Pharmacological treatment of refugees with trauma-related disorders: What do we know today?

Psychological Interventions for PTSD, Depression, and Anxiety in Child, Adolescent and Adult Forced Migrants: A Systematic Review and Frequentist and Bayesian Meta-Analyses

OBJECTIVE

The number of forced migrants has been rising for years. Many forced migrants suffer from post-traumatic stress disorder (PTSD), depression, and/or anxiety and need treatment. Here, we evaluate the effectiveness of psychological interventions (CBT, EMDR, expressive/art, mindfulness, mixed elements, NET and psychoeducation) in reducing symptoms of PTSD, depression, and anxiety in forced migrants.

DESIGN AND DATA SOURCES

Systematic searches in PubMed and Web of Science and searches of preprint servers and grey literature were performed (final search date: 1 September 2023). Random-effects frequentist and Bayesian meta-analyses were used for data synthesis.

RESULTS

We included 84 studies on treatment effects in adults (pooled N = 6302) and 32 on children and adolescents (pooled N = 1097). Our data show a reduction in symptoms of PTSD, depression and anxiety symptoms in both adults and child/adolescent forced migrants. Pooled pre- to post-treatment effects (effect size Cohen's d) ranged from -1.03 to -0.26 for PTSD, from -0.91 to -0.11 for depression and from -0.91 to -0.60 for anxiety, without there being differences in outcome per study design (i.e., RCT comparison vs. non-RCT comparison vs. single arm treatment study). Treatment effects remained evident over follow-up, and not a single type of treatment stood out as being superior to other treatment types. Structural differences in populations (e.g., regarding country of origin) over studies, however, could have hampered the validity of the comparisons between study characteristics such as treatment type.

CONCLUSION

Our findings support the effectiveness of psychological treatment in adult and child/adolescent forced migrants.

Sertraline versus venlafaxine combined with psychotherapy in trauma-affected refugees - a follow-up study on a pragmatic randomised trial

BACKGROUND

Research on long-term pharmacotherapy for trauma-affected refugees is scarce. The purpose of this follow-up study of a randomised trial was to investigate the effects of sertraline compared to venlafaxine in combination with psychotherapy, 6 and 18 months after end of trial.

METHOD

The primary outcome was PTSD symptoms, measured by the Harvard Trauma Questionnaire (HTQ). The secondary outcomes included: Hopkins Symptom Checklist-25 (HSCL-25), somatisation items of the Symptoms Checklist-90 (SCL), pain on a visual analogue scale, well-being on the WHO-5, Sheehan Disability Scale, Hamilton Depression and Anxiety scales and Global Assessment of Functioning. Moreover, the shorter version of the Recent Life Events (IRLE) was adopted to obtain information regarding the patients' treatment and life events between the follow-up periods.

RESULTS

Out of 195 patients eligible for intention-to-treat analyses during trial, 116 participated in the 6-month follow-up and 97 participated in the 18-month follow-up. The results of our intention-to-treat analyses revealed no significant long-term differences between the groups on the primary outcome assessing PTSD symptoms (HTQ). For the secondary outcomes significant differences were found at the 18-month follow-up in favour of venlafaxine assessing symptoms of anxiety, depression and somatisation (HSCL-25 and SCL), although only in intention-to-treat and not per-protocol analyses.

CONCLUSIONS

No conclusions could be drawn due to conflicting results between our intention-to-treat and per-protocol analyses.

