Objective: Evaluating evidence involving the assurance of health rights for refugee population throughout the world by systematic revision with metanalysis. Data Source: the following database was used: MEDLINE, accessed via Virtual Health Library (BVS), and SCOPUS. In order to make more assured and straightforward research, the authors chose to unify all the descriptors (MeSH) using the operator AND on the following form: (Refugees AND Right to health AND Human Rights). Study Selection: The primary selection occur through triage of titles and abstracts followed by eligibility criteria based on full reading of the articles selected under previously stablished inclusion criteria. Data Extraction: Some of the information were extracted from studies enclosing author, year, type of participants and its respective numbers, type of intervention, number of sessions or time of follow-up, and outcomes. Results: The research strategies resulted in 201 articles. Considering inclusion and exclusion criteria, 10 studies were included in the sample (N). The metanalysis make possible to assess the failure of the effective policy towards the refugee population´s welfare, thus there is an effective close proximity with the absence line, I^2 (variation in ES attributable to heterogeneity) = 98.32%; Estimate of between-study variance Tau^2 = 0.04; Test of ES=0: z = 1.08 p = 0.00. Conclusion: The lack of access to information, the language and cultural issues, and the oddness/estrangement over the hosting country are major factors contributing for the refugee´s health precariousness in making it difficult in its access. The report “Global Trends” of the United Nations High Commissioner for Refugees (UNHCR) indicate that such difficulties in the health access may be related to the level of social-economic development of the hosting countries. There are plenty of difficulties on the accessing health services, among then the lack of official documentation and information. Objective: Evaluating evidence involving the assurance of health rights for refugee population throughout the world by systematic revision with metanalysis. Data Source: the following database was used: MEDLINE, accessed via Virtual Health Library (BVS), and SCOPUS. In order to make more assured and straightforward research, the authors chose to unify all the descriptors (MeSH) using the operator AND on the following form: (Refugees AND Right to health AND Human Rights). Study Selection: The primary selection occur through triage of titles and abstracts followed by eligibility criteria based on full reading of the articles selected under previously stablished inclusion criteria. Data Extraction: Some of the information were extracted from studies enclosing author, year, type of participants and its respective numbers, type of intervention, number of sessions or time of follow-up, and outcomes. Results: The research strategies resulted in 201 articles. Considering inclusion and exclusion criteria, 10 studies were included in the sample (N). The metanalysis make possible to assess the failure of the effective policy towards the refugee population´s welfare, thus there is an effective close proximity with the absence line, I^2 (variation in ES attributable to heterogeneity) = 98.32%; Estimate of between-study variance Tau^2 = 0.04; Test of ES=0: z = 1.08 p = 0.00. Conclusion: The lack of access to information, the language and cultural issues, and the oddness/estrangement over the hosting country are major factors contributing for the refugee´s health precariousness in making it difficult in its access. The report “Global Trends” of the United Nations High Commissioner for Refugees (UNHCR) indicate that such difficulties in the health access may be related to the level of social-economic development of the hosting countries. There are plenty of difficulties on the accessing health services, among then the lack of official documentation and information.

Background Current studies underline and enable the international scientific community to reflect on migrant needs to restart, mostly without fluency in the language from the country of destination, without a way of proving his/her knowledges and abilities, with an incomplete family core, without cultural references that until that moment defined him/her as belonging to a specific group, with defined and meaningful habits, full of symbolic representations. Iams Conduct an analysis on the implications of migration in refugees’ mental health, and the link between these implications and Post-traumatic Stress Disorder (PTSD). Method Indexed journals in MEDLINE and LILACS databases hosted in Biblioteca Virtual em Saúde (BVS), as well as papers hosted in Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Periodicals Portal. Searches were carried using the following DeCS descriptors: “Stress Disorders, Post-Traumatic”, "Refugees” e “Mental Health”. Results The 10 studies included in the present review were carried in Australia, Denmark, Ethiopia, Turkey, Uganda, Israel, South Korea and Papua New Guinea, and were published in 2014 (2), 2015 (6), and 2017 (2). Regarding the subject, 50% of the articles concentrate information regarding PTSD and mental health problems, while the remaining half deals with psychosocial effects of mass conflict on refugees. Meta-analysis concludes that a considerable percentage of refugees suffer from psychiatric disorder, I-squared (variation in ES attributable to heterogeneity) = 96,46%; Estimate of between-study variance Tau^2= 0.02. Test of ES=0 : z= 17.75 p= 0.00. Conclusion Exposure to traumatic events such as public executions and other extreme acts of violence, murder of family members, family and friends’ death due to starvation, homelessness, are closely related to PTSD prevalence in refugees. Acculturation and family’s prolonged estrangement are predictors of depressive symptoms in refugees and both exposure to a new culture and adaptation to new laws and norms of welcoming countries act as stressors and aggravators of depressive symptoms.