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AHRQ Research Studies
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Research Studies is a compilation of published research articles funded by AHRQ or authored by AHRQ researchers.
Results
26 to 50 of 576 Research Studies DisplayedZhu JM, Meiselbach MK, Drake C C
Psychiatrist networks In Medicare Advantage plans are substantially narrower than in Medicaid and ACA Markets.
The authors used a novel data set that linked insurance network service areas, plans, and providers across Medicare Advantage, Medicaid managed care, and Affordable Care Act plan markets to compare psychiatrist network breadth; their purpose was to assess the percentage of providers in a given area considered in network for a plan. They found that nearly two-thirds of psychiatrist networks in Medicare Advantage contained fewer than 25 percent of providers in a network's service area. They concluded that these findings suggest a certain “narrowness” in psychiatrist networks in Medicare Advantage, which may disadvantage enrollees attempted to obtain mental health services.
AHRQ-funded; HS000029.
Citation: Zhu JM, Meiselbach MK, Drake C C .
Psychiatrist networks In Medicare Advantage plans are substantially narrower than in Medicaid and ACA Markets.
Health Aff 2023 Jul; 42(7):909-18. doi: 10.1377/hlthaff.2022.01547..
Keywords: Elderly, Medicare, Behavioral Health, Access to Care
Arbaje AI, Woodman S, Keita Fakeye MB
Senior services in US hospitals and readmission risk or mortality among Medicare beneficiaries since the Affordable Care Act.
This study examined whether there was an association between readmission risk or mortality among Medicare beneficiaries and passage of the Affordable Care Act. The study updated the Senior Care Services Scale (SCSS) which describes hospital provision of older adult services before the passage of the Affordable Care Act. The authors conducted a retrospective cohort analysis of older adults ≥65 years (n = 1,416,669), admitted to 2570 US acute-care hospitals from 2014 to 2015. Outcomes were hospital readmission, or death, within 30 and 90 days of discharge. The updated SCSS included three service groups: Inpatient Specialty Care, Post-Acute Community Care, and Home Care and Hospice. Older adults admitted to high Inpatient-Specialty-Care-scoring hospitals had lower risk of death within 30 days, and 90 days. There was no significant association between the other two groups and study outcomes.
AHRQ-funded; HS022916.
Citation: Arbaje AI, Woodman S, Keita Fakeye MB .
Senior services in US hospitals and readmission risk or mortality among Medicare beneficiaries since the Affordable Care Act.
J Appl Gerontol 2023 Jul; 42(7):1424-32. doi: 10.1177/07334648231161925..
Keywords: Elderly, Hospitals, Hospital Readmissions, Medicare
Roberts ET, Mellor JM, McInerny MP
Effects of a Medicaid dental coverage "cliff" on dental care access among low-income Medicare beneficiaries.
Medicare beneficiaries with income levels slightly exceeding the thresholds of eligibility for Medicaid have few affordable options for dental coverage. This gap results in a dental coverage “cliff” above these thresholds. The purpose of this study was to assess how a sudden drop-off in dental coverage from Medicaid impacts access to dental care in low-income Medicare beneficiaries. The researchers studied low-income community resident Medicare recipients whose incomes were within approximately 75 percentage points of state-specific Medicaid income eligibility thresholds. The study found that Medicare beneficiaries whose income was higher than Medicaid eligibility thresholds were 5.0 percentage points more likely to report challenges accessing dental care because of cost concerns or a lack of insurance than beneficiaries below the thresholds.
AHRQ-funded; HS026727; HS025422.
Citation: Roberts ET, Mellor JM, McInerny MP .
Effects of a Medicaid dental coverage "cliff" on dental care access among low-income Medicare beneficiaries.
Health Serv Res 2023 Jun; 58(3):589-98. doi: 10.1111/1475-6773.13981..
Keywords: Dental and Oral Health, Medicaid, Medicare, Health Insurance, Access to Care
Trenaman L, Harrison M, Hoch JS
Medicare beneficiaries' perspectives on the quality of hospital care and their implications for value-based payment.
The objective of this study was to estimate the relative importance of the 4 quality domains in the Medicare's Hospital Value-Based Purchasing (HVBP) program from the perspective of Medicare beneficiaries and the impact of using beneficiary value weights on incentive payments for hospitals enrolled in FY 2019. A nationally representative sample of 1025 Medicare beneficiaries was recruited through Ipsos KnowledgePanel for an online survey. Hospital performance on clinical outcomes was most highly valued by beneficiaries, followed by safety, patient experience, and efficiency. The authors concluded that current HVBP program value weights do not reflect beneficiary preferences, suggesting that the use of beneficiary value weights may exacerbate disparities by rewarding larger, high-volume hospitals.
