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BACKGROUND: Posttraumatic stress disorder (PTSD) is heritable and a potential consequence of exposure to traumatic stress. Evidence suggests that a quantitative approach to PTSD phenotype measurement and incorporation of lifetime trauma exposure (LTE) information could enhance the discovery power of PTSD genome-wide association studies (GWASs). METHODS: A GWAS on PTSD symptoms was performed in 51 cohorts followed by a fixed-effects meta-analysis (N = 182,199 European ancestry participants). A GWAS of LTE burden was performed in the UK Biobank cohort (N = 132,988). Genetic correlations were evaluated with linkage disequilibrium score regression. Multivariate analysis was performed using Multi-Trait Analysis of GWAS. Functional mapping and annotation of leading loci was performed with FUMA. Replication was evaluated using the Million Veteran Program GWAS of PTSD total symptoms. RESULTS: GWASs of PTSD symptoms and LTE burden identified 5 and 6 independent genome-wide significant loci, respectively. There was a 72% genetic correlation between PTSD and LTE. PTSD and LTE showed largely similar patterns of genetic correlation with other traits, albeit with some distinctions. Adjusting PTSD for LTE reduced PTSD heritability by 31%. Multivariate analysis of PTSD and LTE increased the effective sample size of the PTSD GWAS by 20% and identified 4 additional loci. Four of these 9 PTSD loci were independently replicated in the Million Veteran Program. CONCLUSIONS: Through using a quantitative trait measure of PTSD, we identified novel risk loci not previously identified using prior case-control analyses. PTSD and LTE have a high genetic overlap that can be leveraged to increase discovery power through multivariate methods.

BACKGROUND: This research examined the mental health of a cohort of asylum-seeking children, adolescents and their primary caregiver affected by insecure residency while living in the community, compared to refugees and immigrants. METHODS: The project investigated the prevalence of psychosocial problems among Iranian and Afghani asylum seeker, refugee and immigrant children and adolescents, and their caregivers who arrived in Australia from 2010. In total, n=196 children and adolescents aged 5-18 years, and their primary caregiver were asked about family visa status, country of origin, level of education, parent symptoms of posttraumatic stress disorder (Harvard Trauma Questionnaire) and child wellbeing (Strengths and Difficulties Questionnaire). An additional n=362 Farsi and Dari speaking children, recruited through the Building a New Life in Australia (BNLA) study, a national comparison sample of families with permanent refugee visas, were included. FINDINGS: Asylum seeker children and adolescents displayed significantly more psychosocial problems compared to those with full refugee protection and immigrant background within the current sample and when benchmarked against a national sample of Farsi-Dari speaking refugee children. Higher parental posttraumatic stress disorder symptoms was associated with poorer child and adolescent psychosocial functioning. This effect was more marked in families with insecure residency. INTERPRETATION: Insecure visa status is associated with higher rates of children's mental health problems and a stronger association with parental PTSD symptoms compared to children with secure residency. This raises important questions about Australia's restrictive immigration policies. FUNDING: This project was supported by an Australian Rotary Health Research Fund / Mental Health of Young Australians Research Grant and by the Australian Research Council (DP160104378).

Few studies have examined associations between family-level parental factors, society-level violence, and the emotional and behavioral status of children of refugee populations. Our study used cross-sectional epidemiological data to test a theoretical model of these key associations amongst a community sample of children (n = 162) of West Papuan refugees living in remote town in Papua New Guinea (PNG), a setting of endemic violence and poverty. Culturally adapted instruments were used to assess three types of intra-familial factors (adverse parenting, physical and/or sexual abuse and emotional abuse) and three types of society-level violence and stressors (exposure to systematic violence, peer violence, living difficulties). Emotional and behavioural problems were assessed using the Youth Self-Report Checklist. Path analysis was used to test theoretical associations. Key findings include direct associations between both family-level physical and/or sexual abuse (β =.43; p <.001) and adverse parenting (β =.40; p <.001) with emotional and behavioural problems amongst children. In the broader social domain, peer violence (β =.29; p <.001) had a direct association with children’s emotional and behavioural problems. Several indirect paths demonstrated a chain of relationships involving family- and society-level factors and emotional and behavioural problems in children. Only longitudinal data can provide further support for veridical causal pathways linking family and social factors with adverse emotional and behavioural outcomes in offspring of refugees, thereby supporting mechanisms leading to a transgenerational transmission of adverse mental health outcomes in refugee populations. Such data would give further support for a multisectoral approach to dealing with at risk families in refugee populations, in which attention should focus on supporting parents, and promoting the protection of children from abuse in the family and in the wider society.

