Informal care provided in US nursing homes: Reduced from 2010 to 2021 and lower for Medicaid residents.

BACKGROUND: Little is known about the trend of informal care (unpaid care provided by family or other caregivers) provided to nursing home residents before or during the COVID-19 pandemic. This study assessed this trend during 2010-2021, for all and Medicaid versus non-Medicaid residents. METHODS: Using data from the RAND Health and Retirement Study longitudinal file, our study sample included a total of 2025 resident-years (860 for Medicaid and 1165 for non-Medicaid residents). We fit two-part regression models to determine adjusted trends in average amount of informal care over time, and difference by resident Medicaid status. RESULTS: Informal care received by residents reduced substantially over time, from an average of 39.2 h in the past month of interview in 2010-11 to 23.2 h in 2018-19, and then to 11.2 h in the COVID-19 pandemic (2020-21). The reduced hours were due to both reduced percentages of nursing home residents who received any informal care and reduced hours of care among those who did receive it over time. Multivariable analyses confirmed this trend and similar downward trends for Medicaid versus non-Medicaid residents. Medicaid residents on average received 10.02 fewer hours of informal care per month (95% confidence interval -17.16, -2.87; p = 0.006) than non-Medicaid residents after adjustment for resident characteristics and time trends. CONCLUSION: Informal care provided to nursing home residents during 2010-2021 reduced over time, especially during the COVID-19 pandemic (2020-21). Medicaid residents tended to receive less informal care than non-Medicaid residents.

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.

Trends in forgone medical care and unmet needs among Medicare beneficiaries with a history of depression during the COVID-19 pandemic: a national, repeated cross-sectional study.

OBJECTIVES: To investigate trends in forgone medical care, basic needs disruption, financial and mental health disruption, engagement of preventive behaviours guidelines, and perceived severity of COVID-19 among community-living Medicare beneficiaries in the USA with and without a self-reported history of depression from Summer 2020 to Winter 2021. DESIGN/SETTING: A repeated cross-sectional study using a nationally representative sample of Medicare beneficiaries of three rounds of survey data from the Medicare Current Beneficiary Survey COVID-19 Supplement Public Use Files: Summer 2020, Fall 2020 and Winter 2021. PARTICIPANTS: A total of 28 480 community-dwelling Medicare beneficiaries. MAIN OUTCOME MEASURES: Forgone medical care, basic needs disruption, financial and mental health disruption, engagement of preventive behaviours guidelines, and perceived severity of COVID-19. RESULTS: In the study sample, 7629 (27%) had a history of depression. After adjusting for potential confounders, weighted multivariable logistic regression models showed that Medicare beneficiaries with a history of depression had higher odds of foregone medical care (OR: 1.29, 95% CI 1.16 to 1.42, p<0.001), of basic need disruption (OR: 1.49, 95% CI 1.33 to 1.67, p<0.001), and of financial and mental health disruption (OR: 1.75, 95% CI 1.60 to 1.91, p<0.001) during the COVID-19 pandemic when compared with those without a history of depression. No statistically significant differences were observed in engagement of essential preventive behaviours or perception of COVID-19 severity. CONCLUSIONS: COVID-19 pandemic may exacerbate existing barriers to healthcare access and financial and social needs, possibly leading to persistent unmet needs among Medicare beneficiaries with a history of depression beyond the pandemic.

Association of Sources of COVID-19 Information with Vaccine Uptake, Preventive Behaviors, and Perceived Severity of COVID-19.

