, with direct trauma being the stronger predictor. However, similar analyses showed that only indirect trauma predicted PTSD among Rohingyas in Malaysia, while all other effects were nonsignificant. The results also showed that the predictive relationship between direct trauma and PTSD was different across the two countries. With the same level of direct trauma, a participant from Malaysia would score 0.256 points lower in PTSD than a participant from Bangladesh.

CONCLUSION

The recently experienced direct and indirect trauma have impaired mental health and everyday functioning among the Bangladeshi cohort. However, only indirect trauma was active to cause PTSD in the Malaysian cohort as direct trauma was weakening due to the time elapsed since migration. We discuss the results in the context of the current theories of trauma and mental health and suggest therapeutic interventions for the refugee population.

Posttraumatic stress disorder among adolescents in Brazil: a cross-sectional study

BACKGROUND

The frequency of trauma and different types of violence exposure in urban areas and their effects on the mental health of adolescents in developing countries are poorly investigated. Most information about traumatized young people comes from war scenarios or disasters. This study aimed to determine the prevalence of PTSD in trauma-exposed students in a low-resource city of the state of Rio de Janeiro, Brazil. The effects of sociodemographic and individual and family factors in the development of PTSD were also investigated.

METHODS

Through multi-stage cluster sampling, 862 adolescents (Mage = 15 years old, 65% female) from public and private schools in the city of São Gonçalo were selected for the study. Self-rating structured questionnaires were applied to assess sociodemographic profile, exposure to physical and psychological violence (family, school, community), sexual abuse, social support, social functional impairment, resilience, and posttraumatic stress disorder. The data were grouped in blocks regarding sociodemographic, individual, family, and community variables. For statistical analysis, chi-square, Fisher's exact test, and logistic regression were performed.

RESULTS

The PTSD prevalence was 7.8% among adolescents. Boys were exposed to significantly higher number of events of community violence, while girls to family violence. The adjusted odds ratio (OR) for PTSD were statistically significant for age (OR, 1.45, [95% CI, 1.043-2.007]), social functional impairment (OR, 4.82, [95% CI, 1.77-13.10]), severe maternal physical violence (OR, 2.79, [95% CI, 0.79-9.93]), psychological violence by significant people (OR, 3.96, [95% CI, 1.89-8.31]) and a high number of episodes of community violence (OR, 3.52, [95% CI, 1.47-8.40).

CONCLUSIONS

There was a high prevalence of PTSD within this population associated with exposure to violence. Not only physical, but also psychological violence contributed to PTSD. The results also raise awareness to the differences in life trajectories between boys and girls regarding violence. These differences need to be better understood in order to enable the development of effective preventative interventions. Treating and preventing mental health disorders presents a challenge for countries, especially those with a lower degree of social and economic development and high community violence.

NETfacts: a community intervention integrating trauma treatment at the individual and collective level

The aim of this article is to present a research-based rationale for NETfacts, a newly developed integrated approach at the individual and the community level in order to mitigate the mental and social sequelae of war and crisis. To this end, we provide a selective review of relevant literature from neuroscience, clinical psychology, and social science. In psychotraumatology, individual avoidance describes the effort to prevent exposure to trauma reminders. Among patients with post-traumatic stress disorder (PTSD), this becomes pathological, exacerbating distress and preventing recovery. This silence resonates in traumatized communities and consequently taboo builds - ultimately to the advantage of the perpetrators. The resulting collective avoidance leads to a fragmented collective memory about trauma or human rights violations in the community so that a shared account of the group's history becomes impossible. The deficient collective memory promotes ambiguous truths and anxiety, enabling a reactive construction of safety based on selective information that leads to an endorsement of extreme opinions. Ongoing insecurity, violence and crime lead to increasing anxiety and fear. The self-interest of the perpetrators and the abnormal behaviour of survivors leads to an escalation in stigma and social exclusion resulting in the prevention or limitation of community exposure to traumatic material, i.e., to reduce tension and protect the construction of safety. The exposure to and recognition of traumatic facts subject to avoidance is key to a coherent collective memory and sense of communion, and to prevent further cycles of violence. The NETfacts health system combines individual and community-based intervention to treat the structure of memory at both the individual and collective levels. Abbreviations: NET: narrative exposure therapy; FORNET: narrative exposure therapy for forensic offender rehabilitation; NETfacts: facts derived from narrative exposure therapy.

Sex differences in PTSD risk: evidence from post-conflict populations challenges the general assumption of increased vulnerability in females

Background: Next to the dose-dependent effect of trauma load, female sex represents a well-established risk factor for PTSD. Exposure to particularly toxic traumatic event types, different coping styles, and biological risk factors are frequently listed as potential causes for the increased PTSD vulnerability in females. Nevertheless, sex differences have not been consistently observed in all study populations. Objective: To investigate sex differences in PTSD risk in post-conflict populations from different countries while considering trauma load. Method: In civilian post-conflict samples from Northern Uganda (N = 1665), Rwanda (N = 433), Syria (N = 974) and Sri Lanka (N = 165), we investigated sex differences in PTSD risk while taking trauma load into account. PTSD and trauma load were assessed using standardized diagnostic interviews. Potential sex differences in PTSD risk were analysed by logistic regression analyses considering trauma load. Results: Across all samples, males reported more traumatic events than females. Both sexes predominantly reported war-related traumatic events. Without considering trauma load, sex effects in PTSD risk were only detected in the Syrian sample. When taking trauma load into account, evidence for an increased PTSD vulnerability in females was found in the Syrian sample, and, to a much lesser extent, in the Northern Ugandan sample. Conclusion: In contrast to the literature, we did not find evidence for a general increased PTSD vulnerability in females. The dose-response effect of trauma load was a much stronger predictor of PTSD risk than sex across all samples.