AHRQ-funded; HS027853.
Citation: Trenaman L, Harrison M, Hoch JS .
Medicare beneficiaries' perspectives on the quality of hospital care and their implications for value-based payment.
JAMA Netw Open 2023 Jun; 6(6):e2319047. doi: 10.1001/jamanetworkopen.2023.19047..
Keywords: Medicare, Inpatient Care, Hospitals
Temkin-Greener H, Mao Y, McGarry B
Online customer reviews of assisted living communities: association with community, county, and state factors.
The authors explored online reviews as a possible source of information about assisted living communities and examined the association between the reviews and aspects of state regulation. They found lower odds of positive reviews in communities with greater proportions of Medicare/Medicaid residents; communities in micropolitan areas and in states with more direct care worker hours had greater odds of a high rating. They concluded that online reviews are a promising source of information about important aspects of satisfaction, particularly in care settings.
AHRQ-funded; HS026893.
Citation: Temkin-Greener H, Mao Y, McGarry B .
Online customer reviews of assisted living communities: association with community, county, and state factors.
J Am Med Dir Assoc 2023 Jun; 24(6):841-45.e3. doi: 10.1016/j.jamda.2023.02.007..
Keywords: Elderly, Provider Performance, Long-Term Care, Medicare
Mao Y, Li Y, McGarry B
Are online reviews of assisted living communities associated with patient-centered outcomes?
The purpose of this study was to explore the relationship between assisted living (AL) online quality review ratings and AL residents' home time. The researchers identified Medicare beneficiaries who entered AL communities in 2018, with the main outcome of resident home time in the year after AL admission. Additional outcomes were the percentage of time spent in emergency room, inpatient hospital, nursing home, and inpatient hospice. The study sample included 59,831 residents in 12,143 ALs. AL online Google reviews for 2013-2017 were linked to 2018-2019 Medicare data. AL average rating score and rating status were generated using Google reviews. The study found that from 2013 to 2017, ALs received an average rating of 4.1 on Google, with a standard deviation of 1.1. Each one-unit increase in the AL's average online rating was associated with an increase in residents' risk-adjusted home time by 0.33 percentage points. Residents in high-rated ALs had a 0.64 pp increase in home time compared with residents in ALs without ratings. Thet study concluded that higher online rating scores were positively associated with residents' home time, and a lack of ratings was related with decreased home time.
AHRQ-funded; HS026893.
Citation: Mao Y, Li Y, McGarry B .
Are online reviews of assisted living communities associated with patient-centered outcomes?
J Am Geriatr Soc 2023 May; 71(5):1505-14. doi: 10.1111/jgs.18192..
Keywords: Elderly, Long-Term Care, Patient-Centered Healthcare, Nursing Homes, Provider Performance, Medicare, Medicaid
Lyu PF, Chernew ME, McWilliams JM
Benchmarking changes and selective participation in the Medicare shared savings program.
In 2017 the Medicare Shared Savings Program (MSSP) began including regional spending into accountable care organization (ACO) benchmarks, demonstrating a preference for the participation of those ACOs and practices with lower baseline spending than their region. The purpose of this study was to isolate changes in spending due to changes in the mix of ACOs and practices participating in the MSSP as a method for characterizing providers' responses to these incentives. After 2017, the composition of the MSSP increasingly shifted to providers with lower preexisting levels of spending relative to their region, consistent with a selection response. Changes took place through the entry of new ACOs with lower baseline spending, the exit of higher-spending ACOs, and the reconfiguration of participant lists favoring lower-spending practices within continuing ACOs. The study found that although compositional changes could not be clearly tied to changes in benchmarking, the disproportionate participation of providers with lower baseline spending suggests sizable costs and the need for reforms in ACO benchmarking.
AHRQ-funded; HS027531.
Citation: Lyu PF, Chernew ME, McWilliams JM .
Benchmarking changes and selective participation in the Medicare shared savings program.
Health Aff 2023 May; 42(5):622-31. doi: 10.1377/hlthaff.2022.01061..
Keywords: Medicare, Healthcare Costs
Jayadevappa R, Guzzo T, Vapiwala N
Continuity of care and advanced prostate cancer.
