Variation in Trust in Cancer Information Sources by Perceptions of Social Media Health Mis- and Disinformation and by Race and Ethnicity Among Adults in the United States: Cross-Sectional Study.

BACKGROUND: Mis- and disinformation on social media have become widespread, which can lead to a lack of trust in health information sources and, in turn, lead to negative health outcomes. Moreover, the effect of mis- and disinformation on trust in information sources may vary by racial and ethnic minoritized populations. OBJECTIVE: We evaluated how trust in multiple sources of cancer information varied by perceptions of health mis- and disinformation on social media and by race and ethnicity. METHODS: Cross-sectional, nationally representative survey data from noninstitutionalized adults in the United States from the 2022 Health Information National Trends Survey 6 (HINTS 6) were analyzed (N=4137). The dependent variable measured the level of trust in cancer information sources. The independent variables were perceptions about health mis- and disinformation on social media and race and ethnicity. Multivariable logistic regression models were adjusted for survey weight and design, age, birth gender, race and ethnicity, marital status, urban/rural designation, education, employment status, feelings about household income, frequency of social media visits, and personal and family history of cancer. We also tested the interaction effect between perceptions of social media health mis- and disinformation and participants' self-reported race and ethnicity. RESULTS: Perception of "a lot of" health mis- and disinformation on social media, relative to perception of "less than a lot," was associated with a lower likelihood of high levels of trusting cancer information from government health agencies (odds ratio [OR] 0.60, 95% CI 0.47-0.77), family or friends (OR 0.56, 95% CI 0.44-0.71), charitable organizations (OR 0.78, 95% CI 0.63-0.96), and religious organizations and leaders (OR 0.64, 95% CI 0.52-0.79). Among White participants, those who perceived a lot of health mis- and disinformation on social media were less likely to have high trust in cancer information from government health agencies (margin=61%, 95% CI 57%-66%) and family or friends (margin=49%, 95% CI 43%-55%) compared to those who perceived less than a lot of health mis- and disinformation on social media. Among Black participants, those who perceived a lot of health mis- and disinformation on social media were less likely to have high trust in cancer information from religious organizations and leaders (margin=20%, 95% CI 10%-30%) compared to participants who perceived no or a little health mis- and disinformation on social media. CONCLUSIONS: Certain sources of cancer information may need enhanced support against the threat of mis- and disinformation, such as government health agencies, charitable organizations, religious organizations and leaders, and family or friends. Moreover, interventions should partner with racial and ethnically minoritized populations that are more likely to have low trust in certain cancer information sources associated with mis- and disinformation on social media.

Financial Hardship Among Traditional Medicare and Medicare Advantage Enrollees With and Without Food Insecurity.

BACKGROUND: Compared to traditional Medicare (TM), Medicare Advantage (MA) plans impose out-of-pocket cost limits and offer extra benefits, potentially providing financial relief for MA enrollees, especially for those with food insecurity. OBJECTIVE: To examine whether the prevalence of food insecurity differs between TM and MA enrollees at baseline and then examine whether MA enrollment in a baseline year is associated with less financial hardships in the following year, relative to TM enrollment, especially for those experiencing food insecurity. DESIGN: We conducted a retrospective longitudinal cohort study. PARTICIPANTS: Our analysis included 2807 Medicare beneficiaries (weighted sample size, 23,963,947) who maintained continuous enrollment in either TM or MA in both 2020 and 2021 from the Medical Expenditure Panel Survey. MAIN MEASURES: We assessed outcomes related to financial hardships in health care and non-health care domains (measured in 2021). Our primary independent variables were food insecurity and MA enrollment (measured in 2020). RESULTS: The point estimate of food insecurity prevalence was greater among MA enrollees than TM enrollees, but the difference was not statistically significant (1.1 percentage points [95% CI, - 1.0, 3.4]). Furthermore, there is evidence that compared to TM enrollment, MA enrollment did not mitigate the risk of financial hardship, particularly for food-insecure enrollees. Rather, food-secure MA enrollees faced greater financial hardship in the following year than food-secure TM enrollees (11.2% [8.9-13.6] and 7.6% [6.9-8.3] for problems paying medical bills and 5.5% [4.6-6.4] and 2.8% [2.1-3.6] for paying medical bills over time). Moreover, the point estimate of financial hardship was higher among food-insecure MA enrollees than food-insecure TM enrollees (21.5% [5.4-37.5] and 11.2% [4.1-18.4] and 23.7% [9.6-37.9] and 6.9% [0.5-13.3]) despite the lack of statistical significance. CONCLUSION: These findings suggest that the promise of financial protection offered by MA plans has not been fully realized, particularly for those with food insecurity.