Association of medication clusters and subsequent labor market marginalization in refugee and Swedish-born young adults with common mental disorders in Sweden

Little is known about the association between common mental disorders (CMD) and labor market integration among refugee and Swedish-born young adults. Socially disadvantaged patients such as refugees are more likely to discontinue their medication use prematurely. This study aimed to identify clusters of individuals with similar psychotropic medication patterns; and examine the relationship between cluster membership with labor market marginalization (LMM) in refugee and Swedish-born young adults with CMD. The study uses a longitudinal matched cohort aged 18-24 years with CMD diagnoses from Swedish registers covering 2006-2016. Dispensed psychotropic medications (antidepressants, antipsychotics, anxiolytics, sedative-hypnotics, mood stabilizers) were collected one year before and after CMD diagnosis. Clusters of patients with similar time courses of prescribed dosages were algorithmically identified. The association of cluster membership with subsequent LMM, (long-term sickness absence, SA, disability pension, DP, or long-term unemployment, UE) was assessed using Cox regression. Among 12,472 young adults with CMD, there were 13.9% with SA, 11.9% with DP, and 13.0% with UE during a mean follow-up of 4.1 years (SD 2.3 years). Six clusters of individuals were identified. A cluster with a sustained increase in all medication types yielded the highest hazard ratio (HR [95% CI]) 1.69 [1.34, 2.13] for SA and 2.63 [2.05, 3.38] for DP. The highest HRs of UE give a cluster with a concentrated peak in antidepressants at CMD diagnosis (HR 1.61[1.18, 2.18]). Refugees and Swedish-born showed similar associations between clusters and LMM. To prevent LMM, targeted support and early assessment of CMD treatment are needed for individuals with a sustained increase in psychotropic medication after CMD diagnosis and for refugees in high-risk clusters for UE characterized by a rapid lowering of treatment dosages, which could be an indicator for premature medication discontinuation.

Exploring expectations of neurofeedback treatment among trauma-affected refugees

BACKGROUND

The use of Neurofeedback (NF) to assist individuals in learning to regulate their brain wave activity has shown promising results in reducing symptoms of posttraumatic stress disorder (PSTD). However, few studies have focused on the patients' understandings of NF and even fewer explore the perspective of refugees.

PURPOSE

To evaluate NF treatment for trauma-affected refugees by focusing on their expectations and understanding of NF.

METHODS

This qualitative study was a part of a mixed method study carried out at an outpatient mental health centre in Denmark, offering 34 trauma-affected refugees 12 sessions of NF. In this qualitative study, a subsample of seven participants was interviewed. Using in-depth semi-structured interviews, the participants' thoughts and expectations prior to participating in NF treatment were examined. The analysis was carried out in four steps, using a hermeneutic and phenomenological approach.

RESULTS

The analysis resulted in two themes: (1) Rationale and working mechanisms of NF and (2) Motivators for participating in the study.

CONCLUSION

The findings show that NF treatment for trauma affected refugees was challenged by difficulties in communicating the message about the NF equipment capabilities as well as the expected treatment outcome. These challenges included e.g. health professionals' ability to explain and the participants' cultural frame of reference. This is consistent with previous research, showing that compared to the native population, the dissemination of health information to refugees is more difficult and comprehensive. Further studies on how to ensure mutual understanding of the content of NF and expected treatment outcome are needed.

TRIAL REGISTRATION

ClinicalTrials.gov ID: NCT05055037. Retrospectively registered on the 06/07-2021.

Sleep impairments in refugees diagnosed with post-traumatic stress disorder: a polysomnographic and self-report study

