Improving health equity through health care systems research.

OBJECTIVE: To describe health equity research priorities for health care delivery systems and delineate a research and action agenda that generates evidence-based solutions to persistent racial and ethnic inequities in health outcomes. DATA SOURCES AND STUDY SETTING: This project was conducted as a component of the Agency for Healthcare Research and Quality's (AHRQ) stakeholder engaged process to develop an Equity Agenda and Action Plan to guide priority setting to advance health equity. Recommendations were developed and refined based on expert input, evidence review, and stakeholder engagement. Participating stakeholders included experts from academia, health care organizations, industry, and government. STUDY DESIGN: Expert group consensus, informed by stakeholder engagement and targeted evidence review. DATA COLLECTION/EXTRACTION METHODS: Priority themes were derived iteratively through (1) brainstorming and idea reduction, (2) targeted evidence review of candidate themes, (3) determination of preliminary themes; (4) input on preliminary themes from stakeholders attending AHRQ's 2022 Health Equity Summit; and (5) and refinement of themes based on that input. The final set of research and action recommendations was determined by authors' consensus. PRINCIPAL FINDINGS: Health care delivery systems have contributed to racial and ethnic disparities in health care. High quality research is needed to inform health care delivery systems approaches to undo systemic barriers and inequities. We identified six priority themes for research; (1) institutional leadership, culture, and workforce; (2) data-driven, culturally tailored care; (3) health equity targeted performance incentives; (4) health equity-informed approaches to health system consolidation and access; (5) whole person care; (6) and whole community investment. We also suggest cross-cutting themes regarding research workforce and research timelines. CONCLUSIONS: As the nation's primary health services research agency, AHRQ can advance equitable delivery of health care by funding research and disseminating evidence to help transform the organization and delivery of health care.

Differences in use of high- and low-value health care between immigrant and US-born adults.

OBJECTIVE: To examine differences in the use of high- and low-value health care between immigrant and US-born adults. DATA SOURCE: The 2007-2019 Medical Expenditure Panel Survey. STUDY DESIGN: We split the sample into younger (ages 18-64 years) and older adults (ages 65 years and over). Our outcome measures included the use of high-value care (eight services) and low-value care (seven services). Our key independent variable was immigration status. For each outcome, we ran regressions with and without individual-level characteristics. DATA COLLECTION/EXTRACTION METHODS: N/A. PRINCIPAL FINDINGS: Before accounting for individual-level characteristics, the use of high- and low-value care was lower among immigrant adults than US-born adults. After accounting for individual-level characteristics, this difference decreased in both groups of younger and older adults. For high-value care, significant differences were observed in five services and the direction of the differences was mixed. The use of breast cancer screening was lower among immigrant than US-born younger and older adults (-5.7 [95% CI: -7.4 to -3.9] and -2.9 percentage points [95% CI: -5.6 to -0.2]) while the use of colorectal cancer screening was higher among immigrant than US-born younger and older adults (2.6 [95% CI: 0.5 to 4.8] and 3.6 [95% CI: 0.2 to 7.0] percentage points). For low-value care, we did not identify significant differences except for antibiotics for acute upper respiratory infection among younger adults and opioids for back pain among older adults (-3.5 [95% CI: -5.5 to -1.5] and -3.8[95% CI: -7.3 to -0.2] percentage points). Particularly, differences in socioeconomic status, health insurance, and care access between immigrant and US-born adults played a key role in accounting for differences in the use of high- and low-value health care. The use of high-value care among immigrant and US-born adults increased over time, but the use of low-value care did not decrease. CONCLUSION: Differential use of high- and low-value care between immigrant and US-born adults may be partly attributable to differences in individual-level characteristics, especially socioeconomic status, health insurance, and access to care.

Effects of Medicare eligibility and enrollment at age 65 among immigrants and US-born residents.