Trend in Respite Use by Race Among Caregivers for People Living with Dementia.

BACKGROUND: Respite care provides short-term relief for caregivers. Despite efforts to promote respite use among Black caregivers, little is known if disparities in respite use between Black and White dementia caregivers have decreased over time. We examined a trend nationally to see if more recent efforts may have helped reduce disparities in respite use. METHODS: We used a repeated cross-sectional design, with the data from 2015, 2017, and 2021 of the National Health and Aging Trends Study and National Study of Caregiving. Our study sample included 764 (in 2015), 839 (in 2017) and 521 (in 2021) non-Hispanic White and Black caregivers who provided care to older adults living with dementia, representing weighted 5,157,569 (2015), 5,877,997 (2017), and 4,712,144 (2021) dementia caregivers nationally. We conducted logistic regression models to assess the differences in respite use between White and Black caregivers over time. RESULTS: In 2015, Black dementia caregivers had a respite care use rate 11.6 percentage points (95% CI: -16.9 to -6.4) lower than that of White dementia caregivers. However, both in 2017 and 2021, the difference in the use of respite was not statistically significant, leading to a reduced or no gap in respite use between White and Black dementia caregivers. However, respite use remained low in both groups. CONCLUSIONS: Although the gap in respite use between Black and White dementia caregivers had been gradually narrowed over time, more efforts are needed to encourage more respite use among both groups through targeted efforts to address factors that hinder respite use.

The effect of Medicare eligibility on diagnosis of chronic conditions.

OBJECTIVES: The near-universal access to Medicare coverage at age 65 years improves access to care. However, little is known about whether Medicare eligibility promotes the diagnosis of chronic diseases. We examined the effects of Medicare eligibility at age 65 years on the diagnosis of chronic conditions. STUDY DESIGN: Using data from the 2007-2019 Medical Expenditure Panel Survey, we employed a regression discontinuity design. METHODS: Our sample includes 43,620 individuals aged 59 to 71 years. Our primary outcomes were diagnoses of 19 chronic conditions. Using a regression discontinuity design, we exploited the discontinuity in eligibility for Medicare at age 65 years and compared individuals just before and after age 65 years. RESULTS: Medicare eligibility at age 65 years led to significant increases in having any coverage or Medicare coverage: 8.8 percentage points (95% CI, 8.4-9.2) and 78.1 percentage points (95% CI, 74.9-81.4), respectively. However, there were no or small changes in the diagnosis of chronic conditions at age 65 years. Specifically, there were no significant changes in the diagnoses of 17 chronic conditions, and the changes were minor in magnitude. Significant changes were observed only in the diagnosis of stroke and cancer, at -0.6 percentage points (95% CI, -1.0 to -0.2) and -1.7 percentage points (95% CI, -2.8 to -0.6), respectively. CONCLUSIONS: Our findings suggest that Medicare coverage did not necessarily lead to increased diagnosis of chronic conditions. Further research is necessary to explore the underlying mechanisms behind this observation.

Social Isolation, Loneliness, and Quality of Life Among Food-Insecure Adults.

INTRODUCTION: Food insecurity is associated with adverse health outcomes, but may also have a detrimental effect on social relationships, potentially exacerbating social isolation and loneliness, and consequently affecting health-related quality of life. This study examined the associations of food insecurity with social isolation, loneliness, and health-related quality of life among U.S. adults. METHODS: A retrospective cohort study was conducted using panel data from the 2020-2021 Medical Expenditure Panel Survey. Regression models were used to assess the associations of food insecurity in 1 year with the outcomes of interest in the subsequent year while adjusting for baseline individual-level characteristics. Analysis was conducted in December 2023. RESULTS: Experiencing food insecurity in 2020 was significantly associated with increased reports of social isolation (3.1 percentage points [95% CI: 1.2-5.1]) and loneliness (9.7 percentage points [95% CI: 1.0-18.3]) in 2021. Additionally, food insecurity in 2020 was significantly associated with lower self-reported good mental health (-2.9 percentage points [95% CI: -5.1, -0.6]) and mental component summary score from the Short Form-12 Health Survey (-3.3 points [95% CI -3.8, -2.9]) in 2021. However, there were no or small associations with physical health-related quality of life. CONCLUSIONS: Food insecurity is associated with worse social and mental well-being among U.S. adults. This suggests that food insecurity interventions should not focus too narrowly on nutrition, but instead give holistic consideration to the multiple ways food insecurity harms health-not only via lower quality diets, but through worse mental health and impairing the ability to participate in social life.

