What happened matters: Trauma type and cumulative trauma exposure in refugee youth psychopathology.

OBJECTIVE: Trauma exposure-a contributor to psychological risk for refugee youth-is typically assessed using cumulative indices; however, recent findings indicate that trauma type may better predict psychological outcomes. This study investigated the utility of two methods of classifying trauma exposure-cumulative trauma and exposure to specific types of trauma (i.e., trauma subtypes)-in predicting the severity of symptoms related to posttraumatic stress disorder (PTSD) and anxiety for refugee youth. METHOD: 96 Syrian and Iraqi youth resettled as refugees in the United States self-reported trauma exposure and psychological symptoms. Multiple regression was used to assess the variance in symptom severity explained by specific trauma subtypes (i.e., victimization, death threat, and accidental/injury) as compared to cumulative trauma scores. RESULTS: Multiple regression models predicting PTSD revealed cumulative trauma (b = 0.07; p = .004) and death threat trauma (b = 0.16; p = .001) as significant predictors of PTSD symptom severity; notably, death threat trauma was the only subtype associated with PTSD and explained more variance than cumulative trauma scores (10.3% and 8.4%, respectively). Cumulative trauma, but no specific trauma subtype, was associated with anxiety (b = .03; p = .043); however, this relation did not survive correction for multiple comparisons. CONCLUSION: Focused trauma assessment-particularly consideration of death threat trauma and cumulative trauma exposures-may be useful in evaluating the risk of PTSD symptoms in refugee youth, whereas symptoms related to anxiety may be driven by other factors. These findings can be leveraged toward focused identification of youth at highest risk for PTSD symptoms, to improve prevention and early intervention efforts. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

The fear that remains: Associations between trauma, related psychopathology, and fear-potentiated startle in youth resettled as refugees.

Fear-potentiated startle (FPS) can be used to measure fear and safety learning-behaviors affected by trauma that may map onto posttraumatic stress disorder (PTSD). Therefore, FPS could be a candidate biomarker of trauma-related psychopathology and a potential identifier of trauma-exposed youth in need of focused treatment. We enrolled n = 71 (35 females, Mage  = 12.7 years) Syrian youth exposed to civilian war trauma. Eyeblink electromyogram (EMG) data from a differential conditioning FPS paradigm were obtained 2.5 years after resettlement. Youth provided self-report of trauma exposure (Harvard Trauma Questionnaire) and PTSD symptoms (UCLA PTSD Reaction Index). While FPS during conditioning was not associated with symptoms, associations with psychopathology emerged in fear extinction. Probable PTSD was associated with FPS in the last block of extinction, such that FPS to threat cue was significantly greater in the PTSD+ group compared to the PTSD- group at the end of extinction (F = 6.25, p = .015). As with adults, we observed a deficit in extinction learning but not fear conditioning in youth with PTSD. These results support the use of trauma-informed cognitive behavioral therapy based on the learning principles of extinction in youth with PTSD.

The Predictive Utility of Trauma Subtypes in the Assessment of Mental Health Outcomes for Persons Resettled as Refugees.

Pre-migration trauma, a psychological risk factor for refugees, is often measured using cumulative indices. However, recent research suggests that trauma subtypes, rather than cumulative trauma, may better predict psychological outcomes. This study investigated the predictive utility of trauma subtypes in the assessment of refugee mental health. Multiple regression was used to determine whether cumulative trauma or trauma subtypes explained more variance in depression, anxiety, and post-traumatic stress disorder (PTSD) symptom scores in 70 Syrian and Iraqi refugees. Subtype models performed better than cumulative trauma models for PTSD (cumulative R2 = 0.138; subtype R2 = 0.32), anxiety (cumulative R2 = 0.061; subtype R2 = 0.246), and depression (cumulative R2 = 0.041; subtype R2 = 0.184). Victimization was the only subtype significantly associated with PTSD (p < 0.001; r2 = 0.210), anxiety (p < 0.001; r2 = 0.162), and depression (p = 0.002; r2 = 0.140). Cumulative trauma was predictive of PTSD symptoms only (p = 0.003; r2 = 0.125). Trauma subtypes were more informative than cumulative trauma, indicating their utility for improving predictive efforts in research and clinical contexts.

Skin conductance response to trauma interview as a candidate biomarker of trauma and related psychopathology in youth resettled as refugees.

Background: Posttraumatic stress symptoms (PTSS) include a constellation of physical and emotional profiles that youth exposed to trauma may experience. An estimated 20% of youth are exposed to trauma, and in refugee populations, up to 54% experience posttraumatic stress. Given the physical and mental health consequences associated with trauma exposure and subsequent psychopathology, identifying biomarkers of symptom severity is a top research priority.Objective: Previous research in adults found that skin conductance responses to trauma interview predicted current and future PTSS. We extended this method to refugee youth exposed to civilian war trauma and forced migration, to examine associations between PTSS and skin conductance in this uniquely vulnerable child and adolescent population.Methods: 86 refugee youth ages 7-17 years completed a trauma interview and assessment of self-reported PTSS. The mobile eSense app on a iPad was used to obtain continuous recordings of skin conductance level (SCL) during a trauma interview (trauma SCL). Skin conductance response (SCR) was calculated by subtracting the baseline SCL from the maximum amplitude of the trauma SCL.Results: SCL during trauma was significantly greater than baseline SCL, Trauma exposure was significantly associated with SCR to trauma interview, R2 = .084, p = .042. SCR to trauma interview was positively correlated with reexperiencing (R2 = .127, p = .028), and hyperarousal symptoms (R 2 = .123, p = .048).Conclusions: The present study provides evidence for feasibility of SCR to trauma interview as a candidate biomarker of PTSS in youth. This is the first study to look at SCR to trauma interview in youth resettled as refugees and is part of the limited but growing body of research to look at biomarkers in refugee cohorts more broadly. As the number of forcibly displaced persons surges, early detection and prevention of trauma-related psychology is becoming more important than ever. HIGHLIGHTS: Using the mobile eSense app, we demonstrate that skin conductance is measurable in a variety of research settings and that skin conductance response may be a biological indicator of trauma and related psychopathology - namely re-experiencing symptoms - in youth resettled as refugees.

Research With Refugees and Vulnerable Populations in a Post-COVID World: Challenges and Opportunities.

At the Stress, Trauma and Anxiety Research Clinic (STARC) at Wayne State University in Detroit, we are currently amid data collection for a longitudinal prospective study of Syrian refugee children and their parents. Funded by the Eunice Kennedy Shriver National Institute of Child Health and Human Development, our goal is to understand the impact of exposure to war trauma and the stress of migration on symptoms of posttraumatic stress disorder, anxiety, and depression, as well as the neurobiological, epigenetic, and environmental correlates of risk and resilience. Like many research groups around the world, the COVID-19 pandemic brought our work to a screeching halt. Researchers who, like us, were engaged in human subjects research were left grappling with the question of how to continue their work while ensuring the safety of both research staff and participants, and while maintaining scientific integrity. In March 2020, our institution halted all in-person human subjects research that did not have direct benefits to participants, which continued until October, when research activity was resumed subject to implementation of modified procedures. Over the past 2 years, we have pivoted, adapted, and flexed, ultimately making changes that have allowed us to continue successful data collection throughout the pandemic. This article will discuss the specific challenges of working with ethnically minoritized and immigrant populations during the pandemic, the adaptations that we implemented to enable safe and effective data collection, as well as the new knowledge that we can apply to future research protocols.