Background: Schools play a key role in supporting the well-being and resettlement of refugee children, and parental engagement with the school may be a critical factor in the process. Many resettlement countries have policies in place to support refugee parents' engagement with their children's school. However, the impact of these programs lacks systematic evaluation. This study first aimed to validate self-report measures of parental school engagement developed specifically for the refugee context, and second, to identify parent characteristics associated with school engagement, so as to help tailor support to families most in need. Methods and findings The report utilises 2016 baseline data of a cohort study of 233 Arabic-speaking parents (77% response rate) of 10- to 12-year-old schoolchildren from refugee backgrounds across 5 schools in Sydney, Australia. Most participants were born in Iraq (81%) or Syria (11%), and only 25% spoke English well to very well. Participants' mean age was 40 years old, and 83% were female. Confirmatory factor analyses were run on provisional item sets identified from a literature review and separate qualitative study. The findings informed the development of 4 self-report tools assessing parent engagement with the school and school community, school belonging, and quality of the relationship with the schools' bilingual cultural broker. Cronbach alpha and Pearson correlations with an established Teacher-Home Communication subscale demonstrated adequate reliability (α = 0.67 to 0.80) and construct and convergent validity of the measures (p < 0.01), respectively. Parent characteristics were entered into respective least absolute shrinkage and selection operator (LASSO) regression analyses. The degree of parents' psychological distress (as measured by the Kessler10 self-report instrument) and postmigration living difficulties (PLMDs) were each associated with lower school engagement and belonging, whereas less time lived in Australia, lo

Objective: This paper describes the development of the third edition of the National Health and Medical Research Australian Guidelines for the Prevention and Treatment of Acute Stress Disorder, posttraumatic stress disorder and Complex posttraumatic stress disorder, highlighting key changes in scope, methodology, format and treatment recommendations from the previous 2013 edition of the Guidelines. Method(s): Systematic review of the international research was undertaken, with GRADE methodology used to assess the certainty of the evidence, and evidence to decision frameworks used to generate recommendations. The Guidelines are presented in an online format using MAGICApp. Result(s): Key changes since the publication of the 2013 Guidelines include a new conditional recommendation for Child and Family Traumatic Stress Intervention for children and adolescents with symptoms within the first 3 months of trauma, and a strong recommendation for trauma-focused cognitive behaviour therapy for the child alone or with a caregiver, for those with diagnosed posttraumatic stress disorder. For adults with posttraumatic stress disorder, strong recommendations are made for specific types of trauma-focused cognitive behaviour therapy and conditional recommendations are made for five additional psychological interventions. Where medication is indicated for adults with posttraumatic stress disorder, venlafaxine is now conditionally recommended alongside sertraline, paroxetine or fluoxetine. Conclusion(s): These Guidelines, based on systematic review of the international literature, are intended to guide decision making for practitioners, service planners, funders and those seeking treatment for trauma related mental health concerns. For an Australian Guideline, a critical limitation is the absence of research on the treatment of Australian Aboriginal and Torres Strait Islander peoples. The new online format of the Australian posttraumatic stress disorder Guidelines means that they can

BACKGROUND: Many refugees experience bereavement, and as a result they suffer elevated rates of prolonged grief disorder. Evidence also indicates that elevated rates of psychological disturbance in refugee children can be associated with parental mental health. This study examined the extent to which prolonged grief disorder in refugees is associated with their parenting behaviour and in turn with their children's mental health. METHODS: This study recruited participants from the Building a New Life in Australia prospective cohort study of refugees admitted to Australia between October 2013 and February 2014. The current data were collected in 2015-2016 and comprised 1799 adults, as well as 411 children of the adult respondents. Adult refugees were assessed for trauma history, post-migration difficulties, harsh and warm parenting, probable prolonged grief disorder and posttraumatic stress disorder. Children were administered the Strengths and Difficulties Questionnaire. The current analyses on bereaved refugees comprise 110 caregivers and 178 children. RESULTS: In this cohort, 37% of bereaved refugees reported probable prolonged grief disorder. Path analysis indicated that caregivers' grief was directly associated with children's emotional difficulties. Caregiver warmth was associated with reduced emotional problems in children of refugees with minimal grief but associated with more emotional problems in caregivers with more severe grief. More harsh parenting was associated with children's conduct problems, and this was more evident in those with less severe grief. CONCLUSION: Severity of prolonged grief disorder is directly linked to refugee children's mental health. The association between parenting style, grief severity and children's mental health highlights that managing grief reactions in refugees can benefit both refugees and their children.