This study’s objective was to assess the association of provider continuity of care with outcomes among Medicare fee-for-service beneficiaries with advanced prostate cancer and its variation by race. This retrospective study used SEER-Medicare data of African American and white Medicare beneficiaries aged 66 or older and diagnosed with advanced prostate cancer between 2000 and 2011. The authors used at least 5 years of follow-up data. Short-term outcomes examined were emergency room (ER) visits, hospitalizations, and cost during acute survivorship phase (2-year post-diagnosis), and mortality (all-cause and prostate cancer-specific) during the follow-up period. They calculated continuity of care using Continuity of Care Index (COCI) and Usual Provider Care Index (UPCI), for all visits, oncology visits, and primary care visits in acute survivorship phase. They performed similar analysis for continuity of care in the 2-year period following acute survivorship phase. They found that a one unit increase in COCI was associated with reduction in short-term ER visits (incidence rate ratio [IRR] = 0.65), hospitalizations (IRR = 0.65), and cost (0.64) and lower hazard of long-term mortality. The benefits of higher continuity of care were greater for African Americans than white patients.
AHRQ-funded; HS024106.
Citation: Jayadevappa R, Guzzo T, Vapiwala N .
Continuity of care and advanced prostate cancer.
Cancer Med 2023 May; 12(10):11795-805. doi: 10.1002/cam4.5845..
Keywords: Cancer: Prostate Cancer, Cancer, Men's Health, Medicare
Alpert A, Lakdawalla D, Sood N
Prescription drug advertising and drug utilization: the role of Medicare Part D.
The purpose of this paper was to explore how direct-to-consumer advertising (DTCA) for prescription drugs affects use by leveraging a large and plausibly exogenous shock to DTCA influenced by the introduction of Medicare Part D. Part D led to greater increases in advertising in geographic areas with greater concentrations of Medicare beneficiaries. The researchers explored the effect of this increase in advertising on non-elderly individuals to separate the effects of advertising from the direct effects of Part D. The study found that exposure to advertising resulted in large increases in treatment initiation and improved adherence to medication. Advertising also had substantial positive spillover effects on non-advertised generic drugs.
AHRQ-funded; HS025983.
Citation: Alpert A, Lakdawalla D, Sood N .
Prescription drug advertising and drug utilization: the role of Medicare Part D.
J Public Econ 2023 May; 221. doi: 10.1016/j.jpubeco.2023.104860..
Keywords: Communication, Medication, Medicare
Bond AM, Dean EB, Desai SM
The role of financial incentives in biosimilar uptake in Medicare: Evidence from the 340b program.
This study’s goal was to investigate whether the 340B Drug Pricing Program, which offers eligible hospitals substantial discounts on drug purchases, inhibits biosimilar uptake. Almost one-third of eligible US hospitals participate in the program. The authors used regression discontinuity design and two high-volume biologics with biosimilar competitors, filgrastim and infliximab to estimate that 340B program eligibility was associated with a 22.9-percentage-point reduction in biosimilar adoption. Additionally, 340B program eligibility was associated with 13.3 more biologic administrations annually per hospital and $17,919 more biologic revenue per hospital. The effect was found to be that it inhibited biosimilar uptake, possibly because of financial incentives that make reference drugs more profitable than biosimilar medications.
AHRQ-funded; HS027531.
Citation: Bond AM, Dean EB, Desai SM .
The role of financial incentives in biosimilar uptake in Medicare: Evidence from the 340b program.
Health Aff 2023 May; 42(5):632-41. doi: 10.1377/hlthaff.2022.00812..
Keywords: Medicare, Medication, Healthcare Costs
Levin JS, Komanduri S, Whaley C
Association between hospital-physician vertical integration and medication adherence rates.
This study’s goal was to test the association between vertical integration of primary care providers (PCPs) and adherence rates for anti-diabetics, renin angiotensin system antagonists (RASA), and statins. Data was extracted from Medicare Part B outpatient fee-for-service claims and Medicare Part D event data from 2014 to 2017. There was a 23% increase in the proportion of patients who had a vertically integrated PCP during the study period. Changes in adherence did not differ significantly between patients based on whether their PCP became integrated. However, among patients with PCPs who become integrated, there were significant decreases in patients who were above 80 years old, were Black, Asian, Hispanic, or Native America, and had greater comorbidities for all three classes.
AHRQ-funded; HS024067.