Measuring Trauma Exposure: Count Versus Variety of Potentially Traumatic Events in a Binational Sample

Traumatic event checklists typically ask respondents to indicate whether they have experienced particular types of potentially traumatic events (PTEs) and then sum these endorsements to gauge cumulative trauma exposure. However, the sum of these endorsements indicates the variety of PTEs respondents have experienced rather than the count of exposure events. The main objective of the present study was to explore the association between PTE count and variety to examine assumptions regarding the use of traumatic event checklists to measure cumulative trauma exposure. The limited empirical research suggests that count and variety are strongly associated; however, there may be variation in magnitude concerning whether participants' environments confer an increased or decreased risk of exposure. We present Life Event Checklist data from a large sample of Mexican and U.S. participants (n = 1,820), which allowed us to compare reports of count and variety. Count and variety were strongly correlated, Kendall's tau-b = .74, such that count accounted for 54.6% of the variance in variety. A negative binomial regression analysis revealed that this association was moderated by county and municipio homicide rate, used as a proxy for violent crime, but not by natural disaster history. Variety was more strongly associated with scores on the Posttraumatic Stress Checklist for DSM-5, Kendall's tau-b = .26, than was PTE count, Kendall's tau-b = .22, Fisher's z = -8.04, p < .001. Although there are challenges in estimating PTE counts, the present findings suggest that PTE variety is not a good proxy for cumulative trauma exposure.

Systematic review and meta-analyses of the long-term efficacy of narrative exposure therapy for adults, children and perpetrators

Objective: Narrative Exposure Therapy (NET) is a short-term trauma-focused intervention originally developed for treating survivors of war and torture. The neurobiological theoretical foundations of NET would suggest that the approach should have long term beneficial effects. We tested this assumption and also provided an extensive overview of all NET studies for adults, for children (KIDNET), and for perpetrators (Forensic Offender Rehabilitation NET; FORNET).Method: Following a systematic literature review, we conducted meta-analyses with all studies that had control conditions, and with all Randomized Controlled Trials (RCTs). We assessed between-groups short- (< 6 months) and long-term (≥ 6 months) effect sizes for symptoms of posttraumatic stress disorder (PTSD) and depression.Results: In a total of 56 studies from 30 countries comparing 1370 participants treated with NET to 1055 controls, we found large between group effect sizes regarding the reduction of PTSD symptoms in favor of NET. Analyses of RCTs with active controls yielded small to medium effect sizes in the short-term, and large effect sizes in the long-term.Conclusions: NET, KIDNET, and FORNET yield beneficial and sustainable treatment results for severely traumatized individuals living in adverse circumstances. Studies in highly developed health care systems comparing NET with other evidence-based trauma-focused interventions are needed.

A combination of combat experience, early abduction, and severe traumatization fuels appetitive aggression and violence among abductees of rebel war in Northern Uganda

Individuals who perpetrate violence may likely perceive violence as appealing and infliction of violence to derive pleasure is termed as appetitive aggression. Individuals who were abducted as children into an armed group often experience a higher number of traumatic event types, that is traumatic load and are usually socialized in a violence-endorsing environment. This study aims to investigate the interaction between age at initial abduction with that of traumatic load, and their influence on appetitive aggression along with perpetration of violent acts by former members of an armed rebel group of both sexes. Semi-structured interviews were conducted among a target group of formerly abducted rebel-war survivors (including participants with and without combat experience) from Northern Uganda. Participants included 596 women and 570 men with N =  1,166 (M_age   =  32.58, SD_age   =  9.76, range: 18-80 years). We conducted robust linear regression models to investigate the influence of age at initial abduction, traumatic load, combat experience, and biological sex on appetitive aggression as well as their perpetrated violent acts. Our study shows, appetitive aggression and the number of perpetrated violent acts were specifically increased in individuals who were abducted young, experienced several traumatic events in their lifetime, and with previous combat experience. For perpetrated violence men showed increased levels whereas for appetitive aggression the association was independent of biological sex. Therefore, early abducted individuals with a higher traumatic load, who have combat experience, need to be given special intervention to prevent any further violence.

Trauma, Aggression, and Post Conflict Perpetration of Community Violence in Female Former Child Soldiers-A Study in Eastern DR Congo

OBJECTIVE

Former combatants are exposed to multiple traumatic stressors during conflict situations and usually participate in perpetration of violence. Ongoing perpetration of violence in post conflict areas, linked to mental health problems and appetitive aggression, destabilises peace keeping efforts. The aim of this study is to investigate lifetime exposure to violence and the relationship between this exposure and mental health and current violent behaviour in a sample of female former child soldiers with a history of perpetration of violence in Eastern DR Congo.