Background: Post-traumatic stress disorder (PTSD) is the clinical manifestation of traumatic events and is associated with sleep disturbances. Sleep disturbances, if left untreated, may perpetuate or even worsen symptoms of PTSD. Previous studies of other PTSD populations show a higher incidence of sleep impairments and sleep disorders compared to healthy controls (HCs); however, this has never been investigated in trauma-affected refugees diagnosed with PTSD.Objectives: To examine subjective sleep quality, measure sleep architecture, and identify latent sleep disorders in refugees diagnosed with PTSD compared to HCs.Method: This comparative study included 20 trauma-affected refugees diagnosed with PTSD and 20 HC matched on age, sex, and body mass index. All participants completed self-report questionnaires assessing sleep quality, insomnia severity, and disturbing nocturnal behaviour, and all took part in a one-night polysomnography (PSG) assessment.Results: Patients reported significantly poorer subjective sleep quality, sleep latency, sleep duration, and sleep efficiency compared to HCs. Subjective reports on hours spent in bed were not significantly different between patients and HCs. Patients reported significantly higher nightmare frequency and severity compared to HCs. PSG measures showed that patients had significantly reduced sleep efficiency, more awakenings, and longer REM sleep latency, and spent more time awake, whereas there was no significant differences regarding total time in bed, total sleep time, or sleep latency. The prevalence of sleep disorders was equal between groups.Conclusions: The study identified significant impairments in several sleep domains, with a preponderance of disturbed regulation of sleep resulting in awakenings. These results indicate a need for more focus on hyperarousal and nightmares as key elements of disturbed sleep in PTSD. Furthermore, the study identified a discrepancy between subjective and objective measures concerning total sleep time, raising questions regarding the causes of 'sleep state misperception'.Trial registration: ClinicalTrials.gov identifier: NCT03535636..Trial registration: Sleep Impairments in Refugees Diagnosed with PTSD (PSG-PTSD). URL: https://clinicaltrials.gov/ct2/show/NCT03535636. ClinicalTrials.gov NCT03535636. Date of registration: 24/05/2018.

Call to action: Addressing sleep disturbances, a hallmark symptom of PTSD, for refugees, asylum seekers, and internally displaced persons

Sleep difficulty is a recognized hallmark symptom of post-traumatic stress disorder (PTSD) yet often remains an enduring and neglected problem post-treatment. Around 4.4%- 88.0% of refugees, asylum seekers, and internally displaced persons report PTSD, of which 39%- 99% report sleep difficulties. These percentages substantially exceed those of the general population. Yet there has been a lack of research examining evidence-based stand-alone and add-on treatments for PTSD and related sleep disturbances among this population. Barriers to treatment encountered by this population often vary by their legal status or location, but generally include lack of access due to insufficient evidence-based treatments or mental health practitioner shortages, lack of psychoeducation on mental health, cultural stigma, language barriers, situational instability, and racial bias. The refugee population has been on the rise over the past 10 years, and the United Nations estimated the recent Ukraine-Russia conflict would lead to an additional 12 million people needing humanitarian assistance inside Ukraine and more than 6.9 million refugees fleeing to neighboring countries in the coming months. Given that refugees, asylum seekers, and internally displaced persons repeatedly encounter barriers to mental health care specific to their predicament, interventions designed to accommodate their situation are imperative for improving their sleep and mental health. We therefore call for there to be more research on integrative programs incorporating evidence-based treatments that allow for scalability, adaptability, and rapid dissemination to maximize impact in this population. Further, we encourage trainings among clinicians and researchers to increase knowledge and confidence in working with this population.

AN ANXIETY AS A RESPONSE TO DISTRESS AND AS A SYMPTOM OF STRESS DISORDERS IN WARTIME

OBJECTIVE

The aim: A comprehensive analysis of anxiety as an emotional state and pathopsychological symptom in the situation of a massive humanitarian catastrophe in wartime.

PATIENTS AND METHODS

Materials and methods: A systematic search was conducted up to April 2022 in the following databases: Google Scholar, PubMed, DOAJ, and CORE. Three reviewers independently assessed full-text articles according to a predefined aim. We used a quantitative and qualitative approach to infer. The range of mental reactions to the intensive stress with a pooled prevalence of anxiety was estimated. Anxiety as an independent structural psychological phenomenon or incorporated into more complicated mental states, including mental disorders, was assessed.

CONCLUSION

Conclusions: The anxiety features as an expected mental reaction to the threatening environment are established, the analysis of anxiety development trajectories was shown, and the basic principles of psychological care in anxiety states are considered. The criteria of pathological anxiety, the characteristic of the anxiety symptom as a structural element of psychiatric diseases, and the modern methods of treatment of anxiety disorders are presented. Many specialists in the different areas work with anxious people and patients with anxiety disorders in the Ukrainian current situation, so it was concluded that understanding and being aware of the differentiation of anxiety states will improve psychological care and, if necessary, will lead to providing of a full spectrum of specialized medical care.