OBJECTIVE: To investigate the association of using informal sources and reliance on multiple sources of information with actual COVID-19 vaccine uptake, the number of doses of vaccine received, COVID-19 testing, essential preventive measures, and perceived severity of COVID-19. DESIGN: Retrospective cross-sectional study. SETTING AND PARTICIPANTS: Our study sample consisted of 9584 community-dwelling Medicare beneficiaries, representing a weighted 50,029,030 beneficiaries from the Winter 2021 Medicare Current Beneficiary Survey COVID-19 Supplement. METHODS: Two key independent variables were whether a respondent relied on a formal source (ie, traditional news, government guidance, or health care providers) or an informal source (ie, social media, Internet, or friends/family) the most for the COVID-19 information and the total number of information sources a respondent relied on. RESULTS: Compared with beneficiaries relying on formal sources of information, those relying on informal sources of information were less likely to receive COVID-19 vaccine (odds ratio [OR], 0.65; 95% CI, 0.56-0.75) and COVID-19 testing (OR, 0.85; 95% CI, 0.74-0.98), to engage in preventive behaviors (OR, 0.61; 95% CI, 0.50-0.74), to have high perception of COVID-19 severity, and were more likely to be unvaccinated vs 2 doses of vaccine (relative risk ratio [RRR], 1.64; 95% CI, 1.41-1.91). Relying on more information sources was significantly associated with higher odds of actual vaccine uptake (OR, 1.21; 95% CI, 1.17-1.26), COVID-19 testing (OR, 1.11; 95% CI, 1.07-1.15), engagement of essential preventive behaviors (OR, 1.33; 95% CI, 1.25-1.42), having high perception of COVID-19 severity, and with lower likelihood of being unvaccinated vs 2 doses of vaccine (RRR, 0.82; 0.79-0.85). CONCLUSIONS AND IMPLICATIONS: The COVID-19 pandemic has made communicating information about coronavirus more important than ever. Our findings suggest that information from formal sources with expertise and more balanced sources of information were key to effective communication to prevent from COVID-19 infection among older adults.

Did Massachusetts COVID-19 vaccine lottery increase vaccine uptake?

OBJECTIVE: We evaluated whether the Massachusetts COVID-19 vaccine lottery increased vaccine uptake. METHODS: We analyzed data from the Centers for Disease Control and Prevention COVID-19 Vaccine Tracker to identify total number of adults aged 18 to 64 who received at least first dose of the COVID-19 vaccine or who were fully vaccinated in Massachusetts, Connecticut, Rhode Island, New Jersey, and Vermont during the study period of March 6 -July 31, 2021. Each of the five states contributed 148 days of a daily report on cumulative number of vaccinated people, comprising 740 state-days as the total sample size. We conducted multivariable, state-day level difference-in-differences (DID) regression using a negative binomial regression model that compared the change in outcomes for Massachusetts to those of four geographically adjacent comparison states without the lotteries, before and after the Massachusetts vaccine lottery announcement (June 15, 2021). Our analyses controlled for key state-level characteristics obtained from the American Community Survey as well as day fixed-effects to capture secular trends in the outcomes. RESULTS: Massachusetts COVID-19 vaccine lottery was not associated with a significant increase in the number of adults aged 18 to 64 who were fully vaccinated or received at least one dose of the vaccine, compared with other states [Full dose, incidence rate ratio (IRR): 1.04, 95% confidence interval (CI): 0.97 to 1.11, P > 0.05; At least one dose, IRR: 0.99, 95% CI: 0.93 to 1.06, P > 0.05]. CONCLUSIONS: There was insufficient evidence to conclude that Massachusetts COVID-19 vaccine lottery was associated with increased number of adult COVID-19 vaccinations.

Telehealth and Outpatient Visits Among Individuals with Chronic Conditions by Socioeconomic Status in the First Year of the COVID-19 Pandemic: Observational Cohort Study.

Objective: We investigated telehealth usage for individuals with chronic conditions by neighborhood-level socioeconomic status (SES) during the first year of the COVID-19 pandemic. Methods: We split the population of 2.3 million commercially insured adults in the United States with at least one chronic condition in claims into four quartiles of SES using address of residence. After balancing groups on baseline characteristics, we examined telehealth and total outpatient evaluation and management (E&M) visits from March 2020 to February 2021. Results: Quartile 4 (highest SES) had more telehealth visits per person (0.054-0.100 more visits over each 3-month period) and a higher percentage of visits that were telehealth (1.8-5.9 percentage points higher) than other quartiles. Quartile 4 had higher levels of total outpatient E&M use throughout the year. Differences in telehealth between Quartiles 1 and 3 were small. Conclusions: Commercially insured individuals in the highest SES quartile had higher use of telehealth and total E&M visits than other quartiles.

