Improving access to health care for undocumented immigrants in the United States

Integrating NHANES and toxicity forecaster data to compare pesticide exposure and bioactivity by farmwork history and US citizenship

BACKGROUND

Farmworkers in the United States, especially migrant workers, face unique barriers to healthcare and have documented disparities in health outcomes. Exposure to pesticides, especially those persistent in the environment, may contribute to these health disparities.

OBJECTIVE

Quantify differences in pesticide exposure bioactivity by farmworker category and US citizenship status.

METHODS

We queried the National Health and Nutrition Examination Study (NHANES) from 1999-2014 for pesticide exposure biomarker concentrations among farmworkers and non-farmworkers by citizenship status. We combined this with toxicity assay data from the US Environmental Protection Agency's (EPA's) Toxicity Forecaster (ToxCast). We estimated adverse biological effects that occur across a range of human population-relevant pesticide doses.

RESULTS

In total, there were 844 people with any farmwork history and 23,592 non-farmworkers. Of 12 commonly detectable pesticide biomarkers in NHANES, 2,4-dichlorophenoxyacetic acid (OR = 3.76, p = 1.33 × 10-6) was significantly higher in farmworkers than non-farmworkers. Farmworkers were 1.15 times more likely to have a bioactive pesticide biomarker measurement in comparison to non-farmworkers (adjusted OR = 1.15, 95% CI: 0.87, 1.51). Non-U.S. citizens were 1.39 times more likely to have bioactive pesticide biomarker concentrations compared to people with U.S. citizenship (adjusted OR 1.39, 95% CI: 1.17, 1.64). Additionally, non-citizens were significantly more exposed to bioactive levels of β-hexachlorocyclohexane (BHC) (OR = 8.10, p = 1.33 × 10-6), p,p-DDE (OR = 2.60, p = 0.02), and p,p'-DDT (OR = 7.75, p = 0.01).

IMPACT STATEMENT

Farmworkers are a vulnerable population due to social determinants of health and occupational exposures. Here, we integrate US population chemical biomonitoring data and toxicity outcome data to assess pesticide exposure by farmwork history and citizenship. We find that farmworkers and those without US citizenship are significantly more likely to be exposed to concentrations of pesticides which are bioactive in toxicological assays. Thus, farmworkers employed in the US but who are not citizens could be at increased risk of harm to their health due to pesticides. These findings are important to shape evidence-based policies in regulatory science to promote worker safety.

A Clash of Culture and Structure: Considering Barriers to Access for People Without Papers

As the United States' population grows via migration and immigration, with this rise in diverse identities, there has been increasing concern regarding disparities for undocumented immigrants living in the U.S. with limited access to the health system. Given the various constraints involving communication and social structures that undocumented immigrants face, a culture-centered approach is drawn on to investigating how this group goes about navigating a dominant health system given their restricted access. I explore co-constructed themes that emerged through conversations with undocumented immigrants, (people without papers as I call them in this work) living in the United States to gain an understanding as to the structural and cultural limitations faced by this group. By doing qualitative semi-structured interviews with local participants living in the South Florida region, I describe the various features of a complex U.S. health system that undocumented immigrants (people without papers) deemed as important obstacles that limit their willingness to interact with official medical spaces. This work draws on narratives and accounts to shed light on the intersection of disparities this group has to overcome in order to consider entering a medical space to receive the treatment they might need. The findings of this article highlighted the structural violence that certain subaltern groups, such as people without papers experience due to their limited access to foundational systems in their environment.

Barriers and facilitators to healthcare for people without documentation status: A systematic integrative literature review

AIMS

To identify the barriers and facilitators to healthcare for people without documentation status.

DESIGN

We conducted a systematic integrative literature review following the Whittemore and Knafl methodology.

METHODS

Literature search was conducted to identify studies addressing barriers or facilitators to healthcare for people without documentation status in the United States between 2012 and 2022. Studies were critiqued for quality, with results analysed thematically using the social-ecological model.