Health Care Spending, Use, and Financial Hardship Among Traditional Medicare and Medicare Advantage Enrollees With Mental Health Symptoms.

OBJECTIVE: We examined the differences in health care spending and utilization, and financial hardship between Traditional Medicare (TM) and Medicare Advantage (MA) enrollees with mental health symptoms. DESIGN: Cross-sectional study. PARTICIPANTS: We identified Medicare beneficiaries with mental health symptoms using the Patient Health Questionnaire-2 and the Kessler-6 Psychological Distress Scale in the 2015-2021 Medical Expenditure Panel Survey. MEASUREMENTS: Outcomes included health care spending and utilization (both general and mental health services), and financial hardship. The primary independent variable was MA enrollment. RESULTS: MA enrollees with mental health symptoms were 2.3 percentage points (95% CI: -3.4, -1.2; relative difference: 16.1%) less likely to have specialty mental health visits than TM enrollees with mental health symptoms. There were no significant differences in total health care spending, but annual out-of-pocket spending was $292 (95% CI: 152-432; 18.2%) higher among MA enrollees with mental health symptoms than TM enrollees with mental health symptoms. Additionally, MA enrollees with mental health symptoms were 5.0 (95% CI: 2.9-7.2; 22.3%) and 2.5 percentage points (95% CI: 0.8-4.2; 20.9%) more likely to have difficulty paying medical bills over time and to experience high financial burden than TM enrollees with mental health symptoms. CONCLUSION: Our findings suggest that MA enrollees with mental health symptoms were more likely to experience limited access to mental health services and high financial hardship compared to TM enrollees with mental health symptoms. There is a need to develop policies aimed at improving access to mental health services while reducing financial burden for MA enrollees.

Determinants and effectiveness of annual wellness visits among Medicare beneficiaries in 2020.

BACKGROUND: Annual wellness visits (AWVs) have the potential to improve general health and well-being, but little is known about the role of AWVs during the COVID-19 pandemic. OBJECTIVE: We examined the determinants and effectiveness of having an AWV among Medicare beneficiaries in 2020. METHODS: We employed a cross-sectional study design using data from the 2020 Medicare Current Beneficiary Survey. Our outcomes included AWV utilization, preventive care utilization, health status, and care satisfaction. To examine the determinants for having an AWV, we performed a linear regression model and explored the associations with other individual-level variables (demographic, socioeconomic, and health characteristics). To examine the effectiveness of having an AWV, we performed a linear regression model on each outcome measure while adjusting for individual-level variables. RESULTS: We found that there were several determinants of having an AWV. The four most notable determinants were having a usual source of care, enrolling in Medicare Advantage, being non-Hispanic Black, and being Hispanic. We also found that having an AWV was associated with increases in preventive care use (COVID vaccine, flu shot, pneumonia shot, and blood pressure measurement), but was limited in improving health status and care satisfaction. CONCLUSION: Our finding raises critical concerns about inequitable access to health care services for disease prevention and health promotion during the pandemic. Furthermore, the effectiveness of AWVs was mostly in increased preventive care use, suggesting a limited role in meeting the wellness needs of a diverse population of older adults.

Spousal multimorbidity and depressive symptoms among older Indian couples: Do one's own health status and sex matter?

With the aging population, increases in non-communicable diseases that require chronic management pose a substantial economic and social burden to individuals with multimorbid conditions and their spousal caregivers. However, little is known about the crossover effect of spousal multimorbidity on mental health outcomes in the context of low- and middle-income countries, and whether it depends on one's own health status and sex. We examined the association between spousal multimorbidity and depressive symptoms using data on 6,158 older couples (12,316 individuals aged 60 years or above) from the Longitudinal Aging Study in India (LASI) 2017-18. Overall, 23.4% of the sample were multimorbid and 27.0% reported having depressive symptoms in the past week. Multivariable logistic regression models showed that spousal multimorbidity was associated with depressive symptoms, even after accounting for one's own multimorbidity status (OR: 1.23; 95% CI: 1.06-1.44). However, this association varied by sex. Among males, their own multimorbidity status was associated with 60% higher odds of having depressive symptoms (OR: 1.60; 95% CI: 1.28-2.00), but spousal multimorbidity was not. Furthermore, for males, the association between spousal multimorbidity and depressive symptoms was contingent upon the presence of their own multimorbidity. Among females, spousal multimorbidity was significantly associated with depressive symptoms, regardless of their own multimorbidity status. Our findings indicate that interventions to promote healthy aging should expand the formal caregiving system and consider family-based approaches to minimize the crossover health consequences of chronic morbidity in conjugal relationships, especially for females.