Post-Acute Care Use Associated with Medicare Shared Savings Program and Disparities.

OBJECTIVES: Medicare Shared Savings Program (MSSP) was implemented in 2012, but the impact of the MSSP on institutional post-acute care (PAC) use, and by race/ethnicity and payer status is less studied. We studied the impact of hospital participation in the MSSP on institutional PAC use and variations by race/ethnicity and payer status among 3 Medicare patient groups: ischemic stroke, hip fracture, and elective total joint arthroplasty (TJA). DESIGN: A retrospective analysis of 2010-2016 Medicare Provider Analysis and Review files. SETTING AND PARTICIPANTS: Medicare fee-for-service patients originally admitted for ischemic stroke, hip fracture, or elective TJA in MSSP-participating hospitals or nonparticipating hospitals. METHODS: Patient-level linear probability models with difference-in-differences approach were used to compare the changes in institutional PAC use in MSSP-participating hospitals with nonparticipating hospitals as well as to compare the changes in differences by race/ethnicity and payer status in institutional PAC use over time. RESULTS: Hospital participation in MSSP was significantly associated with increased institutional PAC use for the ischemic stroke cohort by 1.5 percentage points [95% confidence interval (CI) 0.00-0.3, P < .05] compared with non-MSSP participating hospitals. Regarding variations by race/ethnicity and payer status, for the elective TJA patients, racial minority patients in MSSP-participating hospitals had 3.8 percentage points greater (95% CI 0.01-0.06, P < .01) in institutional PAC use than white patients. Also, for ischemic stroke cohort, dual-eligible patients in MSSP-participating hospitals had 2.0 percentage points greater (95% CI 0.00-0.04, P < .10) in institutional PAC use than Medicare-only patients. CONCLUSIONS AND IMPLICATIONS: This study found that hospital participation in the MSSP was associated with slightly increased institutional PAC use for ischemic stroke Medicare patients. Also, compared to non-MSSP participating hospitals, MSSP-participating hospitals were more likely to discharge racial minority patients for elective TJA and dual-eligible patients for ischemic stroke to institutional PAC.

The Impact of the COVID-19 Pandemic on Health Care Utilization Among Insured Individuals With Common Chronic Conditions.

OBJECTIVE: The COVID pandemic has had a significant impact on the US health care system. Our primary objective was to understand the impact of the COVID pandemic on non-COVID-related health care utilization among insured individuals with chronic conditions. Our secondary objective was to examine the differential impact by individual characteristics. MAIN DATA SOURCE: Medical and pharmacy claims data for individuals enrolled in a large insurer across the United States. RESEARCH DESIGN: A retrospective and repeated cross-sectional study. Overall and condition-specific health care utilization and cost metrics in (1) March 1 to June 15 and (2) June 16 to September 30, 2020 were compared with the same months during 2016-2019. SUBJECTS: Members of all ages with a diagnosis of diabetes, cardiovascular disease, or chronic kidney disease with commercial or Medicare Advantage insurance. RESULTS: Most non-COVID-related health care utilization decreased drastically on March 1 to June 15, 2020 [odds ratio (OR) range across condition-specific tests: 0.55-0.69; incidence rate ratio (IRR) range for hospitalization/emergency department (ED) visit/outpatient visit: 0.65-0.77] but returned to closer to pre-COVID levels by June 16 to September 30, 2020 [OR range across condition-specific tests: 0.93-1.08; IRR range for hospitalization/ED visit/outpatient visit: 0.77-0.97]. Our study found an enormous increase in telehealth use on March 1 to June 15, 2020 (90-170 times prepandemic levels). A differential impact was observed by age, sex, region of residence, and insurance type. IMPLICATIONS: Further investigation is needed to assess the impact of these changes in health care utilization on long-term health outcomes.

Medicare Accountable Care Organizations: Post-acute Care Use and Post-surgical Outcomes in Urologic Cancer Surgery.