METHODS

98 female former child soldiers who had been abducted and forcibly recruited during the M23 insurgency (2012-2014) were assessed for lifetime exposure to trauma including perpetration of violence, clinical outcomes (PTSD and appetitive aggression), and current violent behaviour.

RESULTS

Female former child soldiers had been exposed to extremely high levels of trauma including perpetration of violence and presented with high levels of mental health problems. Linear regression models showed that current violent behaviour was predicted by both PTSD and appetitive aggression.

CONCLUSIONS

Trauma exposure predicts ongoing perpetration of violence post conflict via the resulting mental health problems. The findings imply that if PTSD and appetitive aggression symptoms are successfully treated, ongoing violent behaviour in the community post conflict will also decrease.

Experimental trauma rapidly modifies functional connectivity

Traumatic events can produce emotional, cognitive and autonomous physical responses. This may ultimately lead to post-traumatic stress disorder (PTSD), a psychiatric syndrome which requires comprehensive treatment. Trauma exposure alters functional connectivity; however, onset and nature of these changes are unknown. Here, we explore functional connectivity changes at rest directly after experimental trauma exposure. Seventy-three healthy subjects watched either a trauma or a control film. Resting state functional magnetic resonance imaging measurements were conducted before and directly after the film. Seed-based analyses revealed trauma-related changes in functional connectivity, specifically including decreases of connectivity between amygdala and middle temporal gyrus and increases between hippocampus and precuneus. These central effects were accompanied by trauma-related increases in heart rate. Moreover, connectivity between the amygdala and middle temporal gyrus predicted subsequent trauma-related valence. Our results demonstrate rapid functional connectivity changes in memory-related brain regions at rest after experimental trauma, selectively relating to changes in emotions evoked by the trauma manipulation. Results could represent an early predictive biomarker for the development of trauma-related PTSD and thus provide an indication for the need of early targeted preventive interventions.

Does cumulative exposure to traumatic stressors predict treatment outcome of community-implemented exposure-based therapy for PTSD?

Background: Posttraumatic Stress Disorder (PTSD) is associated with high levels of functional impairments such as difficulties in academic or occupational performance and in social relationships. With an increasing number of traumatic event types experienced (trauma load), PTSD risk increases in a dose-dependent manner. Accordingly, high rates of PTSD can impair the reconstruction process in post-conflict societies. In order to meet these high needs for mental health services in societies with little access to professional care, task shifting approaches and community-based interventions have been suggested. Narrative Exposure Therapy (NET) has been developed as a short and pragmatic exposure-based PTSD treatment that can be easily trained to lay personnel. Yet, it remains unclear whether NET can be effectively provided by trained lay counsellors even at high levels of trauma load. Objective: To investigate whether trauma load influences the treatment effectiveness of NET provided by trained and supervised local lay counsellors. Method: Linear mixed models were calculated to investigate the influence of trauma load on treatment effectiveness in a sample of N = 323 rebel war survivors from Northern Uganda with PTSD. Results: We found a strong reduction of PTSD symptoms following NET, which was not influenced by trauma load. However, individuals with higher levels of trauma load reported higher PTSD symptoms before therapy as well as 4 and 10 months following treatment completion compared to individuals with lower trauma load. Conclusions: Treatment with NET by lay counsellors is effective independent of trauma load. However, individuals with higher trauma load have a higher probability to show residual symptoms, which might require additional time, sessions or treatment modules.

The cycle of violence as a function of PTSD and appetitive aggression: A longitudinal study with Burundian soldiers

During deployment, soldiers face situations in which they are not only exposed to violence but also have to perpetrate it themselves. This study investigates the role of soldiers' levels of posttraumatic stress disorder (PTSD) symptoms and appetitive aggression, that is, a lust for violence, for their engaging in violence during deployment. Furthermore, factors during deployment influencing the level of PTSD symptoms and appetitive aggression after deployment were examined for a better comprehension of the maintenance of violence. Semi-structured interviews were conducted with 468 Burundian soldiers before and after a 1-year deployment to Somalia. To predict violent acts during deployment (perideployment) as well as appetitive aggression and PTSD symptom severity after deployment (postdeployment), structural equation modeling was utilized. Results showed that the number of violent acts perideployment was predicted by the level of appetitive aggression and by the severity of PTSD hyperarousal symptoms predeployment. In addition to its association with the predeployment level, appetitive aggression postdeployment was predicted by violent acts and trauma exposure perideployment as well as positively associated with unit support. PTSD symptom severity postdeployment was predicted by the severity of PTSD avoidance symptoms predeployment and trauma exposure perideployment, and negatively associated with unit support. This prospective study reveals the importance of appetitive aggression and PTSD hyperarousal symptoms for the engagement in violent acts during deployment, while simultaneously demonstrating how these phenomena may develop in mutually reinforcing cycles in a war setting.

Patterns and evidence of human rights violations among US asylum seekers

BACKGROUND

Asylum seekers report exposure to human rights violations associated with a range of psychological and medical sequelae. Clinical evaluators can provide forensic evaluations that document evidence associated with their reports of persecution. The aim of this study was to characterize the forms of abuse experienced by asylum seekers, the psychological consequences of abuse, and the frequency with which clinician-evaluators found evidence that corroborated asylum seekers' reports.