This longitudinal study indicates that exposure to the traumas of mass conflict and subsequent depressive symptoms play an important role in pathways leading to functional impairment in the postconflict period among women of child-rearing age. Our study, conducted in Timor-Leste, involved an analytic sample of 1292 women recruited at antenatal clinics in the capital and its surrounding districts. Women were re-interviewed at home 2 years later (77.3% retention). We applied the Edinburgh Postnatal Depression Scale, the Harvard Trauma Questionnaire for conflict-related traumatic events, the WHO Violence Against Women Instrument covering the past year for intimate partner violence and the WHO Disability Assessment Schedule (WHODAS V.2.0) to assess functional impairment. A longitudinal path analysis tested direct and indirect relationships involving past conflict-related trauma exposure, depressive symptoms measured over the two time points and functional impairment at follow-up. The prevalence of predefined clinically significant depressive symptoms diminished from 19.3% to 12.8%. Nevertheless, there was a tendency for depressive symptoms to persist over time (β=0.20; p<0.001). Follow-up depressive symptoms were associated with functional impairment (β=0.35; p<0.001). Reported conflict-related trauma occurring a minimum of 6 years earlier (β=0.23; p<0.001) and past-year physical intimate partner violence (β=0.26; p<0.001) were each associated with depressive symptoms at baseline and at follow-up. A measure of poverty specific to the context and reported health problems in the mother and infant also contributed to depressive symptoms. The findings highlight the association between ongoing trauma-related depressive symptoms and the capacity of women in the childbearing age to function in multiple areas of their lives in a postconflict country. Recognition of these relationships is important in the formulation and implementation of contemporary international recovery and

Background This randomised controlled trial (RCT) aims to compare 6-week posttreatment outcomes of an Integrative Adapt Therapy (IAT) to a Cognitive Behavioural Therapy (CBT) on common mental health symptoms and adaptive capacity amongst refugees from Myanmar. IAT is grounded on psychotherapeutic elements specific to the refugee experience. Methods and findings We conducted a single-blind RCT (October 2017 –May 2019) with Chin (39.3%), Kachin (15.7%), and Rohingya (45%) refugees living in Kuala Lumpur, Malaysia. The trial included 170 participants receiving six 45-minute weekly sessions of IAT (97.6% retention, 4 lost to follow-up) and 161 receiving a multicomponent CBT also involving six 45-minute weekly sessions (96.8% retention, 5 lost to follow-up). Participants (mean age: 30.8 years, SD = 9.6) had experienced and/or witnessed an average 10.1 types (SD = 5.9, range = 1–27) of traumatic events. We applied a single-blind design in which independent assessors of pre- and posttreatment indices were masked in relation to participants’ treatment allocation status. Primary outcomes were symptom scores of Post Traumatic Stress Disorder (PTSD), Complex PTSD (CPTSD), Major Depressive Disorder (MDD), the 5 scales of the Adaptive Stress Index (ASI), and a measure of resilience (the Connor–Davidson Resilience Scale [CDRS]). Compared to CBT, an intention-to-treat analysis (n = 331) at 6-week posttreatment follow-up demonstrated greater reductions in the IAT arm for all common mental disorder (CMD) symptoms and ASI domains except for ASI-3 (injustice), as well as increases in the resilience scores. Adjusted average treatment effects assessing the differences in posttreatment scores between IAT and CBT (with baseline scores as covariates) were −0.08 (95% CI: −0.14 to −0.02, p = 0.012) for PTSD, −0.07 (95% CI: −0.14 to −0.01) for CPTSD, −0.07 for MDD (95% CI: −0.13 to −0.01, p = 0.025), 0.16 for CDRS (95% CI: 0.06–0.026, p ≤ 0.001), −0.12 (95% CI: −0.20 to −0.03, p ≤ 0.001) for