OBJECTIVE: To evaluate association between Medicare accountable care organizations (ACOs) participation of hospitals on post-acute care (PAC) use and spending, and post-surgical outcomes in Medicare beneficiaries undergoing urologic cancer surgeries. Despite increasing prevalence of urologic cancer and surgical care contributing to a large proportion of total health care costs, and recent Medicare payment reforms such as accountable care organizations, the role of ACOs in urologic cancer care has been unexplored. METHODS: We conducted a longitudinal analysis of 2011-2017 Medicare claims data to compare post-surgical outcomes between Medicare ACO and non-ACO patients before and after implementation of Medicare shared savings program (MSSP). Our outcomes of interest were Post-acute care (PAC) use (overall, institutional, and home health), Skilled Nursing Facility (SNF) length of stay and Medicare spending for SNF patients, 30-day and 90-day unplanned readmissions and complications after index procedure. RESULTS: Study sample included a total of 334,514 Medicare patients undergoing bladder, prostate, kidney cancer surgeries at 524 Medicare ACO and 2066 non-ACO hospitals. For bladder cancer surgery, Medicare ACO participation was associated with significantly reduced overall post-acute care use, but not with changes in readmission or complication rate. For prostate cancer and kidney cancer surgery, we found no significant association between hospital participation in Medicare ACOs and PAC use or post-surgical outcomes. CONCLUSION: Hospital participation in MSSP ACOs leads to lower post-acute care use without compromising patient outcomes for Medicare beneficiaries undergoing bladder cancer surgery. Future research is needed to understand longer-term impact of ACO participation on urologic cancer surgery outcomes.

Pain and the Alzheimer's Disease and Related Dementia Spectrum in Community-Dwelling Older Americans: A Nationally Representative Study.

CONTEXT: Pain is a significant concern among older adults with Alzheimer's disease and related dementias (ADRD). OBJECTIVES: Examine the association between cognitive impairment across the ADRD spectrum and pain assessment and treatment in community-dwelling older Americans. METHODS: This cross-sectional, population-based study included 16,836 community-dwelling participants ≥ 50 years in the 2018 Health and Retirement Study. ADRD, assessed by validated cognitive measures, was categorized into "dementia," "cognitive impairment, no dementia (CIND)" and "intact cognition." Pain assessment included pain presence (often being troubled with pain), pain severity (degree of pain most of the time [mild/moderate/severe]), and pain interference (pain making it difficult to do usual activities). Pain treatment included recent use of over-the-counter pain medications and opioids (past 3 months), and regular intake of prescriptions for pain. RESULTS: Dementia were associated with lower likelihood of reporting pain presence (Odds Ratio [OR]= 0.61, P = 0.01), pain interference (OR = 0.46, P < 0.001), reporting lower pain severity (e.g., moderate vs. no: Relative Risk Ratio = 0.38, P < 0.001), and lower likelihood of receiving pain treatment, that is, recent use of over-the-counter pain medications (OR = 0.60, P = 0.02) and opioids (OR = 0.33, P < 0.001), and regular intake of prescriptions for pain (OR = 0.461, P = 0.002). CIND was associated with reporting lower pain severity (e.g., moderate vs. no: Relative Risk Ratio = 0.75, P = 0.021), lower likelihood of reporting pain interference (OR = 0.79, P = 0.045) and recent over-the-counter pain medication use (OR = 0.74, P = 0.026). CONCLUSION: CIND and dementia increased the risk of under-report and under-treatment of pain. Systematic efforts are needed to improve pain recognition and treatment among older adults with cognitive impairment, regardless of dementia diagnosis.

Association of the Comprehensive Care for Joint Replacement Model With Disparities in the Use of Total Hip and Total Knee Replacement.