METHOD

We completed a retrospective chart review of 121 asylum seekers who received pro bono medical-legal evaluations through a human rights program and analyzed data using the constant comparative method.

RESULTS

Eighty-eight percent of the clients reported experiencing multiple human rights abuses. Ninety-one percent of the clients who received psychological evaluations presented with symptoms associated with depression, anxiety, or trauma and stressor-related disorders. Clinician-evaluators found physical or psychological evidence consistent with the clients' reports in 97% of cases. Forms, perpetrators, and psychological consequences of abuse varied significantly by gender and geographic region.

DISCUSSION

Asylum seekers report diverse forms of persecution in their countries of origin that differ by gender and geographic region. Clinician-evaluators overwhelmingly found physical and psychological evidence consistent with the asylum seekers' accounts of persecution.

Successfully treating refugees' post-traumatic stress symptoms in a Ugandan settlement with group cognitive behaviour therapy

BACKGROUND

High rates of post-traumatic stress disorder (PTSD) are documented within refugee populations. Although research supports effectiveness of trauma-focused cognitive behaviour therapy (TF-CBT) among Western populations, little research exists for its efficacy among refugees living in camps and settlements in developing nations.

AIMS

To investigate whether a culturally sensitive, group-based TF-CBT programme (EMPOWER) delivered in a Ugandan refugee settlement effectively reduced refugees' post-traumatic stress symptoms (PTSS), and whether sociodemographic factors, trauma characteristics, or PTSS severity related to programme completion or treatment outcomes.

METHOD AND RESULTS

Data linkages were conducted on information provided by 174 Congolese refugees living in a Ugandan settlement (mean age = 33.4 years, SD = 11.7; 49% male). Using a quasi-experimental design, participants who initially completed the intervention (n = 43) delivered across nine 90-minute sessions, reported significant reductions in self-reported PTSS with a large effect size. The delayed treatment group (n = 55) also reported significant treatment gains once they received the intervention. Participants who completed the programme reported significantly greater initial PTSS severity than those who dropped out, while no sociodemographic factors, trauma characteristics or PTSS were associated with better treatment outcomes.

DISCUSSION

A culturally sensitive, group-based TF-CBT programme delivered in a refugee settlement meaningfully reduces refugees' PTSS severity and is equally effective for all participants, with the highest retention rates found among those in greatest need of treatment. Programmes such as this, with capacity to treat hundreds of people simultaneously, represent highly cost-effective, accessible, disseminable and effective treatment for PTSS among refugees living in humanitarian settings in developing nations.

NTRK2 methylation is related to reduced PTSD risk in two African cohorts of trauma survivors

Extensive pharmacologic, genetic, and epigenetic research has linked the glucocorticoid receptor (GR) to memory processes, and to risk and symptoms of posttraumatic stress disorder (PTSD). In the present study we investigated the epigenetic pattern of 12 genes involved in the regulation of GR signaling in two African populations of heavily traumatized individuals: Survivors of the rebel war in northern Uganda (n = 463) and survivors of the Rwandan genocide (n = 350). The strongest link between regional methylation and PTSD risk and symptoms was observed for NTRK2, which encodes the transmembrane receptor tropomyosin-related kinase B, binds the brain-derived neurotrophic factor, and has been shown to play an important role in memory formation. NTRK2 methylation was not related to trauma load, suggesting that methylation differences preexisted the trauma. Because NTRK2 methylation differences were predominantly associated with memory-related PTSD symptoms, and because they seem to precede traumatic events, we next investigated the relationship between NTRK2 methylation and memory in a sample of nontraumatized individuals (n = 568). We found that NTRK2 methylation was negatively associated with recognition memory performance. Furthermore, fMRI analyses revealed NTRK2 methylation-dependent differences in brain network activity related to recognition memory. The present study demonstrates that NTRK2 is epigenetically linked to memory functions in nontraumatized subjects and to PTSD risk and symptoms in traumatized populations.

Evolutionary conserved role of neural cell adhesion molecule-1 in memory

The neural cell adhesion molecule 1 (NCAM-1) has been implicated in several brain-related biological processes, including neuronal migration, axonal branching, fasciculation, and synaptogenesis, with a pivotal role in synaptic plasticity. Here, we investigated the evolutionary conserved role of NCAM-1 in learning and memory. First, we investigated sustained changes in ncam-1 expression following aversive olfactory conditioning in C. elegans using molecular genetic methods. Furthermore, we examined the link between epigenetic signatures of the NCAM1 gene and memory in two human samples of healthy individuals (N = 568 and N = 319) and in two samples of traumatized individuals (N = 350 and N = 463). We found that olfactory conditioning in C. elegans induced ncam-1 expression and that loss of ncam-1 function selectively impaired associative long-term memory, without causing acquisition, sensory, or short-term memory deficits. Reintroduction of the C. elegans or human NCAM1 fully rescued memory impairment, suggesting a conserved role of NCAM1 for memory. In parallel, DNA methylation of the NCAM1 promoter in two independent healthy Swiss cohorts was associated with memory performance. In two independent Sub-Saharan populations of conflict zone survivors who had faced severe trauma, DNA methylation at an alternative promoter of the NCAM1 gene was associated with traumatic memories. Our results support a role of NCAM1 in associative memory in nematodes and humans, and might, ultimately, be helpful in elucidating diagnostic markers or suggest novel therapy targets for memory-related disorders, like PTSD.