BACKGROUND: Understanding the impacts of Medicare coverage among immigrants is of high policy importance, but there is currently limited evidence. In this study, we examined the effects of near universal access to Medicare coverage at age 65 years between immigrants and US-born residents. METHODS: Using the 2007-2019 Medical Expenditure Panel Survey, we employed a regression discontinuity design, which exploits the eligibility for Medicare at age 65 years. Our outcomes were health insurance coverage, healthcare spending, access to and use of health care, and self-reported health status. RESULTS: Medicare eligibility at age 65 led to significant increases in Medicare coverage among immigrants and US-born residents (74.6 [95% CI: 71.6-77.5] and 81.6 [95% CI: 80.5-82.7] percentage points). Medicare enrollment at age 65 decreased total healthcare spending and out-of-pocket spending by $1579 (95% CI: -2092 to 1065) and $423 (95% CI: -544 to 303) for immigrants and $1186 (95% CI: -2359 to 13) and $450 (95% CI: -774 to 127) for US-born residents. After Medicare enrollment at age 65, immigrants reported only limited improvements in overall access to and use of health care, but they reported significant increases in the use of high-value care (11.5 [95% CI: 6.8-16.2], 8.3 [95% CI: 6.0-10.6], 8.4 [95% CI: 1.0-15.8], and 2.3 [95% CI: 0.9-3.7] percentage points increase for colorectal cancer screening, eye examination for diabetes, influenza vaccine, and cholesterol measurement) and improvements in self-reported health (5.9 [95% CI: 0.9-10.8] and 4.8 [95% CI: 0.5-9.0] percentage points increase for good perceived physical and mental health). Medicare enrollment also increased prescription drug spending by $705 (95% CI: 292-1117), despite the unchanged use of prescription drugs. For US-born residents, use of high-value care, self-reported health, and prescription drug use and spending did not change substantially after Medicare enrollment. CONCLUSION: Medicare has the potential to improve care among older adult immigrants.

Growing inequities in mental health crisis services offered to indigent patients in Puerto Rico versus the US states before and after Hurricanes Maria and Irma.

OBJECTIVE: To assess changes in the availability of mental health crisis services in Puerto Rico relative to US states before and after Hurricanes Maria and Irma. DATA SOURCES/STUDY SETTING: National Mental Health Services Surveys conducted in 2016 and 2020. STUDY DESIGN: Repeated cross-sectional design. The independent variable was mental health facility location in Puerto Rico or a US state. Dependent variables were the availability of three mental health crisis services (psychiatric emergency walk-in services, suicide prevention services, and crisis intervention team services). DATA COLLECTION/EXTRACTION METHODS: The proportion and per 100,000 population rate of facilities offering crisis services were calculated. PRINCIPAL FINDINGS: The availability of crisis services at mental health facilities in Puerto Rico remained stable between 2016 and 2020. These services were offered less at indigent care facilities in Puerto Rico than US states (e.g., 38.2% vs. 49.5% for suicide prevention, p = 0.06) and the magnitude of difference increased following Hurricane Maria. CONCLUSIONS: There are disparities between Puerto Rico and US states in the availability of mental health crisis services for indigent patients.

The impact of Medicaid funding structures on inequities in health care access for Latinos in New York, Florida, and Puerto Rico.

OBJECTIVE: To study the impact of Medicaid funding structures before and after the implementation of the Affordable Care Act (ACA) on health care access for Latinos in New York (Medicaid expansion), Florida (Medicaid non-expansion), and Puerto Rico (Medicaid block grant). DATA SOURCES: Pooled state-level data for New York, Florida, and Puerto Rico from the 2011-2019 Behavioral Risk Factor Surveillance System and data from the 2011-2019 American Community Survey and Puerto Rico Community Survey. STUDY DESIGN: Cross-sectional study using probit with predicted margins to separately compare four health care access measures among Latinos in New York, Florida, and Puerto Rico (having health insurance coverage, having a personal doctor, delayed care due to cost, and having a routine checkup). We also used difference-in-differences to measure the probability percent change of having any health insurance and any public health insurance before (2011-2013) and after (2014-2019) the ACA implementation among citizen Latinos in low-income households. DATA COLLECTION: The sample consisted of Latinos aged 18-64 residing in New York, Florida, and Puerto Rico from 2011 to 2019. PRINCIPAL FINDINGS: Latinos in Florida had the lowest probability of having health care access across all four measures and all time periods compared with those in New York and Puerto Rico. While Latinos in Puerto Rico had greater overall health care access compared with Latinos in both states, health care access in Puerto Rico did not change over time. Among citizen Latinos in low-income households, New York had the greatest post-ACA probability of having any health insurance and any public health insurance, with a growing disparity with Puerto Rico (9.7% any [1.6 SE], 5.2% public [1.8 SE]). CONCLUSIONS: Limited Medicaid eligibility (non-expansion of Florida's Medicaid program) and capped Medicaid funds (Puerto Rico's Medicaid block grant) contributed to reduced health care access over time, particularly for citizen Latinos in low-income households.