Importance: The Comprehensive Care for Joint Replacement (CJR) model is Medicare's mandatory bundled payment reform to improve quality and spending for beneficiaries who need total hip replacement (THR) or total knee replacement (TKR), yet it does not account for sociodemographic risk factors such as race/ethnicity and income. Results of this study could be the basis for a Medicare payment reform that addresses inequities in joint replacement care. Objective: To examine the association of the CJR model with racial/ethnic and socioeconomic disparities in the use of elective THR and TKR among older Medicare beneficiaries after accounting for the population of patients who were at risk or eligible for these surgical procedures. Design, Setting, and Participants: This cohort study used the 2013 to 2017 national Medicare data and multivariable logistic regressions with triple-differences estimation. Medicare beneficiaries who were aged 65 to 99 years, entitled to Medicare, alive at the end of the calendar year, and residing either in the 67 metropolitan statistical areas (MSAs) mandated to participate in the CJR model or in the 104 control MSAs were identified. A subset of Medicare beneficiaries with a diagnosis of arthritis underwent THR or TKR. Data were analyzed from March to December 2020. Exposures: Implementation of the CJR model in 2016. Main Outcomes and Measures: Outcomes were separate binary indicators for whether a beneficiary underwent THR or TKR. Key independent variables were MSA treatment status, pre- or post-CJR model implementation phase, combination of race/ethnicity (non-Hispanic White, non-Hispanic Black, and Hispanic beneficiaries) and dual eligibility, and their interactions. Logistic regression models were used to control for patient characteristics, MSA fixed effects, and time trends. Results: The 2013 cohort included 4 447 205 Medicare beneficiaries, of which 2 025 357 (45.5%) resided in MSAs with the CJR model. The cohort's mean (SD) age was 77.18 (7.95) years, and it was composed of 2 951 140 female (66.4%), 3 928 432 non-Hispanic White (88.3%), and 657 073 dually eligible (14.8%) beneficiaries. Before the CJR model implementation, rates were highest among non-Hispanic White non-dual-eligible beneficiaries at 1.25% (95% CI, 1.24%-1.26%) for THR use and 2.28% (95% CI, 2.26%-2.29%) for TKR use in MSAs with CJR model. Compared with MSAs without the CJR model and the analogous race/ethnicity and dual-eligibility group, the CJR model was associated with a 0.10 (95% CI, 0.05-0.15; P < .001) percentage-point increase in TKR use for non-Hispanic White non-dual-eligible beneficiaries, a 0.11 (95% CI, 0.004-0.21; P = .04) percentage-point increase for non-Hispanic White dual-eligible beneficiaries, a 0.15 (95% CI, -0.29 to -0.01; P = .04) percentage-point decrease for non-Hispanic Black non-dual-eligible beneficiaries, and a 0.18 (95% CI, -0.34 to -0.01; P = .03) percentage-point decrease for non-Hispanic Black dual-eligible beneficiaries. These CJR model-associated changes in TKR use were 0.25 (95% CI, -0.40 to -0.10; P = .001) percentage points lower for non-Hispanic Black non-dual-eligible beneficiaries and 0.27 (95% CI, -0.45 to -0.10; P = .002) percentage points lower for non-Hispanic Black dual-eligible beneficiaries compared with the model-associated changes for non-Hispanic White non-dual-eligible beneficiaries. No association was found between the CJR model and a widening of the THR use gap among race/ethnicity and dual eligibility groups. Conclusions and Relevance: Results of this study indicate that the CJR model was associated with a modest increase in the already substantial difference in TKR use among non-Hispanic Black vs non-Hispanic White beneficiaries; no difference was found for THR. These findings support the widespread concern that payment reform has the potential to exacerbate disparities in access to joint replacement care.

Institutional Postacute Care Use May Help Reduce Readmissions for Ischemic Stroke Patients.

OBJECTIVES: Readmissions for Medicare patients initially admitted for stroke are common and costly. Rehabilitation in an institutional postacute care (PAC) setting is an evidence-based component of recovery for stroke. Under current Medicare payment reforms, care coordination across hospitals and PAC providers is key to improving quality and efficiency of care. We examined the causal impact of institutional PAC use on 30-day readmission rates for Medicare fee-for-service patients initially admitted for ischemic stroke. DATA SOURCES: The 2010-2016 Medicare Provider Analysis and Review files. RESEARCH DESIGN: We used the method of instrumental variable (IV) analysis to control for unobserved differences in the types of patients admitted to each PAC facility. We chose the distance from the patient's residence to the closest institutional PAC provider and the number of PAC providers of each type within a county where the patient resides as IVs. PRINCIPAL FINDINGS: In the naive model, an increase in institutional PAC use was significantly associated with an increase in 30-day readmission by 0.03 percentage points. However, using IV analysis to control for endogeneity bias, an increase in institutional PAC use was associated with a decrease in 30-day readmission rate by 0.19 percentage points. Our findings indicate that reducing institutional PAC use among patients typically requiring rehabilitation in institutional settings for recovery may potentially lead to adverse postdischarge outcomes that require rehospitalization. Thus, payment incentives to reduce institutional PAC use should be balanced with postdischarge outcomes among ischemic stroke patients.