Compassion-focused therapy for trauma in people with intellectual disabilities: A conceptual review

Trauma exposure and post-traumatic stress disorder are more prevalent in people with intellectual disabilities (PWID) than in the general population, yet the evidence base for trauma interventions in this population is sparse. Compassion-focused therapy (CFT) may be particularly well-suited to PWID for a number of reasons, including its adaptability to different developmental levels. PWID are more likely to have issues with self-relating (e.g. shame and self-criticism) and attachment than the general population, two issues that are compounded by trauma and which CFT explicitly seeks to address. Furthermore, compassion-focused approaches emphasize cultivating a sense of safeness while empowering people to make behavioural changes; this is particularly pertinent to PWID who have been traumatized and may feel unsafe and disempowered. An overview of CFT and its application to trauma are given, as well as some case studies using CFT with PWID.

Effects of Narrative Exposure Therapy on Posttraumatic Stress Disorder, Depression, and Insomnia in Traumatized North Korean Refugee Youth

Refugees affected by multiple traumatic stressors are at high risk for developing trauma-related mental disorders, including posttraumatic stress disorder (PTSD), depression, and insomnia, which is sometimes overlooked. The present study examined the effectiveness of narrative exposure therapy (NET) on trauma-related symptoms in a sample of North Korean refugee youth. We focused on sleep patterns in addition to changes in symptom severity for PTSD, depression, and internalizing and externalizing symptoms. North Korean refugee youth (N = 20) with PTSD were assigned to either an NET-based treatment group or a control group, which consisted of treatment as usual (TAU). There were clinically significant reductions in PTSD, depression, and internalizing and externalizing symptoms for the NET group, Hedges' g = 3.6, but not the TAU group. The change in diagnostic status for PTSD was more notable for participants in the NET group compared to the TAU group. Of note, NET also produced a significant improvement in insomnia symptoms and sleep quality, Hedges' g = 2.1. The substantial recovery regarding overall posttraumatic symptoms in the NET group was observed 2 weeks after the end of treatment and remained stable at 6-month follow-up. The results of the present study suggest that NET may be a treatment option for traumatized North Korean refugee youth and may also be effective for the treatment of sleep problems that arise from traumatic experiences.

Severity profiles of posttraumatic stress, depression, anxiety, and somatization symptoms in treatment seeking traumatized refugees

BACKGROUND

Western countries are facing many challenges hosting refugees from several regions in the world. Many of them are severely traumatized and suffer from a variety of mental health symptoms, which complicates the identification and treatment of refugees at risk. This study examined subgroups based on a broad range of psychopathology, and several predictors, including trauma characteristics and gender.

METHODS

Participants were 1147 treatment-seeking, traumatized refugees. Latent profile analysis was conducted to identify different subgroups based on levels of posttraumatic stress disorder (PTSD), depression, anxiety, and somatic symptoms. Multinomial logistic regression was used to identify predictors of subgroup membership.

RESULTS

Three distinct subgroups were identified, reflecting Moderate (10.2%), Severe (43.0%), and Highly Severe (45.9%) symptom severity levels, respectively. Symptom severity of all psychopathology dimensions was distributed equally between the subgroups. Participants in the Severe and Highly Severe Symptoms subgroups reported more types of traumatic events compared to the Moderate subgroup. In particular, traumatic events associated with human right abuses, lack of human needs and separation from others predicted subgroup membership, as did gender.

LIMITATIONS

The results are confined to treatment-seeking, traumatized refugee populations.

CONCLUSIONS

Distinguishable symptom severity profiles of PTSD, depression, anxiety and somatic complaints could be identified in this large treatment-seeking refugee population, without qualitative differences in symptom distribution. Instead of focusing on specific mental disorders, classification based on overall symptom severity is of interest in severely traumatized patients. This knowledge will help to identify individuals at risk and to enhance existing treatment programs for specific patient groups.

Alienation Appraisals Mediate the Relationships between Childhood Trauma and Multiple Markers of Posttraumatic Stress

Rates of posttraumatic stress are elevated in individuals who have experienced childhood and/or cumulative trauma, and trauma appraisals have been suggested as a possible mediator of this effect. This study tested the proposed mediating role of trauma appraisals between both childhood and cumulative trauma, and two markers of trauma-related distress; posttraumatic stress and depression. Mediation models were developed and tested with data collected from a sample of trauma-exposed, treatment receiving adults (N = 106). Trauma appraisals fully mediated relationships between childhood trauma and PTSD/depression. Appraisals also mediated the relationships between cumulative trauma and depression. When appraisal subscales were simultaneously entered, alienation appraisals were the only significant mediator of these relationships. The study found support for the proposed mediating role of trauma appraisals between different forms of trauma and trauma related distress. Alienation appraisals were particularly emphasised.

Gender differences in response to war-related trauma and posttraumatic stress disorder - a study among the Congolese refugees in Uganda

BACKGROUND

The wars in the Democratic Republic of Congo have left indelible marks on the mental health and functioning of the Congolese civilians that sought refuge in Uganda. Even though it is clear that civilians who are exposed to potentially traumatizing events in war and conflict areas develop trauma-related mental health problems, scholarly information on gender differences on exposure to different war-related traumatic events, their conditional risks to developing PTSD and whether the cumulative exposure to traumatic events affects men and women differently is still scanty.