Childhood maltreatment is highly prevalent and serves as a risk factor for mental and physical disorders. Self-reported childhood maltreatment appears heritable, but the specific genetic influences on this phenotype are largely unknown. The aims of this study were to (1) identify genetic variation associated with self-reported childhood maltreatment, (2) estimate SNP-based heritability (h2snp), (3) assess predictive value of polygenic risk scores (PRS) for childhood maltreatment, and (4) quantify genetic overlap of childhood maltreatment with mental and physical health-related phenotypes, and condition the top hits from our analyses when such overlap is present. Genome-wide association analysis for childhood maltreatment was undertaken, using a discovery sample from the UK Biobank (UKBB) (n = 124,000) and a replication sample from the Psychiatric Genomics Consortium-posttraumatic stress disorder group (PGC-PTSD) (n = 26,290). h2snp for childhood maltreatment and genetic correlations with mental/physical health traits were calculated using linkage disequilibrium score regression. PRS was calculated using PRSice and mtCOJO was used to perform conditional analysis. Two genome-wide significant loci associated with childhood maltreatment (rs142346759, p = 4.35 × 10-8, FOXP1; rs10262462, p = 3.24 × 10-8, FOXP2) were identified in the discovery dataset but were not replicated in PGC-PTSD. h2snp for childhood maltreatment was ~6% and the PRS derived from the UKBB was significantly predictive of childhood maltreatment in PGC-PTSD (r2 = 0.0025; p = 1.8 × 10-15). The most significant genetic correlation of childhood maltreatment was with depressive symptoms (rg = 0.70, p = 4.65 × 10-40), although we show evidence that our top hits may be specific to childhood maltreatment. This is the first large-scale genetic study to identify specific variants associated with self-reported childhood maltreatment. Speculatively, FOXP genes might influence externalizing traits and so be releva

Contemporary scalable psychological interventions utilise task-shifting approaches that enable non-specialists such as social workers, nurses and lay persons to deliver structured interventions after a brief training and ongoing supervision by professionals. This field report describes a training-implementation approach we used to train lay counsellors to implement a psychological intervention, Integrative Adapt Therapy (IAT), with Rohingya Refugees in Malaysia. IAT is a theoretically guided programme based on the Adaptation and Development After Persecution and Trauma (ADAPT) model. Unlike existing cognitive behavioural treatment (CBT)-based interventions, IAT helps refugees trace their emotional and behavioural problems to the underlying psychosocial disruptions (reflected in the core ADAPT 'Pillars') they experience. We assessed implementation outcomes by conducting a focus group with the twelve lay IAT counsellors who completed a training workshop followed by six-month supervised implementation of the IAT programme with Rohingya refugees. The implementation outcomes focused on the value and benefits of the programme to the counsellors' clients and broader community, implementation challenges, cultural acceptability, and recommendations for improvement in training. There was a strong agreement amongst the counsellors that both the clients and they themselves benefited from the programme. Furthermore, the general consensus was that the clients reported improvements in their relationships with people (ADAPT Pillar 2: Bonds and Networks), in having a more realistic view about their Roles and Identities (Pillar 4) and in gaining a sense of purpose and meaning in life (Pillar 5: Existential Meaning). In addition, the focus group agreed that the programme fitted well with the culture and values of the Rohingya people. Implementation challenges include ensuring that the intervention team reflects gender balance, that the programme is sustainable and refining strategies

IMPORTANCE Pregnancy may increase the risk of depression among women who self-identify as refugees and have resettled in high-income countries. To our knowledge, no large systematic studies among women with refugee backgrounds in the antenatal period have been conducted. OBJECTIVES To compare the prevalence of major depressive disorder (MDD), trauma exposure, and other psychosocial risk factors among women who identify as refugees, women from the same conflict-affected countries, and women from the host nation and to test whether self-identification as a refugee indicates greater likelihood of prevalence and risk. DESIGN, SETTING, AND PARTICIPANTS This cross-sectional study was undertaken in 3 public antenatal clinics in Sydney and Melbourne, Australia, between January 2015 and December 2016. Overall, 1335 women (685 consecutively enrolled from conflict-affected backgrounds and 650 randomly selected from the host nation) participated. Data analysis was undertaken between June and September 2018. EXPOSURES One-hour interviews covering mental health, intimate partner violence, and other social measures. MAIN OUTCOME AND MEASURES World Health Organization measure for intimate partner violence and the Mini-International Neuropsychiatric Interview from the Diagnostic and Statistical Manual of Mental Disorders (Fourth Edition) for MDD. To make a diagnosis, 1 of 2 items relating to being consistently depressed for 2 weeks and 3 further symptoms that cause personal distress or psychosocial dysfunction were endorsed. RESULTS Overall, 1335women (84.8%overall response rate), comprising 685 (51.3%) from conflictaffected countries (women self-identifying as refugees: 289 [42.2%]) and 650 (48.7%) from the host nation, participated. The mean (SD) age was 29.7 (5.4) years among women from conflictaffected backgrounds and 29.0 (5.5) years among women born in the host nation. Conflict-affected countries included Iraq (260 [38.0%]), Lebanon (125 [18.2%]), Sri Lanka (71 [10.4%]), and S