The Effect of Medicare Shared Savings Program on Readmissions and Variations by Race/Ethnicity and Payer Status (December 9, 2020).

OBJECTIVE: Accountable care organizations in the Medicare Shared Savings Program (MSSP) in the United States attempt to reduce cost and improve quality for their patients by improving care coordination across care settings. We examined the impact of hospital participation in the MSSP on 30-day readmissions for several groups of Medicare inpatients, and by race/ethnicity and payer status. MAIN DATA SOURCE: A 2010-2016 Medicare Provider Analysis and Review files. RESEARCH DESIGN: With propensity score matched sample of MSSP and non-MSSP-participating hospitals, patient-level linear probability models with difference-in-differences approach were used to compare the changes in readmission rates for Medicare fee-for-service patients initially admitted for ischemic stroke, hip fracture, or total joint arthroplasty in MSSP-participating hospitals with non-MSSP-participating hospitals as well as to compare the changes in disparities in readmission rates over time. PRINCIPAL FINDINGS: Hospital participation in MSSP was associated with further reduced readmission rate by 1.1 percentage points (95% confidence interval: -0.02 to 0.00, P<0.05) and 1.5 percentage points (95% confidence interval: -0.03 to 0.00, P=0.08) for ischemic stroke and hip fracture cohorts, respectively, compared with non-MSSP-participating hospitals, after the third year of hospital participation in the MSSP. There was no evidence that MSSP had an impact on racial/ethnic disparities, but increased disparity by payer status (dual vs. Medicare-only) was observed. These findings together suggest that MSSP accountable care organizations may take at least 3 years to achieve reduced readmissions and may increase disparities by payer status.

Geographic Variation and Disparities in Total Joint Replacement Use for Medicare Beneficiaries: 2009 to 2017.

BACKGROUND: Little is known about how the geographic variation and disparities in use of elective primary total hip and knee replacements for Medicare beneficiaries have evolved in recent years. The study objectives are to determine these variations and disparities, whether Black Medicare beneficiaries have continued to undergo fewer total hip replacements and total knee replacements across regions, and whether disparities affected all Black beneficiaries or mainly affected socioeconomically disadvantaged Black beneficiaries. METHODS: We used 2009 to 2017 Medicare enrollment and claims data to examine Hospital Referral Region (HRR)-level variation and disparities by race (non-Hispanic White and Black) and socioeconomic status (Medicare-only and dual eligibility for both Medicare and Medicaid). The outcomes were HRR-level age and sex-standardized total hip replacement and total knee replacement utilization rates for White Medicare-only beneficiaries, White dual-eligible beneficiaries, Black Medicare-only beneficiaries, and Black dual-eligible beneficiaries, and the differences in rates between these groups as a representation of disparities. The key exposure variables were race-socioeconomic group and year. We constructed multilevel mixed-effects linear regression models to estimate trends in total hip replacement and total knee replacement rates and to examine whether rates were lower in HRRs with high percentages of Black beneficiaries or dual-eligible beneficiaries. RESULTS: The study included 924,844 total hip replacements and 2,075,968 total knee replacements. In 2017, the mean HRR-level total hip replacement rate was 4.64 surgical procedures per 1,000 beneficiaries, and the mean HRR-level total knee replacement rate was 9.66 surgical procedures per 1,000 beneficiaries, with a threefold variation across HRRs. In 2017, the total hip replacement rate was 32% higher for White Medicare-only beneficiaries and 48% higher for Black Medicare-only beneficiaries than in 2009 (p < 0.001). However, because the surgical rates for White and Black dual-eligible beneficiaries remained unchanged over the study period, the 2017 Medicare-only and dual-eligible disparity for White beneficiaries increased by 0.75 surgical procedures per 1,000 from 2009 (40.98% increase; p = 0.03), and the disparity for Black beneficiaries by 1.13 surgical procedures per 1,000 beneficiaries (297.37% increase; p < 0.001). The total knee replacement disparities remained unchanged. Notably, the rates for White dual-eligible beneficiaries were significantly lower than those for Black Medicare-only beneficiaries (p < 0.001 for both total hip replacements and total knee replacements), and fewer surgical procedures were conducted in HRRs with a higher density of Black or dual-eligible beneficiaries. CONCLUSIONS: Although the total hip replacement use for Medicare-only beneficiaries of both races increased, disparities for White and Black dual-eligible beneficiaries (compared with their Medicare-only counterparts) are increasing. Efforts to improve equity must identify and address both racial and socioeconomic barriers and focus on regions with high concentrations of disadvantaged beneficiaries. CLINICAL RELEVANCE: Although total hip replacements and total knee replacements are highly successful surgical procedures for end-stage osteoarthritis, our findings show that, as recently as 2017, Black beneficiaries and those dual eligible for Medicaid (a proxy for socioeconomic status) are less likely to undergo these surgical procedures and that there is profound geographic variation in the use of these surgical procedures. This evidence is essential for the design and implementation of disparity-reduction strategies focused on patients, providers, and geographic areas that can potentially improve the equity in joint replacement care.