Chronic pain and mental health problems among Syrian refugees: associations, predictors and use of medication over time: a prospective cohort study

OBJECTIVES

This study aims to examine associations, predictors and pharmacological treatment of chronic pain and mental health problems among Syrian refugees in a longitudinal perspective.

DESIGN

Prospective cohort study.

SETTING

We collected survey data among Syrian refugees in Lebanon granted resettlement to Norway (self-administered questionnaires) and at follow-up 1 year after arrival in Norway (structured telephone interviews).

PARTICIPANTS

Adult Syrian refugees attending mandatory pretravel courses in Lebanon in 2017-2018 were invited to participate. In total, 353 individuals participated at both time points.

PRIMARY AND SECONDARY OUTCOMES

We examined the cross-sectional associations between pain, mental health and migration-related exposures at baseline and follow-up and assessed whether associations changed significantly with time. Furthermore, we investigated the longitudinal association between mental health at baseline and pain at follow-up. We also evaluated temporal changes in use of analgesics and psychotropic drugs.

RESULTS

While most refugees reported improved health from the transit phase in Lebanon to the early resettlement phase in Norway, a few had persisting and intertwined health problems. Most migration-related stressors were more closely associated with chronic pain and mental health problems after resettlement as compared with the transit phase. In parallel, poor mental health was associated with chronic pain in the follow-up (adjusted risk ratio (ARR) 1.5 (1.0, 2.2)), but not at baseline (ARR 1.1 (0.8, 1.5)). Poor mental health at baseline was a statistically significant predictor of chronic pain at follow-up among those not reporting chronic pain at baseline. At both timepoints, one in four of those with chronic pain used analgesics regularly. None with mental health problems used antidepressants daily.

CONCLUSIONS

Providers of healthcare services to refugees should be attentive to the adverse effect of postmigration stressors and acknowledge the interrelations between pain and mental health. Possible gaps in pharmacological treatment of pain and mental health problems need further clarification.

A Walk-In Clinic for Newly Arrived Mentally Burdened Refugees: The Patient Perspective

Providing refugees with psychosocial support is particularly important considering the high level of mental health problems prevalent in this population. A psychosocial walk-in clinic operating within a state reception and registration center in Germany has been supporting mentally burdened refugees since 2016. This study focused on patients' perspectives on their mental health burden, the psychosocial walk-in clinic, and future help seeking. We conducted interviews with n = 22 refugees attending the walk-in clinic from March to May 2019. Qualitative analysis focused on the following four topics: (1) mental burden from the patients' perspective, (2) access to the psychosocial walk-in clinic, (3) perception of counseling sessions, and (4) perception of follow-up treatment. The results show that the majority of interviewees were burdened by psychological and somatic complaints, mostly attributed to past experiences and post-migratory stress. Therapeutic counseling and psychiatric medication were found to be particularly helpful. Most of the participants felt motivated to seek further psychosocial support. Key barriers to seeking psychosocial help included shame, fear of stigma, and lack of information. Overall, the psychosocial walk-in clinic is a highly valued support service for newly arrived refugees with mental health issues.

An overview of systematic reviews on mental health promotion, prevention, and treatment of common mental disorders for refugees, asylum seekers, and internally displaced persons

BACKGROUND

Migrants who have been forced to leave their home, such as refugees, asylum seekers, and internally displaced persons (IDP), are likely to experience stressors which may lead to mental health problems. The efficacy of interventions for mental health promotion, prevention, and treatment may differ in this population.

OBJECTIVES

With this overview of systematic reviews, we will map the characteristics and methodological quality of existing systematic reviews and registered systematic review protocols on the promotion of mental health and prevention and treatment of common mental disorders among refugees, asylum seekers, and IDPs. The findings from this overview will be used to prioritise and inform future Cochrane reviews on the mental health of involuntary migrants.