METHODS

In total, 325 (n = 143 males, n = 182 females) Congolese refugees who lived in Nakivale, a refugee settlement in the Southwestern part of Uganda were interviewed within a year after their arrival. Assessment included exposure to war-related traumatic events, and DSM-IV PTSD symptom severity.

RESULTS

Our main findings were that refugees were highly exposed to war-related traumatic events with experiencing dangerous flight as the most common event for both men (97%) and women (97%). The overall high prevalence of PTSD differed among women (94%) and men (84%). The highest conditional prevalence of PTSD in women was associated with experiencing rape. The dose-response effect differed significantly between men and women with women showing higher PTSD symptom severity when experiencing low and moderate levels of potentially traumatizing event types.

CONCLUSION

In conflict areas, civilians are highly exposed to different types of war-related traumatic events that expose them to high levels of PTSD symptoms, particularly women. Interventions focused at reducing mental health problems resulting from war should take the context of gender into consideration.

de Quervain D, Elbert T, Kolassa I. Integrated genetic, epigenetic, and gene set enrichment analyses identify NOTCH as a potential mediator for PTSD risk after trauma: Results from two independent African cohorts

The risk of developing posttraumatic stress disorder (PTSD) increases with the number of traumatic event types experienced (trauma load) in interaction with other psychobiological risk factors. The NOTCH (neurogenic locus notch homolog proteins) signaling pathway, consisting of four different trans-membrane receptor proteins (NOTCH1-4), constitutes an evolutionarily well-conserved intercellular communication pathway (involved, e.g., in cell-cell interaction, inflammatory signaling, and learning processes). Its association with fear memory consolidation makes it an interesting candidate for PTSD research. We tested for significant associations of common genetic variants of NOTCH1-4 (investigated by microarray) and genomic methylation of saliva-derived DNA with lifetime PTSD risk in independent cohorts from Northern Uganda (N1 = 924) and Rwanda (N2 = 371), and investigated whether NOTCH-related gene sets were enriched for associations with lifetime PTSD risk. We found associations of lifetime PTSD risk with single nucleotide polymorphism (SNP) rs2074621 (NOTCH3) (puncorrected = 0.04) in both cohorts, and with methylation of CpG site cg17519949 (NOTCH3) (puncorrected = 0.05) in Rwandans. Yet, none of the (epi-)genetic associations survived multiple testing correction. Gene set enrichment analyses revealed enrichment for associations of two NOTCH pathways with lifetime PTSD risk in Ugandans: NOTCH binding (pcorrected = 0.003) and NOTCH receptor processing (pcorrected = 0.01). The environmental factor trauma load was significant in all analyses (all p < 0.001). Our integrated methodological approach suggests NOTCH as a possible mediator of PTSD risk after trauma. The results require replication, and the precise underlying pathophysiological mechanisms should be illuminated in future studies.

Deconstructing Traumatic Mission Experiences: Identifying Critical Incidents and Their Relevance for the Mental and Physical Health Among Emergency Medical Service Personnel

Emergency medical service (EMS) personnel frequently encounter emotionally stressful or even traumatic incidents in their line of duty. In this study, a checklist of emotionally stressful events for the German EMS was introduced. A mixed-method approach was used to identify mission events that were critical for the development of mental and physical stress symptoms. Data were collected in a cross-sectional sample of 102 EMS employees. A quantitative content analysis of the participants' worst experiences on duty indicated, traumatic missions to be a concatenation of two to five emotionally stressful events. Rescue missions were experienced as traumatic if (i) EMS personnel became victims of attacks or threats; (ii) certain circumstances caused them to give up their professional detachment from patients; (iii) EMS personnel perceived the overall mission as exceptionally tragic. In subsequent correlation analyses, the corresponding checklist items showed consistent positive associations with the post-traumatic, depressive and physical stress symptoms among the study cohort. Within the exploratory regressions, the sum score of critical on-duty exposures contributed incrementally to the prediction of mental and physical stress symptoms when non-work-related trauma exposure and perceived social support were also considered. Findings point toward the importance of considering the cumulative burden of critical incidents for the long-term health of EMS personnel. Future research is needed to investigate, how on-duty trauma affects the social support EMS personnel received from their work and personal relationships.

Associations Among Childhood Trauma, Childhood Mental Disorders, and Past-Year Posttraumatic Stress Disorder in Military and Civilian Men

