Asylum seekers' and Refugees' Changing Health (ARCH) study protocol: an observational study in Lebanon and Denmark to assess health implications of long-distance migration on communicable and non-communicable diseases and mental health.

INTRODUCTION: By end of 2018, the European Union countries hosted approximately 2.5 million refugees and Lebanon alone hosted more than 1 million. The majority of refugees worldwide came from Syria. The prevailing study design in published studies on asylum seekers' and refugees' health leaves a number of fundamental research questions unanswerable. In the Asylum seekers' and Refugees' Changing Health (ARCH) study, we examine the health of a homogeneous group of refugees and asylum seekers in two very different host countries with very different migration histories. We aim to study the health impact of the migration process, living conditions, access to healthcare, gene-environment interactions and the health transition. METHODS AND ANALYSIS: ARCH is an international multisite study of the health of adult (>18 years old) Syrian refugees and asylum seekers in Lebanon and Denmark. Using a standardised framework, we collect information on mental and physical health using validated scales and biological samples. We aim to include 220 participants in Danish asylum centres and 1100 participants in Lebanese refugee camps and settlements. We will use propensity score weights to control for confounding and multiple imputation to handle missing data. ETHICS AND DISSEMINATION: Ethical approval has been obtained in Lebanon and Denmark. In the short term, we will present the cross-sectional association between long-distance migration and the results of the throat and wound swab, blood and faeces samples and mental health screenings. In the longer term, we are planning to follow the refugees in Denmark with collection of dried blood spots, mental health screenings and semistructured qualitative interviews on the participant's health and access to healthcare in the time lived in Denmark. Here, we present an overview of the background for the ARCH study as well as a thorough description of the methodology.

Comparison of psychiatric disability on the health of nation outcome scales (HoNOS) in resettled traumatized refugee outpatients and Danish inpatients.

BACKGROUND: Currently, the mental health issues of traumatized refugees are mainly documented in terms of posttraumatic stress disorder, depression, and anxiety. Importantly, there are no reports of the level of psychiatric disability in treatment seeking traumatized refugees resettled in the West. Insufficient acknowledgment of the collective load of bio-psycho-social problems in this patient group hinders effective psychiatric and social service utilization outside the specialized clinics for traumatized refugees. METHODS: The level of psychiatric disability in traumatized refugees from Danish specialized clinics (N = 448) is documented using routine monitoring data from pre- and post-treatment on the Health of Nation Outcome Scales (HoNOS). Furthermore, the HoNOS ratings are compared with routine monitoring data from Danish inpatients with different diagnoses (N = 10.911). RESULTS: The routinely collected data indicated that despite their outpatient status, traumatized refugees had higher levels of psychiatric disability at pre-treatment compared to most inpatients. Moreover, the traumatized refugees had a HoNOS profile characterized by an overall high problem level in various psychiatric and social domains. The rate of pre- to post-treatment improvement on the HoNOS was smaller for the traumatized refugees than it was for the psychiatric inpatients. CONCLUSIONS: The level, and the versatile profile, of psychiatric disability on the HoNOS point to complex bio-psycho-social problems in resettled treatment seeking traumatized refugees. Thus, a broader assessment of symptoms and better cooperation between psychiatric, health care, and social systems is necessary in order to meet the treatment needs of this group.