METHODS

We searched Ovid MEDLINE (1945 onwards), Ovid Embase (1974 onwards), Ovid PsycINFO, ProQuest PTSDpubs, Web of Science Core Collection, Cochrane Database of Systematic Reviews, NIHR Journals Library, CRD databases (archived), DoPHER, Epistemonikos, Health Evidence, 3ie International Initiative for Impact Evaluation, and PROSPERO, to identify systematic reviews of mental health interventions for involuntary migrants. We did not apply any restrictions on date, language, or publication status to the searches. We included systematic reviews or protocols for systematic reviews of interventions aimed at refugees, asylum seekers, and internally displaced persons. Interventions must have been aimed at mental health promotion (for example, classroom-based well-being interventions for children), prevention of mental health problems (for example, trauma-focussed Cognitive Behavioural Therapy to prevent post-traumatic stress disorder), or treatment of common mental disorders and symptoms (for example, narrative exposure therapy to treat symptoms of trauma). After screening abstracts and full-text manuscripts in duplicate, we extracted data on the characteristics of the reviews, the interventions examined in reviews, and the number of primary studies included in each review. Methodological quality of the included systematic reviews was assessed using AMSTAR 2.

MAIN RESULTS

The overview includes 23 systematic reviews and 15 registered systematic review protocols. Of the 23 published systematic reviews, meta-analyses were conducted in eight reviews. It was more common for the search strategy or inclusion criteria of the reviews to state that studies involving refugees were eligible for inclusion (23/23), than for asylum seekers (14/23) or IDPs (7/23) to be explicitly mentioned. In most reviews, study eligiblity was either not restricted by participant age (9/23), or restricted to adults (10/23). Reviews commonly reported on studies of diagnosis or symptoms of post-traumatic stress disorder or trauma (11/23) and were less likely to report on depression or anxiety (6/23). In 15 reviews the intervention of interest was focused on/ specific to psychological therapy. Across all 23 reviews, the interventions most commonly identified from primary studies were general Cognitive Behavioural Therapy, Narrative Exposure Therapy, and a range of different integrative and interpersonal therapies. Even though many reviews included studies of participants without a diagnosis of a mental health problem, they often assessed mental health treatments and did not usually distinguish between promotion, prevention, and treatment in the review aims. Together the 23 systematic reviews included 336 references, of which 175 were unique primary studies. Limitations to the methodological quality of reviews most commonly related to reporting of selection criteria (21/23), absence of a protocol (19/23), reporting of study design (20/23), search strategy (22/23), and funding sources of primary studies (19/23).

AUTHORS' CONCLUSIONS

Gaps exist in the evidence on mental health interventions for refugees, asylum seekers, and internally displaced persons. Most reviews do not specify that internally displaced persons are included in the selection criteria, even though they make up the majority of involuntary migrants worldwide. Reviews specific to mental health promotion and prevention of common mental disorders are missing, and there is more evidence available for adults or mixed populations than for children. The literature is focused on post-traumatic stress disorder and trauma-related symptoms, with less attention for depression and anxiety disorders. Better quality systematic reviews and better report of review design and methods would help those who may use these reviews to inform implementation of mental health interventions.

Improving the mental wellbeing of Arabic speaking refugees: an evaluation of a mental health promotion program

BACKGROUND

Refugee populations have particularly high rates of mental health problems, including Posttraumatic Stress Disorder (PTSD) and depression. However, uptake of mental health care may be low even when severe depression and PTSD symptoms are present in individuals following resettlement. This is likely due, at least in part, to cultural influences on refugees' knowledge and beliefs about mental health problems and their treatment. We sought to provide preliminary evidence for the effectiveness of a culturally tailored mental health promotion program for Arabic-speaking refugees.

