Determinants, Prevention, and Incidence of Cardiovascular Disease Among Immigrant and Refugee Populations.

Immigration policies shape the composition, socioeconomic characteristics, and health of migrant populations. The health of migrants is also influenced by a confluence of social, economic, environmental, and political factors. Immigrants and refugees often face various barriers to accessing health care because of factors such as lack of familiarity with navigating the health care system, language barriers, systemic racism, and gaps in health insurance. Social determinants of health and access to primary care health services likely influence the burden of cardiovascular risk factors among immigrants. The relatively low burden of many cardiovascular risk factors in many immigrant populations likely contributes to the generally lower incidence rates of acute myocardial infarction, heart failure, and stroke in immigrants compared with nonimmigrants, although cardiovascular disease incidence rates vary substantially by country of origin. The "healthy immigrant effect" is the hypothesis that immigrants to high-income countries, such as Canada, are healthier than nonimmigrants in the host population. However, this effect may not apply universally across all immigrants, including recent refugees, immigrants without formal education, and unmarried immigrants. As unfolding sociopolitical events generate new waves of global migration, policymakers and health care providers need to focus on addressing social and structural determinants of health to better manage cardiovascular risk factors and prevent cardiovascular disease, especially among the most marginalized immigrants and refugees.

Intestinal parasites in stool testing among refugees at a primary care clinic in Toronto, Canada.

BACKGROUND: Enteric parasites are endemic in many of the countries from which refugees originate. Clinical guidelines vary in approaches to screening for and treating intestinal parasites in refugee receiving countries. This study aims to investigate the prevalence and species of intestinal parasites identified in stool ova and parasite (O&P) specimens in a sample of newly arrived refugees in Toronto, Canada. METHODS: We conducted a retrospective chart review of 1042 refugee patients rostered at a specialized primary care clinic in Toronto from December 2011 to September 2016. Patients who completed recommended stool O&P analyses were included. Basic sociodemographic and clinical variables and results of stool O&P were examined. RESULTS: 419 patients (40.2%) had a stool O&P positive for any protozoan or helminth species. Sixty-nine patients (6.6%) had clinically significant parasite species (excluding B hominis, D fragilis, and E dispar, given their lower risk for causing symptoms/complications): 2.3% had clinically significant protozoans and 4.2% had helminths on stool analysis. CONCLUSION: Given the relatively low prevalence of clinically significant parasites identified, our findings do not support universal screening for enteric parasites with stool O&P among refugee claimants/asylum seekers. However, stool analysis should be considered in certain clinical situations, as part of a more tailored approach.

Concordance of self-reported varicella history and serology among adolescent and adult refugee patients at a primary care clinic in Toronto, Canada.

BACKGROUND: Previous studies have found higher rates of varicella susceptibility among migrants from tropical regions. This study seeks to estimate the prevalence of varicella susceptibility in a cohort of newly arrived refugees and refugee claimants at a primary care clinic in Toronto and to compare patients' self-reported history of varicella infection with serologic test results. METHODS: We conducted a retrospective chart review of 1888 refugee patients aged 13 years and older rostered at a specialized primary care clinic in Toronto from December 2011 to October 2017. Basic sociodemographic variables, self-reported varicella history, and varicella serologic results were examined. RESULTS: Based on serologic testing, 8.5% of individuals were varicella non-immune, with highest rates of varicella susceptibility among adolescents aged 13-19 years (13.5%). All adults over age 60 were varicella immune on serology (n = 56). A positive self-reported history of varicella infection was strongly predictive of varicella immunity on serology (PPV 96.8%; 95% CI: 95.2-97.9). A self-reported history of no prior varicella infection did not correlate reliably with serologic test results (NPV 15.8%; 95% CI: 13.3-18.0). A substantial proportion of patients (34.1%) were unsure of their varicella history. CONCLUSION: Identification and immunization of varicella susceptible refugee newcomers remains a health care priority. Self-reported history of varicella infection had mixed reliability as a predictor of varicella immunity.

Caring for refugees and newcomers in the post-COVID-19 era: Evidence review and guidance for FPs and health providers.