Background Refugees are at risk of experiencing a combined constellation of complicated bereavement and posttraumatic stress disorder (PTSD) symptoms following exposure to complex traumas associated with personal threat and loss. Features of identity confusion are central to both complicated bereavement and PTSD and these characteristics may be particularly prominent amongst refugees from traditional cultures displaced from their homelands, families, and kinship groups. We investigate whether a combined pattern of complicated bereavement and PTSD can be identified amongst West Papuan refugees participating in an epidemiological survey (n = 486, response rate: 85.8%) in a remote town in Papua New Guinea.Methods Latent class analysis was applied to derive subpopulations of refugees based on symptoms of complicated bereavement and PTSD. Associations were examined between classes and traumatic loss events, post-migration living difficulties (PMLDs), and psychosocial support systems.Results The four classes identified comprised a complicated bereavement class (11%), a combined posttraumatic bereavement class (10%), a PTSD class (11%), and a low symptom class (67%). Symptoms of identity confusion were prominent in the posttraumatic bereavement class. Compared with the low symptom class, the combined posttraumatic bereavement class reported greater exposure to traumatic loss events (OR 2.43, 95% CI 1.11-5.34), PMLDs (OR 2.24, 95% CI 1.01-4.6), disruptions to interpersonal bonds and networks (OR 3.3, 95% CI 1.47-7.38), and erosion of roles and identities (OR 2.18, 95% CI 1.11-4.27).Conclusions Refugees appear to manifest a combined pattern of complicated bereavement and PTSD symptoms in which identity confusion is a prominent feature. This response appears to reflect the combined impact of high levels of exposure to traumatic losses, PMLDs, and disruption of relevant psychosocial systems.

Background: Schools can play a vital role in the resettlement of refugee children and their families. Yet, the body of research examining school environmental factors that support the mental health and acculturation of refugee children is methodologically heterogeneous, investigates numerous and disparate school factors, and is often "hidden" in broader qualitative studies. This limits the capacity to apply the findings in a practical manner. Methods: Based on PRISMA statement principles, we review the relevant literature to investigate the relationship between school climate and the emotional wellbeing and resettlement outcomes of refugee students. Six electronic databases will be systematically searched: MEDLINE, PsycINFO, Embase, CINAL, Web of Science, and ERIC, supplemented by a systematic review of the grey literature, relevant international websites, and sequential, site-specific internet searches. Finally, subject area experts will be consulted and backward and forward citation searches of included articles will be completed. Two independent reviewers will screen identified articles against eligibility criteria and extract data for included studies. Quality of included studies will be assessed using the Mixed Methods Appraisal Tool (MMAT) for mixed studies reviews. Data will be synthesised using a convergent qualitative narrative approach. Discussion: Given the centrality of school in the daily lives of resettled refugee children, it is vital to assess the impact of school climate on the psychosocial wellbeing and resettlement trajectories of this population. This review will identify evidence-based school factors which support good mental health and resettlement outcomes for refugee students and make recommendations for translation of this knowledge into the school environment.

Purpose: Refugees may be at risk of experiencing a complicated form of bereavement. As yet, however, the nosological status of this putative category across cultures remains in question. We apply qualitative and quantitative methods to investigate the manifestations, prevalence, factorial structure and psychosocial correlates of complicated bereavement amongst refugees from West Papua, a population with no past exposure to western concepts of grief or to formal mental health services. Methods: Qualitative methods (focus groups and informant interviews) were used to identify cultural expressions of complicated bereavement derived from international classification systems, that is, DSM 5 persistent complex bereavement disorder (PCBD) and ICD-11 prolonged grief disorder (PGD) in developing a structured interview applied by trained field workers. Participants were adult West Papuan refugees and their offspring recruited from households (n = 486, response 85.8%) across nine villages in a remote town in Papua New Guinea. Results: The qualitative data obtained from focus groups (n = 20) and informant interviews (n = 4) with local psychiatrists supported the cultural validity of complicated bereavement. 16% (n = 78) of the sample met criteria for PCBD based on DSM-5 criteria and 103 (21%) met criteria for PGD based on ICD-11 criteria. Confirmatory factor analysis yielded a six-factor model of complicated bereavement with a moderately good fit to the data. The model included dimensions of anger/negative appraisal (AN), avoidance/giving up, estrangement from others, and confusion and diminished identity. In contrast, the DSM-5 three-factor model and the ICD-11 two-factor model each yielded a poor fit. Cumulative traumatic losses (β = 0.16, P = 0.03), duration since displacement [(β = 0.10, P = 0.02)] and postmigration living difficulties (β = 0.20, P = 0.01) were associated with an aggregated index of complicated bereavement, supporting the concurrent validity of the structur