To identify early life factors associated with posttraumatic stress disorder (PTSD), we investigated the association between childhood trauma and mental disorders with International Classification of Diseases (ICD)-diagnosed past-year PTSD in employed military and civilian men. Data were derived from the 2010 Australian Defence Force (ADF) Mental Health Prevalence and Wellbeing Study (N = 1,356) and the 2007 Australian Bureau of Statistics (ABS) National Survey of Mental Health and Wellbeing Study (N = 2,120) and analyzed using logistic regression and generalized structural equation modeling. After controlling for demographics, PTSD was associated with childhood anxiety, adjusted odds ratio (AOR) = 3.94, 95% CI [2.36, 6.58]; and depression, AOR = 7.01, 95% CI [2.98, 16.49], but not alcohol use disorders, in the ADF. In civilians, PTSD was associated with childhood anxiety only, AOR = 7.06, 95% CI [3.50, 14.22]. These associations remained significant after controlling for childhood and adult trauma in both populations and service factors and deployment, combat, or adult trauma in the ADF. In both populations, PTSD was associated with more than three types of childhood trauma: AOR = 2.97, 95% CI [1.53, 5.75] for ADF and AOR = 5.92, 95% CI [3.00, 11.70] for ABS; and childhood interpersonal, but not noninterpersonal, trauma: AOR = 3.08, 95% CI [1.61, 5.90] for ADF and AOR = 6.63, 95% CI [2.74, 16.06] for ABS. The association between childhood trauma and PTSD was fully mediated by childhood disorder in the ADF only. Taking a lifetime perspective, we have identified that the risk of PTSD from childhood trauma and disorder is potentially predictable and, therefore, modifiable.

Gewalterfahrungen und psychische Gesundheit im Verlauf bei unbegleiteten minderjährigen Flüchtlingen in Deutschland

Zusammenfassung. Hintergrund: Über die seelische Gesundheit von minderjährigen Flüchtlingen, die ohne sorgeberechtigte Person nach Deutschland gereist sind, liegen bisher kaum Daten und keinerlei längsschnittliche Untersuchungen vor. Fragestellung: Ziel ist es daher, die psychische Gesundheit im Zusammenhang mit stressvollen Erfahrungen (insbesondere familiäre und organisierte Gewalterfahrungen) sowie deren Entwicklung nach etwa zwei Jahren bei unbegleiteten minderjährig Geflüchteten in Deutschland zu untersuchen. Methode: In einer Querschnittsstudie wurden belastende Erlebnisse sowie posttraumatische, depressive und psychosomatische Symptome bei 57 unbegleiteten und 22 begleiteten minderjährig eingereisten Flüchtlingen mittels strukturierter klinischer Interviews untersucht. Nach durchschnittlich 20 Monaten wurde eine Subgruppe der unbegleiteten Minderjährigen erneut untersucht. Ergebnisse: Ein Drittel der Teilnehmer erfüllte die Kriterien einer PTBS-Diagnose nach DSM-IV. Nach Einbezug einer Gruppe begleiteter minderjähriger Flüchtlinge zeigte sich, dass vor allem organisierte und familiäre Gewalterfahrungen sowie die Dauer der Flucht bedeutsame Prädiktoren hinsichtlich der PTBS-Symptomschwere waren. Für das psychische Wohlbefinden insgesamt waren die erfahrene Gewalt in der Herkunftsfamilie, bestehende Freundschaften und das Vorhandensein von Privatsphäre relevant. Ergebnisse einer Folgeuntersuchung mit einer Teilgruppe der UMF etwa 20 Monate später zeigten, dass die psychische Beeinträchtigung im Durchschnitt unverändert hoch geblieben war. Fazit: Die Möglichkeit einer frühzeitigen psychischen Untersuchung mit Erfassung kindlicher Gewalterlebnisse sowie ein verbesserter Zugang zu einer traumafokussierten Behandlung mit Sprachmittlern sind wichtig, um Leid zu reduzieren und Integration zu ermöglichen.

Genetics of Resilience: Gene-by-Environment Interaction Studies as a Tool to Dissect Mechanisms of Resilience

The identification and understanding of resilience mechanisms holds potential for the development of mechanistically informed prevention and interventions in psychiatry. However, investigating resilience mechanisms is conceptually and methodologically challenging because resilience does not merely constitute the absence of disease-specific risk but rather reflects active processes that aid in the maintenance of physiological and psychological homeostasis across a broad range of environmental circumstances. In this conceptual review, we argue that the principle used in gene-by-environment interaction studies may help to unravel resilience mechanisms on different investigation levels. We present how this could be achieved by top-down designs that start with gene-by-environment interaction effects on disease phenotypes as well as by bottom-up approaches that start at the molecular level. We also discuss how recent technological advances may improve both top-down and bottom-up strategies.

Toward a Better Understanding of Psychological Symptoms in People Confronted With the Disappearance of a Loved One: A Systematic Review

OBJECTIVE

The disappearance of a loved one is claimed to be the most stressful type of loss. The present review explores the empirical evidence relating to this claim. Specifically, it summarizes studies exploring the prevalence and correlates of psychological symptoms in relatives of missing persons as well as studies comparing levels of psychopathology in relatives of the disappeared and the deceased.

METHOD

Two independent reviewers performed a systematic search in PsychINFO, Web of Science, and Medline, which resulted in 15 studies meeting predefined inclusion criteria. Eligible studies included quantitative peer-reviewed articles and dissertations that assessed psychopathology in relatives of missing person.

RESULTS

All reviewed studies were focused on disappearances due to war or state terrorism. Prevalence rates of psychopathology were mainly described in terms of post-traumatic stress disorder and depression and varied considerably among the studies. Number of experienced traumatic events and kinship to the missing person were identified as correlates of psychopathology. Comparative studies showed that psychopathology levels did not differ between relatives of missing and deceased persons.

CONCLUSIONS

The small number of studies and the heterogeneity of the studies limit the understanding of psychopathology in those left behind. More knowledge about psychopathology postdisappearance could be gained by expanding the focus of research beyond disappearances due to war or state terrorism.