DATA SOURCES

Searches were conducted in PubMed, PAIS, Web of Science, CINAHL and Psych Info in October 2022.

RESULTS

The review incorporated 30 studies (19 qualitative and 11 quantitative). People without documentation status encountered numerous healthcare barriers such as intrapersonal (lack of financial resources and health insurance, fear), interpersonal (language and cultural discrepancies, discrimination), community (bureaucratic requirements, anti-immigrant rhetoric) and policy-related barriers. Conversely, linguistically and culturally competent care, empathetic and representative staff, health navigators, safety-net clinics and supportive federal policies emerged as key facilitators.

CONCLUSION

These findings illuminate the complex healthcare disparities experienced by people without documentation status and underscore facilitators enhancing care accessibility. Future research is needed to explore interventions to increase access to care for this population.

IMPACT

This paper provides a comprehensive examination of the complex barriers and facilitators to healthcare for people without documentation status in the United States. The findings support the value of universal healthcare access, a priority of the World Health Organization, and can inform healthcare policies and practices worldwide.

REPORTING METHOD

The review was reported following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses framework.

PATIENT OR PUBLIC CONTRIBUTION

No patient or public contribution was needed.

TRIAL AND PROTOCOL REGISTRATION

The study protocol was registered with the PROSPERO database (registration number: CRD42022366289).

Unauthorized Mexican-Born Immigrants, Occupational Injuries, and the use of Medical Services in the United States

This article examines how unauthorized immigrant status is associated with the risk of suffering a work-related accident or illness and with the use of medical services after experiencing an injury among Mexican immigrants in the United States. Using individual-level data on 81,004 Mexican immigrants who previously worked in the United States and were interviewed when they returned to Mexico in the Survey of Migration in the Northern Border of Mexico from 2010 to 2018, we estimate a series of probit models and nonlinear decompositions to analyze legal status differences in the incidence of occupational injuries among immigrant workers. The results show that among Mexican immigrants in the United States unauthorized status was associated with a greater probability of experiencing an occupational injury. The higher injury rate among unauthorized immigrants was partly driven by the fact that they worked more hours per day, more days per week, and were employed in riskier occupations than authorized immigrants. If unauthorized immigrants were older and had higher levels of English-language ability, the injury gap would have been even larger. Unauthorized status was also associated with a lower likelihood of using medical services after suffering an occupational injury because unauthorized workers had less access to medical care. The findings show that the right to legal work has important implications for the health of immigrants by setting a higher risk level for injury on the job and limiting access to health care following such an injury.

The Disproportionate Impact of COVID-19 among Undocumented Immigrants and Racial Minorities in the US

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the virus responsible for coronavirus disease 2019 (COVID-19), has had an unprecedented effect, especially among under-resourced minority communities. Surveillance of those at high risk is critical for preventing and controlling the pandemic. We must better understand the relationships between COVID-19-related cases or deaths and characteristics in our most vulnerable population that put them at risk to target COVID-19 prevention and management efforts. Population characteristics strongly related to United States (US) county-level data on COVID-19 cases and deaths during all stages of the pandemic were identified from the onset of the epidemic and included county-level socio-demographic and comorbidities data, as well as daily meteorological modeled observation data from the North American Regional Reanalysis (NARR), and the NARR high spatial resolution model to assess the environment. Advanced machine learning (ML) approaches were used to identify outbreaks (geographic clusters of COVID-19) and included spatiotemporal risk factors and COVID-19 vaccination efforts, especially among vulnerable and underserved communities. COVID-19 outcomes were found to be negatively associated with the number of people vaccinated and positively associated with age, the prevalence of cardiovascular disease, diabetes, and the minority population. There was also a strong positive correlation between unauthorized immigrants and the prevalence of COVID-19 cases and deaths. Meteorological variables were also investigated, but correlations with COVID-19 were relatively weak. Our findings suggest that COVID-19 has had a disproportionate impact across the US population among vulnerable and minority communities. Findings also emphasize the importance of vaccinations and tailored public health initiatives (e.g., mask mandates, vaccination) to reduce the spread of COVID-19 and the number of COVID-19 related deaths across all populations.