A major challenge in the refugee field is to ensure that scarce mental health resources are directed to those in greatest need. Based on data from an epidemiological survey of 959 adult Rohingya refugees in Malaysia (response rate: 83%), we examine whether a brief screening instrument of functional impairment, the WHO Disability Assessment Schedule (WHODAS), prove useful as a proxy measure to identify refugees who typically attend community mental health services. Based on estimates of mental disorder requiring interventions from analyses of epidemiological studies conducted worldwide, we selected a WHODAS cutoff that identified the top one-fifth of refugees according to severity of functional impairment, the remainder being distributed to moderate and lower impairment groupings, respectively. Compared to the lower impairment grouping, the severe impairment category comprised more boat arrivals (AOR: 5.96 [95% CI 1.34–26.43); stateless persons (A20·11 [95% CI 7.14–10); those with high exposure to pre-migration traumas (AOR: 4.76 [95% CI 1.64–13.73), peri-migration stressors (AOR: 1.26 [95% CI 1.14–1.39]) and postmigration living difficulties (AOR: 1.43 [95% CI 1.32–1.55); persons with single (AOR: 7.48 [95% CI 4.25–13.17]) and comorbid (AOR: 13.54 [95% CI 6.22–29.45]) common mental disorders; and those reporting poorer general health (AOR: 2.23 [95% CI 1–5.02]). In addition, half of the severe impairment grouping (50.6%) expressed suicidal ideas compared to one in six (16.2 percent) of the lower impairment grouping (OR: 2.39 [95% CI 1.94–2.93]). Differences between the severe and moderate impairment groups were similar but less extreme. In settings where large-scale epidemiological studies are not feasible, the WHODAS may serve as readily administered and brief public health screening tool that assists in stratifying the population according to urgency of mental health needs.

Objectives: We report the testing and refinement of the Adaptive Stress Index (ASI), a psychosocial assessment tool designed to measure the longer terms stressors of adapting to the psychosocial disruptions experienced by refugees. Methods: The ASI is based on a theoretical model, the Adaptation and Development After Persecution and Trauma (ADAPT), which postulates that five psychosocial domains are disrupted by conflict and displacement, namely, safety and security, attachment, access to justice, roles and identities, and existential meaning. We used confirmatory factor analysis (CFA) and item response theory (IRT) to shorten and refine the measure based on data obtained from 487 refugees participating in a household survey in Papua New Guinea (response rate: 85.8%). Results: CFA allowed the exclusion of low loading items (<0.5) and locally dependent items. A good fit was found for single models representing each of the five ASI domains. A graded response IRT model identified items with the highest discrimination and information content in each of the five derived scales. Conclusions: The analysis produced a shortened and refined ASI for use amongst refugee populations. The study offers a guide to adapting measures of stress for application to diverse populations exposed to mass conflict and refugee displacement.

The risk of posttraumatic stress disorder (PTSD) following trauma is heritable, but robust common variants have yet to be identified. In a multi-ethnic cohort including over 30,000 PTSD cases and 170,000 controls we conduct a genome-wide association study of PTSD. We demonstrate SNP-based heritability estimates of 5-20%, varying by sex. Three genome-wide significant loci are identified, 2 in European and 1 in African-ancestry analyses. Analyses stratified by sex implicate 3 additional loci in men. Along with other novel genes and non-coding RNAs, a Parkinson's disease gene involved in dopamine regulation, PARK2, is associated with PTSD. Finally, we demonstrate that polygenic risk for PTSD is significantly predictive of re-experiencing symptoms in the Million Veteran Program dataset, although specific loci did not replicate. These results demonstrate the role of genetic variation in the biology of risk for PTSD and highlight the necessity of conducting sex-stratified analyses and expanding GWAS beyond European ancestry populations.