Avoiding Medicaid enrollment after the reversal of the changes in the public charge rule among Latino and Asian immigrants.

OBJECTIVE: To estimate the avoidance of Medicaid enrollment among Latino and Asian immigrants due to fears about immigration status. In 2019, changes to the "public charge" rule made it difficult for immigrants to receive a green card or permanent residence visa, particularly for those who used health and nutrition benefits. Despite the Biden administration's reversal of these changes, fear and misinformation persist among immigrants. DATA SOURCES: Pooled data from the 2017 to 2020 California Health Interview Survey. STUDY DESIGN: We used adjusted predicted probability models to estimate differences in access to and use of health care and health insurance coverage among Latino and Asian immigrant adults with and without green cards, using US citizens as the reference. We estimated the avoidance of Medicaid enrollment among immigrants without a green card, the immigrant population subject to the public charge rule. DATA COLLECTION/EXTRACTION METHODS: Population stratified by race/ethnicity and green card status. PRINCIPAL FINDINGS: Latino immigrants without a green card were -23.1% (CI: -27.8, -18.4) less likely to be insured, -9.2% (CI: -12.8, -5.5) less likely to have Medicaid coverage, -9.3% (CI: -14.5, -4.1) less likely to have a usual source of care, and -8.4% (CI: -13.2, -0.3) less likely to have a physician visit relative to citizens. Asian immigrants without a green card were -11.7% (CI: -19.7, -3.72) less likely to be insured, -8.8% (CI: -11.6, -6.1) less likely to have Medicaid coverage, -11.6% (CI: -19.3, -3.9) less likely to have a usual source of care, and -11.0% (CI: -19.2, -2.3) less likely to have a physician visit. Between 107,956 and 192,905 Latino immigrants and 1294 and 4702 Asian immigrants in California likely avoided Medicaid enrollment due to fears about their immigration status. CONCLUSION: While our estimates are lower than those of previous studies, our findings highlight barriers to health care for immigrants despite the reversal of the changes in the public charge rule. Since the public charge rule was not abolished, immigrants with low incomes might choose not to seek health care, despite recent efforts in California to expand Medicaid coverage to all eligible immigrants regardless of documentation statuses.

The Other US Border: Health Insurance Coverage Among Latino Immigrants In Puerto Rico.

Puerto Rico is a US territory and a popular destination for Latino immigrants in the Caribbean. Even with few language and cultural barriers, however, many Latino immigrants in Puerto Rico are uninsured. Using data from the 2014-19 Puerto Rico Community Survey, we examined inequities in health insurance coverage for non-Puerto Rican Latinos ages 18-64 living in Puerto Rico according to citizenship status and Latino subgroup (Dominican, Cuban, Mexican, and other Latino). After controlling for potential confounders, we found that noncitizen Dominicans had a significantly lower probability of having any health insurance (57.2 percent) and having any private insurance (31.5 percent). Regardless of similarities in culture and language, Latino immigrants on the island, particularly Dominicans, experience major health insurance coverage inequities. Considering that Puerto Rico's immigration system is regulated by US federal statute, both federal and local policy makers should acknowledge and focus on reducing these immigrant disparities in health insurance coverage.

Health Policy Challenges Posed By Shifting Demographics And Health Trends Among Immigrants To The United States.