A Mobile Health Breast Cancer Educational and Screening Intervention Tailored for Low-Income, Uninsured Latina Immigrants

Objective: To investigate the efficacy of mobile health (mHealth) intervention strategies that delivered either personalized, culturally, and linguistically tailored cell phone voice messages or text messages related to breast cancer and prevention, compared to the control group, to determine which strategy is more likely to increase breast cancer knowledge and screening mammography among low-income Latina immigrants. Methods: This randomized controlled trial assigned 256 Latina immigrants 40 years of age or older to one of three groups: an automated cell phone voice message group, an automated text message group, or the control group (mail). The mHealth intervention employed a comprehensive approach that included breast cancer and prevention education and free mammography screening. Outcome measures included knowledge of breast cancer and breast cancer prevention, and adherence to screening mammography. Results: There was a general increase in breast cancer knowledge after the educational intervention for all the groups [p = 0.01, t(199) = 3.996]. Knowledge increase and mammography adherence did not differ based on group. Conclusion: More important than the actual method of communication is how breast cancer and prevention messages are constructed, who the messenger is, and the enabling factors that facilitate screening adherence. A breast cancer preventive intervention program that is personalized, culturally and linguistically tailored, and offers a free or low-cost mammogram holds promise to be an effective method in reaching an underserved Latina population with a high breast cancer burden.

Challenges for Adult Undocumented Immigrants in Accessing Primary Care: A Qualitative Study of Health Care Workers in Los Angeles County

Purpose: Amid increasingly restrictive federal immigration and health care policies in the United States, access to health care for undocumented immigrants is highly dependent on the extent to which local and state policies and programs address the needs of this population. In Los Angeles County (LA County), home to the nation's largest undocumented immigrant population, supportive policies are in place, yet little is known about how undocumented immigrants navigate available services.

Methods: To gain insight into how federal, state, and local policies overlay and contribute to the experience of health care seeking among undocumented immigrants in LA County, we interviewed 19 key informant health care workers involved in the delivery of health care services, using a purposive snowball sampling approach.

Results: Three key themes emerged: (1) health care workers at all clinics sampled reported primary care appointments are readily available for undocumented immigrants; however, primary care services remain underutilized; (2) fear, misinformation, and misperceptions of coverage and immigration policies—most commonly related to the revised Public Charge Rule—may reduce program enrollment and access; and (3) frontline health care workers feel ill-equipped to address patient fears and misinformation.

Conclusion: Although county programs were perceived to improve access by covering health care costs and ensuring appointment availability, new restrictive immigration policies, such as the revised Public Charge Rule, and widespread misinformation present challenges that threaten the success of these programs. Future study to improve undocumented immigrant access to care should focus on addressing barriers resulting from these policies.

Systematic Review of Mammography Screening Educational Interventions for Hispanic Women in the United States

In the United States (U.S.), Hispanics experience breast cancer disparities. Breast cancer is the leading cause of cancer-related death among Hispanic women, and Hispanic women receive mammography screening at lower rates than some other ethnic groups. This low rate of screening mammography is associated with increased risk for possible late-stage diagnosis and lower survival rates. Educational interventions could play a role in increasing screening mammography rates among Hispanic women. This systematic review synthesized the current literature on educational interventions to increase mammography screening among Hispanic women. The review included studies published between May 2003 and September 2017 with experimental and quasi-experimental interventions to increase mammography screening among Hispanics in the U.S. Five studies out of an initial 269 studies met inclusion criteria for the review. All studies employed an interpersonal intervention strategy with community health workers, or promotoras, to deliver the mammography screening intervention. For each study, odds ratios (OR) were calculated to estimate intervention effectiveness based on similar follow-up time periods. The study ORs resulted in a narrow range between 1.02 and 2.18, indicating a low to moderate intervention effect for these types of interpersonal cancer education interventions. The summary OR for the random effects model was 1.67 (CI 1.24-2.26). Hispanics exhibit lower levels of adherence to screening mammography than non-Hispanic whites. Interpersonal cancer education interventions such as the use of promotoras may help to mediate the impact of barriers to receiving a mammogram such as low health literacy, deficits in knowledge about the benefits of screening, and low awareness of the availability of screening services.