AIMS: Despite the frequency that refugees suffer bereavement, there is a dearth of research into the prevalence and predictors of problematic grief reactions in refugees. To address this gap, this study reports a nationally representative population-based study of refugees to determine the prevalence of probable prolonged grief disorder (PGD) and its associated problems. METHODS: This study recruited participants from the Building a New Life in Australia (BNLA) prospective cohort study of refugees admitted to Australia between October 2013 and February 2014. The current data were collected in 2015-2016, and comprised 1767 adults, as well as 411 children of the adult respondents. Adult refugees were assessed for trauma history, post-migration difficulties, probable PGD, post-traumatic stress disorder (PTSD) and mental illness. Children were administered the Strengths and Difficulties Questionnaire. RESULTS: In this cohort, 38.1% of refugees reported bereavement, of whom 15.8% reported probable PGD; this represents 6.0% of the entire cohort. Probable PGD was associated with a greater likelihood of mental illness, probable PTSD, severe mental illness, currently unemployed and reported disability. Children of refugees with probable PGD reported more psychological difficulties than those whose parents did not have probable PGD. Probable PGD was also associated with the history of imprisonment, torture and separation from family. Only 56.3% of refugees with probable PGD had received psychological assistance. CONCLUSIONS: Bereavement and probable PGD appear highly prevalent in refugees, and PGD seems to be associated with disability in the refugees and psychological problems in their children. The low rate of access to mental health assistance for these refugees highlights that there is a need to address this issue in refugee populations.

OBJECTIVE: The number of refugees worldwide is unprecedented in recent history. Little is known, however, about profiles of psychological symptoms following persecution and displacement. METHODS: This study reports on a latent class analysis that identified profiles of posttraumatic stress disorder (PTSD), depression and anxiety symptoms in a nationally representative sample of 1625 refugees in Australia. The association between specific symptom profiles, exposure to potentially traumatic events and post-migration stressors, and overall health and help-seeking was examined. RESULTS: Latent class analysis yielded an optimal five-class solution. These classes comprised the Pervasive Symptom class (19.2%), the High PTSD Symptom class (17.1%), the High Depression/Anxiety Symptom class (16.4%), the Moderate PTSD Symptom class (16.2%) and the Low Symptom class (31.1%). Participants in the symptomatic classes were more likely to be female, older and report greater post-migration stressors than those in the Low Symptom class. In addition, individuals in classes characterized by PTSD symptoms had been exposed to more types of potentially traumatic events. Membership in symptomatic classes was associated with poorer overall heath and greater help-seeking. CONCLUSION: Qualitatively distinct symptom profiles were observed in a nationally representative sample of refugees. In addition to a group of people who reported high symptoms across psychological disorders and may warrant clinical intervention, we identified two subclinical classes who may be missed by existing diagnostic classification systems. Post-migration stressors play an important role in influencing refugee symptom profiles over and above exposure to potentially traumatic events. Clinicians should consider specific symptom profiles and contextual factors when planning interventions with refugees.

Trauma-affected refugees commonly experience postmigration stressors, which can compound conflict-related emotional distress. Our study aimed to assess clinician-rated frequency and types of postmigration stressors deemed to be interfering with the treatment of refugees attending a service for trauma-related mental distress. A total of 116 patients completed 6 months of multidisciplinary treatment. Clinician-rated postmigration stressors were registered at each session. Outcome measures were Harvard Trauma Questionnaire and Global Assessment of Functioning, function (GAF-F) and symptom. Postmigration stressors were deemed to impact on 39.1% of treatment sessions with medical personnel. Issues related to work, finances, and family were the most frequently identified stressors. Postmigration stressors interfering with treatment were more common among male refugees, those living alone, those from Middle Eastern origin, and persons with low baseline GAF-F. Explicitly identifying and, where possible, dealing with postmigration stressors may assist in averting their interference with the treatment of distress in refugees.

[This corrects the article DOI: 10.1017/gmh.2018.16.].