METHODS

A total of 33 Arabic-speaking refugees resettled in South Western Sydney were recruited and completed intervention which consisted of weekly three-hour sessions for 4 weeks delivered in Arabic. Key aspects of mental health literacy, help-seeking intentions and levels of general psychological distress were assessed, by means of a self-report survey, pre-intervention, (immediately) post-intervention and 3 months following intervention.

RESULTS

Of the 33 participants that completed the intervention, 31 completed the immediate post-intervention survey and 29 completed the 3 months follow-up survey. Improvements in most aspects of mental health literacy assessed were found immediately post-intervention and at follow-up, although only changes relating to stigmatising attitudes were statistically significant. Additionally, a statistically significant decrease in participants' levels of general psychological distress was observed immediately following the intervention, and this decrease was sustained at follow-up.

CONCLUSION

While further research employing a more rigorous study design and larger sample size will be needed, results of this initial trial suggest that a culturally tailored mental health promotion program targeting key aspects of mental health literacy can improve the mental health of Arabic-speaking refugees resettled in a Western nation.

Startle habituation, sensory, and sensorimotor gating in trauma-affected refugees with posttraumatic stress disorder

BACKGROUND

Impairments in mechanisms underlying early information processing have been reported in posttraumatic stress disorder (PTSD); however, findings in the existing literature are inconsistent. This current study capitalizes on technological advancements of research on electroencephalographic event-related potential and applies it to a novel PTSD population consisting of trauma-affected refugees.

METHODS

A total of 25 trauma-affected refugees with PTSD and 20 healthy refugee controls matched on age, gender, and country of origin completed the study. In two distinct auditory paradigms sensory gating, indexed as P50 suppression, and sensorimotor gating, indexed as prepulse inhibition (PPI), startle reactivity, and habituation of the eye-blink startle response were examined. Within the P50 paradigm, N100 and P200 amplitudes were also assessed. In addition, correlations between psychophysiological and clinical measures were investigated.

RESULTS

PTSD patients demonstrated significantly elevated stimuli responses across the two paradigms, reflected in both increased amplitude of the eye-blink startle response, and increased N100 and P200 amplitudes relative to healthy refugee controls. We found a trend toward reduced habituation in the patients, while the groups did not differ in PPI and P50 suppression. Among correlations, we found that eye-blink startle responses were associated with higher overall illness severity and lower levels of functioning.

CONCLUSIONS

Fundamental gating mechanisms appeared intact, while the pattern of deficits in trauma-affected refugees with PTSD point toward a different form of sensory overload, an overall neural hypersensitivity and disrupted the ability to down-regulate stimuli responses. This study represents an initial step toward elucidating sensory processing deficits in a PTSD subgroup.

Mental Health of Refugees and Asylum Seekers: Assessment and Intervention

With unprecedented numbers of displaced persons worldwide, mental health clinicians in high-income countries will increasingly encounter refugee and asylum-seeking patients, many of whom have experienced significant adversity before and after their migration. This paper presents a summary of the recent evidence on the assessment and treatment of refugees across the lifespan to inform clinicians' approaches to care of refugee patients in mental health care settings. Assessment and interventions for refugees are grounded in an ecosystemic approach which considers not only pre-migratory trauma, but social, familial, and cultural determinants of mental health in the host country. Evidence for psychotherapy and pharmacological treatments are reviewed, highlighting promising interventions while acknowledging that further research is needed. Ultimately, serving refugees necessitates a biopsychosocial approach that engages clinicians as medical experts, therapists, and advocates.

Treatment of sleep disturbances in trauma-affected refugees: Study protocol for a randomised controlled trial

BACKGROUND

Sleep disturbances are often referred to as a hallmark and as core symptoms of post-traumatic stress disorder (PTSD). Untreated sleep disturbances can contribute to the maintenance and exacerbation of PTSD symptoms, which may diminish treatment response and constitute a risk factor for poor treatment outcome. Controlled trials on treatment of sleep disturbances in refugees suffering from PTSD are scarce. The present study aims to examine sleep-enhancing treatment in refugees with PTSD. We aim to assess if add-on treatment with mianserin and/or Imagery Rehearsal Therapy (IRT) to treatment as usual (TAU) for PTSD improves sleep disturbances. We will study the relation between sleep disturbances, PTSD symptoms, psychosocial functioning and quality of life.