OBJECTIVE: To guide clinicians working in a range of primary care clinical settings on how to provide effective care and support for refugees and newcomers during and after the coronavirus disease 2019 (COVID-19) pandemic. SOURCES OF INFORMATION: The described approach integrates recommendations from evidence-based clinical guidelines on refugee health and COVID-19, practical lessons learned from Canadian Refugee Health Network clinicians working in a variety of primary care settings, and contributions from persons with lived experience of forced migration. MAIN MESSAGE: The COVID-19 pandemic has amplified health and social inequities for refugees, asylum seekers, undocumented migrants, transient migrant workers, and other newcomers. Refugees and newcomers face front-line exposure risks, difficulties accessing COVID-19 testing, exacerbation of mental health concerns, and challenges accessing health care, social, and settlement supports. Existing guidelines for clinical care of refugees are useful, but creative case-by-case strategies must be employed to overcome additional barriers in the context of COVID-19 and new care environments, such as the need for virtual interpretation and digital literacy skills. Clinicians can address inequities and advocate for improved services in collaboration with community partners. CONCLUSION: The COVID-19 pandemic is amplifying structural inequities. Refugees and newcomers require and deserve effective health care and support during this challenging time. This article outlines practical approaches and advocacy priorities for providing care in the COVID-19 context.

Soigner les réfugiés et les nouveaux arrivants à l'ère post-COVID-19: Revue des données probantes et conseils pour les MF et les professionnels de la santé.

OBJECTIF: Guider les cliniciens qui travaillent dans divers milieux cliniques de soins primaires quant aux façons de prodiguer des soins et du soutien efficaces aux réfugiés et aux nouveaux arrivants, durant et après la pandémie de la maladie à coronavirus 2019 (COVID-19). SOURCES D'INFORMATION: L'approche décrite intègre les recommandations tirées de guides de pratique clinique fondés sur des données probantes portant sur la santé des réfugiés et la COVID-19, de leçons concrètes apprises de cliniciens du Réseau canadien sur la santé des réfugiés (Canadian Refugee Health Network) qui travaillent dans divers milieux de soins primaires, ainsi que de contributions de personnes ayant vécu l'expérience d'une migration forcée. MESSAGE PRINCIPAL: La pandémie de la COVID-19 a amplifié les iniquités sociales et de santé pour les réfugiés, les demandeurs d'asile, les migrants sans papiers, les travailleurs transitoires de l'étranger et d'autres nouveaux arrivants. Les réfugiés et les nouveaux arrivants sont confrontés à des risques d'exposition en première ligne, à des problèmes d'accès aux tests de dépistage de la COVID-19, à l'exacerbation des préoccupations liées à la santé mentale, et aux difficultés d'accéder aux soins de santé et aux services sociaux et d'établissement. Les lignes directrices existantes sur les soins cliniques aux réfugiés sont utiles, mais des stratégies créatives au cas par cas doivent être utilisées pour surmonter les obstacles additionnels dans le contexte de la COVID-19 et des nouveaux environnements de soins, comme la nécessité d'une traduction simultanée virtuelle et d'habiletés en littératie numérique. Les cliniciens peuvent lutter contre les iniquités et plaider en faveur de meilleurs services en collaboration avec des partenaires communautaires. CONCLUSION: La pandémie de la COVID-19 amplifie les iniquités structurelles. Les réfugiés et les nouveaux arrivants nécessitent et méritent des soins de santé et du soutien efficaces durant ces moments éprouvants. Cet article présente des approches pratiques et les priorités en matière de défense des droits pour offrir des soins dans le contexte de la COVID-19.

Outbreak of SARS-CoV-2 infection at a large refugee shelter in Toronto, April 2020: a clinical and epidemiologic descriptive analysis.

BACKGROUND: There is high risk of transmission of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in congregate settings, including shelters. This study describes a coronavirus disease 2019 (COVID-19) outbreak and corresponding reported symptomatology at a shelter in Toronto. METHODS: This clinical and epidemiologic analysis focuses on a COVID-19 outbreak at a dedicated refugee shelter in downtown Toronto. All adult residents on site at the shelter were offered SARS-CoV-2 testing on Apr. 20, 2020. At the time of testing, residents were screened for 3 typical COVID-19 symptoms (fever, cough and shortness of breath). Among those who tested positive, a more comprehensive clinical assessment was conducted 1 day after testing and a standardized 15-item symptom screen was administered by telephone 14 days after testing. We report rates of positive test results and clinical symptoms with each assessment interval. RESULTS: Of the 63 adult residents on site at the shelter, 60 agreed to be tested. Among those tested, 41.7% (n = 25) were positive for SARS-CoV-2 infection. Of those who tested positive (n = 25), 20.0% (n = 5) reported fever, cough or shortness of breath at the time of testing. On more detailed assessment 1 day later, 70.8% (17/24) reported a broader range of symptoms. During the 14 days after testing, 87.5% (21/24) reported symptoms of infection. INTERPRETATION: We found a high rate of SARS-CoV-2 infection in this shelter population. Our study underscores the high risk of SARS-CoV-2 transmission in congregate living settings and the importance of mobilizing timely testing and management of symptomatic, paucisymptomatic and asymptomatic residents in shelters.