Since the 1960s the immigrant population in the United States has increased fourfold, reaching 44.7 million, or 13.7 percent of the US population, in 2018. The shifting immigrant demography presents several challenges for US health policy makers. We examine recent trends in immigrant health and health care after the Great Recession and the nationwide implementation of the Affordable Care Act. Recent immigrants are more likely to have lower incidence of chronic health conditions than other groups in the US, although these differences vary along the citizenship and documentation status continuum. Health care inequities among immigrants and US-born residents increased after the Great Recession and later diminished after the Affordable Care Act took effect. Unremitting inequities remain, however, particularly among noncitizen immigrants. The number of aging immigrants is growing, which will present a challenge to the expansion of coverage to this population. Health care and immigration policy changes are needed to integrate immigrants successfully into the US health care system.

The Affordable Care Act and Health Care Access and Utilization Among White, Asian, and Latino Immigrants in California.

OBJECTIVE: The objective of this study was to examine changes in health care access and utilization for White, Asian, and Latino immigrants associated with the implementation of the Patient Protection and Affordable Care Act (ACA) in California. STUDY DESIGN: Using the 2011-2013 and 2015-2017 California Health Interview Survey, we examined changes in 2 health care access and 2 utilization measures among 3 immigrant racial/ethnic groups. We estimated the unadjusted and adjusted percentage point changes in the pre-ACA and post-ACA periods. Adjusted estimates were obtained using linear probability models controlling for predisposing, enabling, and need factors. RESULTS: After the ACA was nationally implemented in 2014, rates of insurance increased for non-Latino (NL) White, NL Asian, and Latino immigrant groups in California. Latino immigrants had the largest increase in insurance coverage (14.3 percentage points), followed by NL Asian immigrants (9.9 percentage points) and NL White immigrants (9.2 percentage points). Despite benefitting from the largest increase in insurance coverage, the proportion of insured Latino immigrants was still lower than that of NL White and NL Asian immigrants. Latino immigrants reported a small but significant decrease in the usual source of care (-2.8 percentage points) and an increase in emergency department utilization (2.9 percentage points) after the ACA. No significant changes were found after the ACA in health care access and utilization among NL White and NL Asian immigrants. CONCLUSIONS: Insurance coverage increased significantly for these 3 immigrant groups after the ACA. While Latino immigrants had the largest gain in insurance coverage, the proportion of Latino immigrants with insurance remained the lowest among the 3 immigrant racial/ethnic groups.

Inequities in Access to Care and Health Care Spending for Asian Americans With Cancer.

BACKGROUND: Asian Americans have lower cancer screening rates than non-Latino "Whites," suggesting inequities in cancer prevention among Asian Americans. Little is known about inequities in cancer treatment between Whites and Asian Americans with cancer. METHODS: Using the 2002-2017 Medical Expenditure Panel Survey, we examined inequities in access to care and health care spending between Whites and Asian Americans with and without cancer. Our outcomes included 3 measures of access to care and 3 measures of health care spending. We used multivariable regressions while adjusting for predisposing, enabling, and need factors and estimated the mean adjusted values of the outcomes for each group. We then examined the differences in these adjusted mean outcomes among Asian Americans relative to Whites. RESULTS: We observed evidence of inequities that Asian Americans without cancer experienced limited access to care due to a lack of a usual source of care. The likelihood of having a usual source of care was lower among Asian Americans without cancer than Whites without cancer. Inequities were not observed among Asian Americans with cancer. Compared with Whites with cancer, Asian Americans with cancer had similar or better levels of access to care. No or marginal differences in health care spending were detected between Whites and Asian Americans with cancer. These findings were consistent in both nonelderly and elderly groups. CONCLUSION: While Asian Americans without cancer have unmet medical needs due to limited access to care, access to care and spending are relatively equitable between Whites and Asian Americans with cancer.

Differences in Health Care Expenditures Among Non-Latino Whites and Asian Subgroups Vary Along the Distribution of the Expenditures.

Using a nationally representative sample from the 2013 to 2016 Medical Expenditure Panel Survey, we examined differences among non-Latino Whites and Asian subgroups (Asian Indians, Chinese, Filipinos, and other Asians) across distributions of total health care expenditures and out-of-pocket (OOP) expenditures. For total health care expenditures, differences between Asian and White adults persisted throughout the distribution, but the magnitude of the difference was larger at no or low levels of expenditures than at high expenditure levels. A similar pattern was observed in OOP expenditures, but the magnitude of the difference was substantially larger at low levels of expenditures. The extent of the difference varied by Asian subgroup, but this trend persisted across all the subgroups. Similar trends were observed by nativity and limited English proficiency. Our findings suggest that differences in health care expenditures between Whites and Asians are more pronounced at low expenditure levels.