Adverse Consequences of Food Insecurity Among U.S. Adults Beyond Health Outcomes.

INTRODUCTION: Food insecurity is associated with poorer health, but the adverse consequences of food insecurity may extend beyond just health outcomes. Thus, this study examined the association between food insecurity and health insurance coverage, access to care, healthcare utilization, and financial hardships among U.S. adults. METHODS: This study employed a retrospective longitudinal cohort study design using panel data from the 2016-2017 Medical Expenditure Panel Survey. Linear probability models were used to examine the association between food insecurity in 1 year and outcomes of interest (health insurance coverage, access to care, healthcare utilization, and financial hardships) in the subsequent year. Analysis was conducted in April 2023. RESULTS: Food insecurity was associated with higher uninsured rates and lower private coverage rates (3.5 [95% CI: 1.6-5.5] and -3.9 [95% CI: -6.2, -1.7] percentage points). Moreover, food insecurity was associated with lower access to care, including delay in receiving necessary medical care and delay in obtaining necessary prescription drugs (2.9 [95% CI: 1.0-4.8] and 4.1 [95% CI: 2.1-6.2]). Furthermore, food insecurity was associated with a higher rate of emergency room visits (2.8 [95% CI: 0.1-5.7]), whereas associations with inpatient, outpatient, and prescription drug use were not significant. Food insecurity was also associated with greater financial hardships, such as experiencing difficulties paying medical bills (9.6 [95% CI: 6.7-12.6]). CONCLUSIONS: These findings highlight the adverse consequences of food insecurity on access to and affordability of care for U.S. adults and families. Food insecurity can have far-reaching implications for the well-being of individuals and families.

Trusting information on cancer varies by source of information and political viewpoint.

PURPOSE: This study investigated how trusting information on cancer varies by the source of information and political viewpoint. METHODS: This study used cross-sectional survey data from the 2020 Health Information National Trends Survey (HINTS). The study comprised a sample of 2949 adults 18 years and older. The outcome variable was measured by assessing respondents' trust in cancer-related information from various sources, including religious organizations and leaders, government health agencies, charitable organizations, family or friends, and doctors. Political viewpoint was measured as liberal, moderate, and conservative. Multivariate linear probability models were estimated and adjusted for individual-level characteristics. RESULTS: Multivariate analysis found that conservatives (73%, 95% CI = 68-78%) were significantly less likely to trust information on cancer from government health agencies compared to liberals (84%, 95% CI = 80-88%). There was no statistically significant difference in trusting government health agencies between liberals and moderates (80%, 95% CI = 76-84%). Both moderates (27%, 95% CI = 21-34%) and conservatives (34%, 95% CI = 29-39%) were more likely to trust information on cancer from religious organizations and leaders compared to liberals (19%, 95% CI = 13-24%). The relationship between political viewpoint and trust of doctors, family or friends, and charitable organizations were not statistically significant. CONCLUSION: Compared to liberals, conservatives are more likely to trust information on cancer from religious organizations and leaders and less likely to trust government health agencies when adjusting for other covariates. This finding emphasizes the role of political viewpoint in shaping individuals' perceptions of information sources and cancer-related information.

Unmet need for medical care among Medicare beneficiaries by health insurance literacy and disability.

BACKGROUND: Navigating the US healthcare system requires considerable health insurance literacy, especially for adults with disabilities. Limited health insurance literacy may lead to suboptimal treatment, leading to unmet need for medical care. OBJECTIVE: We examined whether unmet need for medical care among Medicare beneficiaries differs by health insurance literacy and disability status. METHODS: Using data from the 2010-2019 Medicare Current Beneficiary Survey, we identified 48,989 Medicare beneficiaries, including those in traditional Medicare and Medicare Advantage. Our outcomes were three measures of unmet need for medical care. Our key independent variables were health insurance literacy and disability status. For each outcome, we estimated the adjusted rates of reporting unmet need for medical care by health insurance literacy and disability while controlling for individual-level characteristics. RESULTS: Unmet need for medical care was higher among Medicare beneficiaries with disabilities across all outcomes, but the highest rates were among those with disabilities and limited health insurance literacy (27.4% [95% CI: 24.9-29.9] for experiencing delayed care, 17.7% [95% CI: 15.6-19.9] for experiencing trouble in getting needed care, and 20.8% [95% CI: 18.5-23.1] for not seeing a doctor despite medical need). Notably, there was an increasing trend in experiencing delayed care and trouble getting needed care among Medicare beneficiaries with disabilities over time, especially for those with limited health insurance literacy. CONCLUSIONS: Medicare beneficiaries with disabilities and limited health insurance literacy face disproportionate unmet need for medical care. Policies are needed to ensure that these beneficiaries have access to clear and accessible health insurance information.