METHODS

The study is a randomised controlled superiority trial with a 2 × 2 factorial design. The study will include 230 trauma-affected refugees. The patients are randomised into four groups. All four groups receive TAU - an interdisciplinary treatment approach covering a period of 6-8 months with pharmacological treatment, physiotherapy, psychoeducation and manual-based cognitive behavioural therapy within a framework of weekly sessions with a physician, physiotherapist or psychologist. One group receives solely TAU, serving as a control group, while the three remaining groups are active-treatment groups receiving add-on treatment with either mianserin, IRT or a combination of both. Treatment outcome is evaluated using self-administered rating scales, observer ratings and actigraph measurements at baseline, during treatment and post treatment. The primary outcome is subjective sleep quality using the Pittsburgh Sleep Quality Index. Secondary outcome measures are objective sleep length, nightmares, PTSD severity, symptoms of depression and anxiety, pain, quality of life and psychosocial functioning.

DISCUSSION

This trial will be the first randomised controlled trial to examine sleep-enhancing treatment in trauma-affected refugees, as well as the first trial to investigate the effect of IRT and mianserin in this population. Therefore, this trial may optimise treatment recommendations for sleep disturbances in trauma-affected refugees. Based on our findings, we expect to discuss the effect of treatment, focussing on sleep disturbances. Furthermore, the results will provide new information regarding the association between sleep disturbances, PTSD symptoms, psychosocial functioning and quality of life in trauma-affected refugees.

TRIAL REGISTRATION

EudraCT registration under the name 'Treatment of sleep disturbances in trauma-affected refugees - a randomised controlled trial', registration number: 2015-004153-40 , registered on 13 November 2015. ClinicalTrials.gov, ID: NCT02761161. Registered on 27 April 2016.

Common mental disorders in asylum seekers and refugees: umbrella review of prevalence and intervention studies

BACKGROUND

In recent years there has been a progressive rise in the number of asylum seekers and refugees displaced from their country of origin, with significant social, economic, humanitarian and public health implications. In this population, up-to-date information on the rate and characteristics of mental health conditions, and on interventions that can be implemented once mental disorders have been identified, are needed. This umbrella review aims at systematically reviewing existing evidence on the prevalence of common mental disorders and on the efficacy of psychosocial and pharmacological interventions in adult and children asylum seekers and refugees resettled in low, middle and high income countries.

METHODS

We conducted an umbrella review of systematic reviews summarizing data on the prevalence of common mental disorders and on the efficacy of psychosocial and pharmacological interventions in asylum seekers and/or refugees. Methodological quality of the included studies was assessed with the AMSTAR checklist.

RESULTS

Thirteen reviews reported data on the prevalence of common mental disorders while fourteen reviews reported data on the efficacy of psychological or pharmacological interventions. Although there was substantial variability in prevalence rates, we found that depression and anxiety were at least as frequent as post-traumatic stress disorder, accounting for up to 40% of asylum seekers and refugees. In terms of psychosocial interventions, cognitive behavioral interventions, in particular narrative exposure therapy, were the most studied interventions with positive outcomes against inactive but not active comparators.

CONCLUSIONS

Current epidemiological data needs to be expanded with more rigorous studies focusing not only on post-traumatic stress disorder but also on depression, anxiety and other mental health conditions. In addition, new studies are urgently needed to assess the efficacy of psychosocial interventions when compared not only with no treatment but also each other. Despite current limitations, existing epidemiological and experimental data should be used to develop specific evidence-based guidelines, possibly by international independent organizations, such as the World Health Organization or the United Nations High Commission for Refugees. Guidelines should be applicable to different organizations of mental health care, including low and middle income countries as well as high income countries.