Risk Factors for Varicella Susceptibility Among Refugees to Toronto, Canada.

Several outbreaks of varicella have occurred among refugees. We aimed to estimate the prevalence of varicella susceptibility among refugees, and identify risk factors for varicella susceptibility. All refugees rostered at Crossroads Clinic in Toronto, Canada in 2011-2014 were included in our study. Varicella serology was assessed at the initial visit. Refugees' age, sex, education, time since arrival, and climate and population density of birth country were abstracted from the chart. Multivariate logistic regression was used to identify risk factors for varicella susceptibility. 1063 refugees were rostered at Crossroads Clinic during the study; 7.9 % (95 % CI 6.1, 9.7) were susceptible to varicella. Tropical climate (OR 3.20, 95 % CI 1.53, 6.69) and younger age (ORper year of age 0.92, 95 % CI 0.88-0.96) were associated with increased varicella susceptibility. These risk factors for varicella susceptibility should be taken into account to maximize the cost-effectiveness of varicella prevention strategies among refugees.

Health Status of North Korean Refugees in Toronto: A Community Based Participatory Research Study.

Increasing numbers of North Koreans are fleeing their country due to economic insecurity and political persecution, with over 1000 North Koreans Refugee (NKR) claims in Canada in the past decade. There is little published on their health. Using a Community-Based Participatory Research (CBPR) methodology, we investigated NKR health status through a retrospective chart review of 1022 patients rostered at a Toronto refugee clinic between December 2011 and June 2014. The health status of 117 NKRs was compared to that of 905 other refugees seen during the same period. There were lower rates of chronic diseases, including obesity and elevated blood pressure, among NKRs. Conversely, some infectious diseases were more prevalent, including hepatitis B and chlamydia. Female NKRs had higher rates of abnormal cervical cytology. This study uniquely uses CBPR methodology to examine the health of NKRs, and can help guide targeted interventions in this population.

Health status of newly arrived refugees in Toronto, Ont: Part 1: infectious diseases.

OBJECTIVE: To determine the prevalence of selected infectious diseases among newly arrived refugee patients and whether there is variation by key demographic factors. DESIGN: Retrospective chart review. SETTING: Primary care clinic for refugee patients in Toronto, Ont. PARTICIPANTS: A total of 1063 refugee patients rostered at the clinic from December 2011 to June 2014. MAIN OUTCOME MEASURES: Demographic information (age, sex, and region of birth); prevalence of HIV, hepatitis B, hepatitis C, Strongyloides, Schistosoma, intestinal parasites, gonorrhea, chlamydia, and syphilis infections; and varicella immune status. RESULTS: The median age of patients was 29 years and 56% were female. Refugees were born in 87 different countries. Approximately 33% of patients were from Africa, 28% were from Europe, 14% were from the Eastern Mediterranean Region, 14% were from Asia, and 8% were from the Americas (excluding 4% born in Canada or the United States). The overall rate of HIV infection was 2%. The prevalence of hepatitis B infection was 4%, with a higher rate among refugees from Asia (12%, P < .001). Hepatitis B immunity was 39%, with higher rates among Asian refugees (64%, P < .001) and children younger than 5 years (68%, P < .001). The rate of hepatitis C infection was less than 1%. Strongyloides infection was found in 3% of tested patients, with higher rates among refugees from Africa (6%, P = .003). Schistosoma infection was identified in 15% of patients from Africa. Intestinal parasites were identified in 16% of patients who submitted stool samples. Approximately 8% of patients were varicella nonimmune, with higher rates in patients from the Americas (21%, P < .001). CONCLUSION: This study highlights the importance of screening for infectious diseases among refugee patients to provide timely preventive and curative care. Our data also point to possible policy and clinical implications, such as targeted screening approaches and improved access to vaccinations and therapeutics.

Health status of newly arrived refugees in Toronto, Ont: Part 2: chronic diseases.