Medicare Shared Savings Program and readmission rate among patients with ischemic stroke.

OBJECTIVE: Hospitals participating in the Medicare Shared Savings Program (MSSP) share with the Centers for Medicare and Medicaid Services (CMS) the savings generated by reduced cost of care. Our aim was to determine whether MSSP is associated with changes in readmissions and mortality for Medicare patients hospitalized with ischemic stroke, and whether MSSP has a different impact on safety net hospitals (SNHs) compared to non-SNHs. METHODS: This study was based on the CMS Hospital Compare data for risk-standardized 30-day readmission and mortality rates for Medicare patients hospitalized with ischemic strokes between 2010 and 2017. With a propensity score-matched sample, hospital-level difference-in-difference analysis was used to determine whether MSSP was associated with changes in hospital readmission and mortality as well as to examine the impact of MSSP on SNHs compared to non-SNHs. RESULTS: MSSP-participating hospitals had slightly greater reductions in readmission rates compared to matched nonparticipating hospitals (difference, 0.25 percentage points; 95% confidence interval [CI], -0.42 to -0.08). Mortality rates decreased among all hospitals, but mortality reduction was not significantly different between MSSP-participating hospitals and matched hospitals (difference, 0.06 percentage points; 95% CI, -0.28 to 0.17). Prior to MSSP, readmission rates in SNHs were higher compared to non-SNHs, but MSSP did not have significantly different impact on hospital readmission and mortality rates for SNHs and non-SNHs. CONCLUSION: MSSP led to slightly fewer readmissions without increases in mortality for Medicare patients hospitalized with ischemic stroke. Similar reductions in readmission rates were observed in SNHs and non-SNHs participating in MSSP, indicating persistent gaps between SNHs and non-SNHs.

Trends in Postacute Care Use and Outcomes After Hip and Knee Replacements in Dual-Eligible Medicare and Medicaid Beneficiaries, 2013-2016.