Comparison of Use of Health Care Services and Spending for Unauthorized Immigrants vs Authorized Immigrants or US Citizens Using a Machine Learning Model.

Importance: Knowledge about use of health care services (health care utilization) and expenditures among unauthorized immigrant populations is uncertain because of limitations in ascertaining legal status in population data. Objective: To examine health care utilization and expenditures that are attributable to unauthorized and authorized immigrants vs US-born individuals. Design, Setting, and Participants: This cross-sectional study used the data on documentation status from the Los Angeles Family and Neighborhood Survey (LAFANS) to develop a random forest classifier machine learning model. K-fold cross-validation was used to test model performance. The LAFANS is a randomized, multilevel, in-person survey of households residing in Los Angeles County, California, consisting of 2 waves. Wave 1 began in April 2000 and ended in January 2002, and wave 2 began in August 2006 and ended in December 2008. The machine learning model was then applied to a nationally representative database, the 2016-2017 Medical Expenditure Panel Survey (MEPS), to predict health care expenditures and utilization among unauthorized and authorized immigrants and US-born individuals. A generalized linear model analyzed health care expenditures. Logistic regression modeling estimated dichotomous use of emergency department (ED), inpatient, outpatient, and office-based physician visits by immigrant groups with adjusting for confounding factors. Data were analyzed from May 1, 2019, to October 14, 2020. Exposures: Self-reported immigration status (US-born, authorized, and unauthorized status). Main Outcomes and Measures: Annual health care expenditures per capita and use of ED, outpatient, inpatient, and office-based physician care. Results: Of 47 199 MEPS respondents with nonmissing data, 35 079 (74.3%) were US born, 10 816 (22.9%) were authorized immigrants, and 1304 (2.8%) were unauthorized immigrants (51.7% female; mean age, 47.6 [95% CI, 47.4-47.8] years). Compared with authorized immigrants and US-born individuals, unauthorized immigrants were more likely to be aged 18 to 44 years (80.8%), Latino (96.3%), and Spanish speaking (95.2%) and to have less than 12 years of education (53.7%). Half of unauthorized immigrants (47.1%) were uninsured compared with 15.9% of authorized immigrants and 6.0% of US-born individuals. Mean annual health care expenditures per person were $1629 (95% CI, $1330-$1928) for unauthorized immigrants, $3795 (95% CI, $3555-$4035) for authorized immigrants, and $6088 (95% CI, $5935-$6242) for US-born individuals. Conclusions and Relevance: Contrary to much political discourse in the US, this cross-sectional study found no evidence that unauthorized immigrants are a substantial economic burden on safety net facilities such as EDs. This study illustrates the value of machine learning in the study of unauthorized immigrants using large-scale, secondary databases.

Insurance Types, Usual Sources of Health Care, and Perceived Discrimination.

INTRODUCTION: Discrimination can compromise access to and utilization of health care and lead to poorer health. As such, it is important to understand the factors associated with experiences of discrimination in health care. METHODS: Using data from the 2015 to 2017 California Health Interview Survey (n = 63,100), this study examined whether insurance types and sites of usual sources of care were associated with reasons for perceived discrimination in health care and whether the reasons were associated with delaying health care. Odds of study outcomes were calculated among insured adults using logistic regressions. Insurance coverage types and sites of usual sources of care were the main independent variables. Six reasons for lifetime discrimination in health care were examined: 1) dissatisfaction with the health care system, 2) race or skin color, 3) age, 4) way the participant speaks English or other barrier to communication, 5) insurance status or type, and 6) income or education. RESULTS: Adults with Medicaid perceived more discrimination due to race or skin color relative to those with employer-sponsored coverage. This association does not vary by race/ethnicity. Perceived discrimination due to 1) dissatisfaction with the health care system, 2) insurance status or type, and 3) barriers to communication were each associated with increased delays in getting needed medical care. CONCLUSIONS: Findings highlight potential insurance types and sources of care that could contribute to perceptions of being discriminated.