Medicare Advantage enrollment by immigration and English proficiency status.

OBJECTIVES: Complex Medicare Advantage (MA) health plan choices may overwhelm immigrants, especially for those facing decision-making constraints due to limited English proficiency (LEP). We examined the trends and patterns of MA enrollment by immigration and English proficiency status. STUDY DESIGN: We employed a cross-sectional design using data from the 2008-2019 Medical Expenditure Panel Survey. METHODS: Our outcome was enrollment in an MA plan. Our primary independent variables were immigration and English proficiency status. We categorized the sample into 3 groups: LEP immigrants, non-LEP immigrants, and US-born residents. After adjusting for individual-level characteristics, we estimated the adjusted rates of MA enrollment for each group. RESULTS: Our adjusted analysis showed that MA enrollment was higher among immigrants than US-born residents, but the highest enrollment was found among LEP immigrants (LEP immigrants: 45.5%; 95% CI, 42.7%-48.2%; non-LEP immigrants: 42.1%; 95% CI, 39.4%-44.8%; US-born residents: 35.1%; 95% CI, 34.5%-35.6%). MA enrollment was higher among LEP immigrants with better health status (good self-reported health: 45.4%; 95% CI, 41.9%-48.8%; poor self-reported health: 41.4%; 95% CI, 37.7%-45.1%). However, we found small to no differences in the adjusted rates of MA enrollment between those with good vs poor self-reported health in both the non-LEP immigrants and US-born residents groups. We found no consistent enrollment patterns by socioeconomic status such as race/ethnicity, education, and income. CONCLUSIONS: Our findings suggest higher MA enrollment among immigrants, especially for LEP immigrants. Future research should study the care experience of immigrants in MA.

Characteristics and Health Care Spending of Persistently and Transiently High-cost Older Adults in Korea.

OBJECTIVES: This study examined differences in health care spending and characteristics among older adults in Korea by high-cost status (persistently, transiently, and never high-cost). METHODS: We identified 1 364 119 older adults using data from the Korean National Insurance Claims Database for 2017-2019. Outcomes included average annual total health care spending and high-cost status for 2017-2019. Linear regression was used to estimate differences in the outcomes while adjusting for individual-level characteristics. RESULTS: Persistently and transiently high-cost older adults had higher health care spending than never high-cost older adults, but the difference in health care spending was greater among persistently high-cost older adults than among transiently high-cost older adults (US$20 437 vs. 5486). Despite demographic and socioeconomic differences between transiently high-cost and never high-cost older adults, the presence of comorbid conditions remained the most significant factor. However, there were no or small differences in the prevalence of comorbid conditions between persistently high-cost and transiently high-cost older adults. Rather, notable differences were observed in socioeconomic status, including disability and receipt of Medical Aid. CONCLUSIONS: Medical risk factors contribute to high health care spending to some extent, but social risk factors may be a source of persistent high-cost status among older adults in Korea.

Proton radiotherapy as a treatment strategy to increase survival in locally advanced pancreatic cancer in the body and tail: a retrospective study.