Importance: Several Medicare alternative payment models were implemented in recent years, but their implications for socioeconomic gaps in postacute care (PAC) are unknown. Objectives: To determine the longitudinal trends in PAC use and outcomes after hip and knee replacements and in gaps among 3 groups: Medicare-only patients, dual-eligible patients with full Medicaid benefits, and dual-eligible patients with partial Medicaid benefits. Design, Setting, and Participants: A cohort study was conducted of PAC use and outcomes among Medicare fee-for-service patients undergoing hip or knee replacement surgery from January 1, 2013, to December 31, 2016, in approximately 3000 hospitals, using Medicare claims, assessment, hospital, and skilled nursing facility (SNF) files. Statistical analysis was performed from October 1, 2018, to December 17, 2019. Main Outcomes and Measures: Risk-adjusted differences among dual-eligible groups in institutional PAC use (SNF, inpatient rehabilitation, or long-term hospital care), readmission rate, and payment for readmissions; for patients discharged to a SNF, risk-adjusted differences in SNF quality measured by star ratings, proportion successfully discharged to the community, proportion transitioned to long-stay residence, and SNF length of stay and payments. Results: The sample included 1 302 256 patients (837 256 women [64.3%]; mean [SD] age, 75.4 [7.2] years) who underwent joint replacement. The proportion of patients discharged to institutional PAC and the 30-day and 90-day readmission rates decreased for all 3 groups during the period from 2013 to 2016. In 2013, institutional PAC use was 43.7% (95% CI, 43.5%-43.9%) for Medicare-only patients (n = 1 182 555), 70.1% (95% CI, 69.4%-70.8%; n = 60 461) for dual-eligible patients with full benefits, and 70.3% (95% CI, 69.6%-71.0%; n = 59 240) for dual-eligible patients with partial benefits; in 2016, the rates decreased to 32.5% (95% CI, 32.4%-32.7%) for Medicare-only patients, 62.3% (95% CI, 61.5%-63.0%) for dual-eligible patients with full benefits, and 61.5% (95% CI, 60.7%-62.3%) for dual-eligible patients with partial benefits. Among patients discharged to SNFs, outcomes remained flat over time. For example, the proportion of patients successfully discharged to the community remained at 80.5% (95% CI, 80.4%-80.7%) for Medicare-only patients, 59.8% (95% CI, 59.3%-60.3%) for dual-eligible patients with full benefits, and 50.0% (95% CI, 49.4%-50.5%) for dual-eligible patients with partial benefits. Multivariable analyses with adjustment for patient, hospital (or SNF), and geographical covariates suggested maintained or enlarged gaps in all outcomes. Conclusions and Relevance: This study suggests that, during the period from 2013 to 2016, Medicare patients undergoing hip or knee replacement showed reduced institutional PAC use, reduced readmissions, and, among those discharged to SNFs, roughly unchanged outcomes. However, dual-eligible patients, especially those with partial Medicaid benefits, had persistently worse outcomes than Medicare-only patients.

Greater Reductions in Readmission Rates Achieved by Urban Hospitals Participating in the Medicare Shared Savings Program.

BACKGROUND: Accountable Care Organizations in the Medicare Shared Savings Program (MSSP) have financial incentives to reduce the cost and improve the quality of care delivered to Medicare beneficiaries that they serve. However, previous research about the impact of the MSSP on readmissions is limited and mixed. OBJECTIVE: To examine the association between hospital participation in the MSSP during the 2012-2013 period and reductions in 30-day risk-standardized readmission rates for Medicare patients initially admitted for acute myocardial infarction, heart failure (HF), pneumonia, or any cause. RESEARCH DESIGN: Difference-in-differences estimation to compare the change in readmission rates for hospitals participating in the MSSP with that of other hospitals. SUBJECTS: Acute care hospitals that either participated in the MSSP or did not participate in any of Medicare Accountable Care Organization programs (for acute myocardial infarction, n=1631; for HF, n=1889; for pneumonia, n=1896; for any cause, n=2067). RESULTS: Compared with nonparticipating hospitals, MSSP-participating hospitals showed greater reductions in readmission rates for Medicare patients originally admitted for HF by 0.47 percentage points [95% confidence interval (CI), -0.76 to -0.17] and for pneumonia by 0.26 percentage points (95% CI, -0.49 to -0.03). MSSP-participating hospitals also showed more reductions in hospital-wide all-cause readmission by 0.10 percentage points (95% CI, -0.20 to 0.01), relative to nonparticipating hospitals during the first year of MSSP. CONCLUSIONS: MSSP-participating hospitals showed slightly greater reductions in readmissions during postimplementation years for Medicare patients initially admitted for HF or pneumonia, compared with other hospitals.