OBJECTIVE: To determine the prevalence of selected chronic diseases among newly arrived refugee patients and to explore associations with key demographic factors. DESIGN: Retrospective chart review. SETTING: Primary care clinic for refugee patients in Toronto, Ont. PARTICIPANTS: A total of 1063 refugee patients rostered at the clinic from December 2011 to June 2014. MAIN OUTCOME MEASURES: Demographic information (age, sex, and region of birth) and prevalence of abnormal Papanicolaou test results, anemia, elevated blood pressure (BP), and markers of prediabetes or diabetes (elevated random glucose, fasting glucose, or hemoglobin A1c levels). RESULTS: More than half of our patients were female (56%) and the median age was 29 years. Patients originated from 87 different countries of birth. Top source countries were Hungary (210 patients), North Korea (119 patients), and Nigeria (93 patients). Most patients were refugee claimants (92%), as opposed to government-assisted refugees (5%). Overall, 11% of female patients who underwent Pap tests had abnormal cervical cytology findings, with the highest rates among women from Asia (26%, P = .028). The prevalence of anemia among children younger than 15 years was 11%; for children younger than 5 years the prevalence was 14%. Approximately 25% of women older than 15 years had anemia, with the highest rates among African women (37%, P < .001). Elevated BP was observed in 30% of adult patients older than 15 years, with higher prevalence among male patients (38%, P < .001) and patients from Europe (42%, P < .001). Laboratory markers of prediabetes or diabetes were identified in 8% of patients older than 15 years, with higher rates among patients from Europe (15%, P = .026). CONCLUSION: This study found a notable burden of chronic diseases among refugee patients, including anemia, elevated BP, and impaired glycemic control, as well as abnormal cervical cytology findings. These results underscore the importance of accessible, comprehensive primary care for refugees, with attention to prevention and management of chronic diseases in addition to management of infectious disease.

Prediction of severe disease in children with diarrhea in a resource-limited setting.

OBJECTIVE: To investigate the accuracy of three clinical scales for predicting severe disease (severe dehydration or death) in children with diarrhea in a resource-limited setting. METHODS: Participants included 178 children admitted to three Rwandan hospitals with diarrhea. A local physician or nurse assessed each child on arrival using the World Health Organization (WHO) severe dehydration scale and the Centers for Disease Control (CDC) scale. Children were weighed on arrival and daily until they achieved a stable weight, with a 10% increase between admission weight and stable weight considered severe dehydration. The Clinical Dehydration Scale was then constructed post-hoc using the data collected for the other two scales. Receiver Operator Characteristic (ROC) curves were constructed for each scale compared to the composite outcome of severe dehydration or death. RESULTS: The WHO severe dehydration scale, CDC scale, and Clinical Dehydration Scale had areas under the ROC curves (AUCs) of 0.72 (95% CI 0.60, 0.85), 0.73 (95% CI 0.62, 0.84), and 0.80 (95% CI 0.71, 0.89), respectively, in the full cohort. Only the Clinical Dehydration Scale was a significant predictor of severe disease when used in infants, with an AUC of 0.77 (95% CI 0.61, 0.93), and when used by nurses, with an AUC of 0.78 (95% CI 0.63, 0.93). CONCLUSIONS: While all three scales were moderate predictors of severe disease in children with diarrhea, scale accuracy varied based on provider training and age of the child. Future research should focus on developing or validating clinical tools that can be used accurately by nurses and other less-skilled providers to assess all children with diarrhea in resource-limited settings.

Nurse mentorship to improve the quality of health care delivery in rural Rwanda.

Quality of care at rural health centers in Rwanda is often limited by gaps in individual nurses' knowledge and skills, as well as systems-level issues, such as supply and human resource management. Typically, nurse training is largely didactic and supervision infrequent. Partners In Health and the Rwandan Ministry of Health (MOH) collaborated to implement the nurse-focused Mentoring and Enhanced Supervision at Health Centers (MESH) program. Rwandan nurse-mentors trained in quality improvement and mentoring techniques were integrated into the MOH's district supervisory team to provide ongoing, on-site individual mentorship to health center nurses and to drive systems-level quality improvement activities. The program targeted 21 health centers in two rural districts and supported implementation of MOH evidence-based protocols. Initial results demonstrate significant improvement in a number of quality-of-care indicators. Emphasis on individual provider and systems-level issues, integration within MOH systems, and continuous monitoring efforts were instrumental to these early successes.