Posttraumatic stress disorder and traumatic brain Injury: Sex differences in veterans

Around half of Iraq and Afghanistan war veterans with traumatic brain injury (TBI) have co-occurring posttraumatic stress disorder (PTSD). Research on the differences between male and female veterans with co-occurring PTSD/TBI is sparse. This study evaluated behavioral health differences between sexes with these conditions. Veterans (N = 1577) completed a structured psychiatric interview, TBI interview, and self-report interviews assessing sleep quality, alcohol use, substance use, pain, depression symptoms, PTSD symptoms, and combat exposure. Groups depended on the presence/absence of a lifetime PTSD diagnosis and history of TBI. Among veterans with PTSD and TBI, males and females were equally likely to meet criteria for current PTSD, and in the PTSD only group, male veterans were more likely to have current PTSD. Male veterans with PTSD were also more likely to meet criteria for lifetime alcohol and substance use disorders (AUD and SUD), and mild TBI. Although TBI severity did not differ between sexes in the TBI only group, female veterans were more likely to have a moderate/severe TBI among veterans with co-occurring PTSD. Female veterans without PTSD and TBI were more likely to have major depressive disorder (MDD). Significant sex differences were found for AUD, MDD, current PTSD, and TBI severity.

Symptom severity in PTSD and comorbid psychopathology: A latent profile analysis among traumatized veterans

Individuals diagnosed with posttraumatic stress disorder (PTSD) show remarkably different symptom presentations. Identification of diagnostic profiles of PTSD may contribute to knowledge about treatment modifications to enhance treatment effectiveness. The present study aimed to identify symptom severity classes among 236 Dutch veterans based on a broad range of psychopathology outcomes, including PTSD, using Latent Profile Analysis (LPA). Moreover, multinomial logistic regression was used to test whether class membership could be predicted by the number and characteristics of traumatic event types, coping and personality dimensions. LPA identified three classes of individuals, defined as average, severe, and highly severe symptom severity classes, respectively. No qualitative differences in the symptom dimensions emerged between classes. Veterans with higher amounts of traumatic experiences and specifically with regard to lack of basic human needs, as well as those using more avoidant and problem-focused coping strategies and with more dysfunctional personality characteristics regarding neuroticism and agreeableness were significantly more often in the severe and/or highly severe symptom classes. In conclusion, general symptom severity was found to be an important diagnostic characteristic in this population. Integrated treatments targeting the broad spectrum of mental health problems may be of importance in treating patients that show low therapeutic recovery.

The Contribution of Posttraumatic Stress Disorder and Depression to Insomnia in North Korean Refugee Youth

Refugees are exposed to multiple traumatic and stressful events and thereby are at higher risk for developing a variety of psychological sequelae including posttraumatic stress disorder (PTSD). However, the relation of PTSD to other mental health conditions has not been fully revealed in refugee populations. The present study investigated relationships among trauma exposure, PTSD, depression, and insomnia in North Korean refugee youth. Seventy-four refugee youth were assessed for exposure to traumatic events, PTSD, depression, and insomnia symptoms. The results showed high rates of multiple trauma exposures among the refugee youth and high incidences of co-occurring symptoms of PTSD and insomnia in those who have multiple trauma. Furthermore, the overall symptoms and four cluster symptoms of PTSD were strongly correlated with insomnia in addition to depression. In the path model to predict insomnia, PTSD affected insomnia only through depression, indicating that the greater the levels of PTSD suffered, the greater the likelihood for developing sleep problems via depression. The present study indicates how sleep problems relate to trauma-related symptoms, i.e., PTSD and depression in refugee populations, and highlights the need for further investigation of the specific relation between sleep problems and trauma-related symptoms for effective evaluation and intervention.

Traumatic events and post-traumatic symptoms in anorexia nervosa

Background: Traumatic Events (TEs) are often seen as risk factors not only for the development of eating disorders (EDs) but also for their impact on the severity of clinical presentation and psychiatric comorbidities. Objective: This study aimed to assess the prevalence and time of occurrence of TEs in the two subtypes of anorexia nervosa (AN; restricting [RAN] and binge-purging [BPAN]) and to investigate differences in TEs (number, type, frequency) as well as clusters of post-traumatic symptoms and emotional dysregulation between the two groups. Method: Seventy-seven hospitalized women were recruited and divided into two subgroups according to their AN subtype. Participants completed the following self-reported measures: Eating Disorder Inventory-2 (EDI-2), Life Events Checklist (LEC), Impact of Events Scale-Revised (IES-R) and the Difficulties in Emotion Regulation Scale (DERS). Results: A higher occurrence of TEs was found in patients with BPAN than in those with RAN. In particular, there were significantly more women in the BPAN group than in the RAN group who had been sexually assaulted. Exposure to TEs happened before the onset of illness in most patients, regardless of the AN subtype. Finally, the BPAN group had significantly higher scores in terms of post-traumatic symptoms and emotional dysregulation than RAN patients. Conclusions: Patients with BPAN showed a higher occurrence of TEs, post-traumatic symptom clusters, and emotional dysregulation than those with RAN. These findings are of interest as treatments could benefit from trauma-informed interventions for those affected by AN, and particularly for those with the binge-purging subtype.