Disparities in Health Care Coverage Among U.S. Born and Mexican/Central American Born Labor Workers in the U.S

We examined health insurance coverage among U.S. and Mexican/Central American (M/CA) born labor workers living in the U.S. Using data from the 2010-2015 National Health Interview Survey, we employed logistic regression models to examine health insurance coverage and covariates among U.S. and M/CA born labor workers. Prevalence ratios between U.S. and M/CA born workers were also obtained. U.S. born workers had double the prevalence of insurance coverage. Regarding private insurance coverage, U.S. born workers had a higher prevalence of coverage compared to their M/CA born counterparts. Among foreign born workers with U.S. citizenship, the odds of having insurance coverage was greater than that of noncitizens. Additionally, those who had lived in the U.S. for 10 or more years had higher odds of having health insurance coverage. Disparities in health care coverage exist between U.S. born and foreign born labor workers.

Barriers to health care for undocumented immigrants: a literature review

With the unprecedented international migration seen in recent years, policies that limit health care access have become prevalent. Barriers to health care for undocumented immigrants go beyond policy and range from financial limitations, to discrimination and fear of deportation. This paper is aimed at reviewing the literature on barriers to health care for undocumented immigrants and identifying strategies that have or could be used to address these barriers. To address study questions, we conducted a literature review of published articles from the last 10 years in PubMed using three main concepts: immigrants, undocumented, and access to health care. The search yielded 341 articles of which 66 met study criteria. With regard to barriers, we identified barriers in the policy arena focused on issues related to law and policy including limitations to access and type of health care. These varied widely across countries but ultimately impacted the type and amount of health care any undocumented immigrant could receive. Within the health system, barriers included bureaucratic obstacles including paperwork and registration systems. The alternative care available (safety net) was generally limited and overwhelmed. Finally, there was evidence of widespread discriminatory practices within the health care system itself. The individual level focused on the immigrant’s fear of deportation, stigma, and lack of capital (both social and financial) to obtain services. Recommendations identified in the papers reviewed included advocating for policy change to increase access to health care for undocumented immigrants, providing novel insurance options, expanding safety net services, training providers to better care for immigrant populations, and educating undocumented immigrants on navigating the system. There are numerous barriers to health care for undocumented immigrants. These vary by country and frequently change. Despite concerns that access to health care attracts immigrants, data demonstrates that people generally do not migrate to obtain health care. Solutions are needed that provide for noncitizens’ health care.

Assessing health care services used by California's undocumented immigrant population in 2010

Undocumented immigrants were excluded from the health benefit Marketplaces created by the Affordable Care Act partly because of claims that they contribute to problems such as high costs and emergency department (ED) crowding. This article examines the likely health care use and costs of undocumented immigrants in California in 2009-10. Using data from the 2009 California Health Interview Survey (CHIS), we developed a model that estimated the state's adult and child undocumented immigrant population, since the survey does not explicitly inquire about undocumented status. The survey also provided information on insurance status, doctor visits, and ED visits in the previous year. We found that undocumented immigrants in California, and the uninsured among them, had fewer or similar numbers of doctor visits, ED visits, and preventive services use compared to US citizens and other immigrant groups. Allowing undocumented immigrants to purchase insurance in the Marketplaces and ensuring receipt of low-cost preventive services can contribute to lower premiums and reduce resource strains on safety-net providers.