Cardiovascular disease behavioral risk factors among Latinos by citizenship and documentation status.

BACKGROUND: Studies have observed that recent Latino immigrants tend to have a physical health advantage compared to immigrants who have been in the US for many years or Latinos who are born in the United States. An explanation of this phenomenon is that recent immigrants have positive health behaviors that protect them from chronic disease risk. This study aims to determine if trends in positive cardiovascular disease (CVD) risk behaviors extend to Latino immigrants in California according to citizenship and documentation status. METHODS: We examined CVD behavioral risk factors by citizenship/documentation statuses among Latinos and non-Latino US-born whites in the 2011-2015 waves of the California Health Interview Survey. Adjusted multivariable logistic regressions estimated the odds for CVD behavioral risk factors, and analyses were stratified by sex. RESULTS: In adjusted analyses, using US-born Latinos as the reference group, undocumented Latino immigrants had the lowest odds of current smoking, binge drinking, and frequency of fast food consumption. There were no differences across the groups for fruit/vegetable intake and walking for leisure. Among those with high blood pressure, undocumented immigrants were least likely to be on medication. Undocumented immigrant women had better patterns of CVD behavioral risk factors on some measures compared with other Latino citizenship and documentation groups. CONCLUSIONS: This study observes that the healthy Latino immigrant advantage seems to apply to undocumented female immigrants, but it does not necessarily extend to undocumented male immigrants who had similar behavioral risk profiles to US-born Latinos.

Health Care Access and Utilization for Latino Youth in the United States: The Roles of Maternal Citizenship and Distress.

OBJECTIVES: We sought to determine the associations between maternal citizenship and health care access and utilization for US-born Latino youth and to determine whether maternal distress is a moderator of the associations. METHODS: Using 2010-2017 Integrated Public Use Microdata Series National Health Interview Survey data, multivariable logistic regressions were run to examine the associations among maternal citizenship and health care access and utilization for US-born Latino youth. Maternal citizenship and distress interactions were tested. RESULTS: Noncitizen mothers had higher odds of reporting uninsurance, lack of transportation for delaying care, and lower odds of health care utilization for their youth than citizen mothers. Compared with no distress, moderate and severe distress were positively associated with uninsurance, delayed medical care due to cost, lack of transportation, and having had an emergency department visit for their youth. Moderate distress was positively associated with youth having had a doctor's office visit. Noncitizen mothers with moderate distress were less likely to report their youth having had an emergency department visit than citizen mothers with moderate distress. Among severely distressed mothers, noncitizen mothers were more likely to report youth uninsurance and delayed care due to lack of transportation compared with citizen mothers. CONCLUSIONS: Health care access and utilization among US-born Latino youth are influenced by maternal citizenship and distress. Maternal distress moderates the associations among maternal citizenship and youth's health care access and use. Almost one-third of all US-born youth in the United States are Latino and current federal and state noninclusive immigration policies and anti-Latino immigrant rhetoric may exacerbate health care disparities.

Insurance Coverage and Health Care Utilization Among Asian Youth Before and After the Affordable Care Act.

OBJECTIVE: We examined changes in insurance coverage and health care utilization associated with the Affordable Care Act (ACA) among subgroups of Asian youth relative to non-Latino white youth. METHODS: Data were from the 2010 to 2017 American Community Survey and National Health Interview Survey. Difference-in-difference models were used to examine changes in insurance coverage and health care utilization associated with the ACA among subgroups of Asian youth relative to white youth and subgroups of Asian youth in households below 200% of the federal poverty level relative to comparable white youth. RESULTS: Since the implementation of the ACA, insurance coverage increased among all Asian subgroups and white youth. The magnitude of the increase in insurance coverage was larger among Asian subgroups than white youth. More pronounced increases were found among almost all Asian subgroups in households below 200% federal poverty level. Changes in health care utilization were limited and varied by subgroup. Increases in well-child visits were observed only among Chinese and "other" Asian youth. CONCLUSIONS: Insurance coverage increased among Asian youth after the implementation of the ACA. Improvements in health care utilization were limited and differed by subgroups. Programs to improve health care utilization should be tailored to Asian youth according to subgroup.