BACKGROUND: Long-term outcomes and prognostic factors of proton radiotherapy for locally advanced pancreatic cancer (LAPC) in the body and tail are still unknown. The aim of this study was to determine the prognostic factors after proton radiotherapy in a large group of patients with LAPC in the body and tail. METHODS: The medical records of 200 patients with LAPC in the body and tail who underwent proton radiotherapy between February 2009 and January 2021 at the Hyogo Ion Beam Medical Center were retrospectively reviewed to identify prognostic factors that contribute to long-term survival. RESULTS: The overall survival rate at 1- and 2-year after PT was 69.6% and 35.4% with a median overall survival of 18.4 months. The 1- and 2-year local progression-free, and progression-free survival rates were 84.3% and 68.0%, and 44.3% and 19.4%, respectively. In multivariate analysis, superior mesenteric artery (SMA) invasion (SMA only invasion vs. celiac artery only invasion; P = 0.049: SMA and celiac artery invasion vs. celiac artery only invasion; P = 0.017), carbohydrate antigen 19-9 (CA 19-9) level ≥ 231.9 U/mL (P = 0.001), anterior peripancreatic invasion (P = 0.006), and incomplete scheduled concurrent chemotherapy (P = 0.009) were statistically significant prognostic factors for overall survival. There was no significant difference in local progression-free survival; however, distant metastasis-free survival was statistically worse in patients with prognostic factors than in those without. CONCLUSIONS: Proton radiotherapy for LAPC in the body and tail may be a valuable multidisciplinary treatment option. Patients with SMA invasion, higher pre-proton radiotherapy serum CA 19-9 level, anterior peripancreatic invasion, or incomplete scheduled concurrent chemotherapy had worse overall survival because of worse distant metastasis-free survival, suggesting that distant metastases have a significant impact on overall survival in such patients. TRIAL REGISTRATION: Retrospectively registered.

Use of high- and low-value care among US adults by education levels.

BACKGROUND: Healthcare reform in the United States has focused on improving the value of health care, but there are some concerns about the inequitable delivery of value-based care. OBJECTIVE: We examine whether the receipt of high- and low-value care differs by education levels. METHODS: We employed a repeated cross-sectional study design using data from the 2010-2019 Medical Expenditure Panel Survey. Our outcomes included 8 high-value services across 3 categories and 9 low-value services across 3 categories. Our primary independent variable was education level: (i) no degree, (ii) high school diploma, and (iii) college graduate. We conducted a linear probability model while adjusting for individual-level characteristics and estimated the adjusted values of the outcomes for each education group. RESULTS: In almost all services, the use of high-value care was greater among more educated adults than less educated adults. Compared to those with no degree, those with a college degree were significantly more likely to receive all high-value services except for HbA1c measurement, ranging from blood pressure measurement (4.5 percentage points [95% CI: 3.9-5.1]) to colorectal cancer screening (15.6 percentage points [95% CI: 13.9-17.3]). However, there were no consistent patterns of the use of low-value care by education levels. CONCLUSION: Our findings suggest that more educated adults were more likely to receive high-value cancer screening, high-value diagnostic and preventive testing, and high-value diabetes care than less educated adults. These findings highlight the importance of implementing tailored policies to address education-based inequities in the delivery of high-value services in the United States.

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.

Unmet Need for Medical Care Among Fee-for-Service Medicare Beneficiaries with High and Low Need.

BACKGROUND: Unmet need for medical care is common among Medicare beneficiaries, but less is known whether unmet need differs between those with high and low levels of need. OBJECTIVE: To examine unmet need for medical care among fee-for-service (FFS) Medicare beneficiaries by level of care need. DESIGN, SETTING, AND PARTICIPANTS: We included 29,123 FFS Medicare beneficiaries from the 2010-2016 Medicare Current Beneficiary Survey. MAIN MEASURES: Our outcomes included three measures of unmet need for medical care. We also examined the reasons for not obtaining needed medical care. Our primary independent variable was a categorization of groups by levels of care need: those with low need (the relatively healthy and those with simple chronic conditions) and those with high need (those with minor complex chronic conditions, those with major complex chronic conditions, the frail, and the non-elderly disabled). RESULTS: The rates of reporting unmet need for medical care were highest among the non-elderly disabled (23.5% [95% CI: 19.8-27.3] for not seeing a doctor despite medical need, 23.8% [95% CI: 20.0-27.6] for experiencing delayed care, and 12.9% [95% CI: 10.2-15.6] for experiencing trouble in getting needed care). However, the rates of reporting unmet need were relatively low among the other groups (ranging from 3.1 to 9.9% for not seeing a doctor despite medical need, from 3.4 to 5.9% for experiencing delayed care, and from 1.9 to 2.9% for experiencing trouble in getting needed care). The most common reason for not seeing a doctor despite medical need was concerns about high costs for the non-elderly disabled (24%), but perception that the issue was not too serious was the most common reason for the other groups. CONCLUSIONS AND RELEVANCE: Our findings suggest the need for targeted policy interventions to address unmet need for non-elderly disabled FFS Medicare beneficiaries, especially for improving affordability of care.