Background: A key issue in need of empirical exploration in the post-conflict and refugee mental health field is whether exposure to torture plays a role in generating risk of intimate partner violence (IPV), and whether this pathway is mediated by the mental health effects of torture-related trauma. In examining this question, it is important to assess the impact of socio-economic hardship which may be greater amongst survivors of torture in low-income countries. Methods: The study data were obtained from a cohort of 870 women (recruited from antenatal clinics) and their male partners in Dili district, Timor-Leste. We conducted bivariate and path analysis to test for associations of men's age, socioeconomic status, torture exposure, and mental disturbance, with IPV (the latter reported by women). Results: The path analysis indicated positive paths from a younger age, torture exposure, and lower socio-economic status amongst men leading to mental disturbance. Mental disturbance, in turn, led to IPV. In addition, younger age, lower socio-economic status, torture exposure, and mental disturbance were directly associated with IPV. Conclusions: Our data provide the first systematic evidence of an association between torture and IPV in a low-income, post-conflict country, confirming that low socio-economic status, partly related to being a torture survivor, adds to the risk. The high prevalence of IPV in this context suggests that other structural factors, such as persisting patriarchal attitudes, contribute to the risk of IPV. Early detection and prevention programs may assist in reducing the risk of IPV in families in which men have experienced torture.

Background: High-income countries like Australia play a vital role in resettling refugees from around the world, half of whom are children and adolescents. Informed by an ecological framework, this study examined the post-migration adjustment of refugee children and adolescents 2-3 years after arrival to Australia. We aimed to estimate the overall rate of adjustment among young refugees and explore associations with adjustment and factors across individual, family, school, and community domains, using a large and broadly representative sample. Method(s): Data were drawn from Wave 3 of the Building a New Life in Australia (BNLA) study, a nationally representative, longitudinal study of settlement among humanitarian migrants in Australia. Caregivers of refugee children aged 5-17 (N = 694 children and adolescents) were interviewed about their children's physical health and activity, school absenteeism and achievement, family structure and parenting style, and community and neighbourhood environment. Parent and child forms of the Strengths and Difficulties Questionnaire (SDQ) were completed by caregivers and older children to assess social and emotional adjustment. Result(s): Sound adjustment according to the SDQ was observed regularly among young refugees, with 76-94% (across gender and age) falling within normative ranges. Comparison with community data for young people showed that young refugees had comparable or higher adjustment levels than generally seen in the community. However, young refugees as a group did report greater peer difficulties. Bivariate and multivariate linear regression analyses showed that better reported physical health and school achievement were associated with higher adjustment. Furthermore, higher school absenteeism and endorsement of a hostile parenting style were associated with lower adjustment. Conclusion(s): This is the first study to report on child psychosocial outcomes from the large, representative longitudinal BNLA study. Our find

There are more displaced people around the world than ever before, and over half are children. Australia and other wealthy nations have implemented increasingly harsh policies, justified as 'humane deterrence', and aimed at preventing asylum seekers (persons without preestablished resettlement visas) from entering their borders and gaining protection. Australian psychiatrists and other health professionals have documented the impact of these harsh policies since their inception. Their experience in identifying and challenging the effects of these policies on the mental health of asylum seekers may prove instructive to others facing similar issues. In outlining the Australian experience, we draw selectively on personal experience, research, witness account issues, reports by human rights organisations, clinical observations and commentaries. Australia's harsh response to asylum seekers, including indefinite mandatory detention and denial of permanent protection for those found to be refugees, starkly demonstrates the ineluctable intersection of mental health, human rights, ethics and social policy, a complexity that the profession is uniquely positioned to understand and hence reflect back to government and the wider society.

Objectives: The intention to include a category of Complex Posttraumatic Stress Disorder (CPTSD) in ICD-11 has renewed interest in this construct. Although growing evidence from high income countries supports the construct validity of CPTSD, little parallel research has been undertaken across cultures. We tested theoretically supported CPTSD structures (a one-factor, six-factor, one-factor higher-order, and two-factor higher order structure) in a community sample of West Papuan refugees living in a remote town, Kiunga, in Papua New Guinea (PNG). Procedures: A community-wide survey was conducted (2016–2017; response rate 85.5%) amongst 486 West Papuans. Culturally adapted measures were applied to assess cumulative traumatic exposure, postmigration living difficulties (PMLDs), CPTSD symptoms, and functional impairment. Findings: A six factor structure for CPTSD provided the best fit to the data, consistent with our past study amongst West Papuans. Conclusions: The cross-cultural validity of our findings is supported by the isolation of West Papuan participants from services treating traumatic stress. To further support the universal applicability of CPTSD, our findings need to be confirmed amongst other refugee groups from diverse cultural backgrounds.