Citation: Levin JS, Komanduri S, Whaley C .
Association between hospital-physician vertical integration and medication adherence rates.
Health Serv Res 2023 Apr; 58(2):356-64. doi: 10.1111/1475-6773.14090.
Keywords: Medication, Patient Adherence/Compliance, Medicare, Primary Care
Growdon ME, Gan S, Yaffe K
New psychotropic medication use among Medicare beneficiaries with dementia after hospital discharge.
Hospital stays often trigger behavioral shifts in people with dementia (PWD), potentially leading to the prescription of psychotropic drugs despite their limited effectiveness and potential for harmful side-effects. The purpose of this study was to ascertain the prevalence of new psychotropic drug prescriptions in PWD living in the community after their discharge from the hospital, and within these new users, the percentage who continued their use for an extended duration. The researchers conducted a retrospective cohort study, utilizing a random selection of Medicare claims from 2017. The study included PWD hospital patients who were 68 years or older and covered by traditional and Part D Medicare. The primary outcome was the event of prescribing at the time of discharge psychotropic drugs including antipsychotics, sedative-hypnotics, antiepileptics, and antidepressants. The initiation was characterized as new prescriptions (from classes not utilized in the 180 days preceding admission) filled within a week of discharge from the hospital or skilled nursing facility. Extended use was defined as the percentage of new users who continued to refill the newly prescribed medications for more than 90 days post-discharge. The study population consisted of 117,022 hospitalized PWD with an average age of 81 years, with 63% being female. The study found that prior to admission, 63% were already using at least one psychotropic drug; 10% were using drugs from three or more psychotropic classes. These classes included antidepressants (44% pre-admission), antiepileptics (29%), sedative-hypnotics (21%), and antipsychotics (11%). The percentage of PWD discharged with new psychotropic prescriptions ranged from 1.9% (antipsychotics) to 2.9% (antiepileptics); 6.6% had at least one new class initiated. Among these new users, prolonged use varied from 36% (sedative-hypnotics) to 63% (antidepressants); across drug classes, prolonged use was observed in 51%. Factors associated with the initiation of new psychotropics included duration of hospital stay and delirium.
AHRQ-funded; HS026383.
Citation: Growdon ME, Gan S, Yaffe K .
New psychotropic medication use among Medicare beneficiaries with dementia after hospital discharge.
J Am Geriatr Soc 2023 Apr; 71(4):1134-44. doi: 10.1111/jgs.18161..
Keywords: Elderly, Medication, Medicare, Dementia, Neurological Disorders, Hospitalization
Atherly A, Feldman R, van den Broek-Altenburg EM
Understanding factors associated with increases in Medicare Advantage enrollment, 2007-2018.
The purpose of this study was to explore the growth in the Medicare Advantage plan market share during a time period of dramatic increase. The authors investigated the factors behind the significant increase in market share of the Medicare Advantage (MA) program during a period where no structural changes were made. The study drew data from 2007-2018 and concluded that Medicare Advantage was becoming more preferred to more educated and nonminority beneficiaries compared to the past, with minority and lower-income beneficiaries also were more likely to choose the program.
AHRQ-funded; HS024281.
Citation: Atherly A, Feldman R, van den Broek-Altenburg EM .
Understanding factors associated with increases in Medicare Advantage enrollment, 2007-2018.
Am J Manag Care 2023 Apr; 29(4):e111-e16. doi: 10.37765/ajmc.2023.89351..
Keywords: Medicare, Access to Care, Health Insurance
Thorndike AL, Peterson L, Spitzer S
Advancing health equity through partnerships of state Medicaid agencies, Medicaid managed care organizations, and health care delivery organizations.
This article explored how multi-stakeholder teams operationalized the Roadmap to Advance Health Equity model during the early stages of its implementation. Semi-structured interviews were conducted with representatives from multi-stakeholder teams from state Medicaid agencies, Medicaid managed care organizations, and health care delivery organizations in seven US states about their experiences. The team representatives shared practical strategies for implementing the Roadmap to Advance Health Equity, which the authors believed could inform future efforts to build intra- and inter-organizational cultures of equity and integrate health equity into care delivery and payment systems.
AHRQ-funded; HS000084.
Citation: Thorndike AL, Peterson L, Spitzer S .
Advancing health equity through partnerships of state Medicaid agencies, Medicaid managed care organizations, and health care delivery organizations.
Front Public Health 2023 Mar 9;11:1104843. doi: 10.3389/fpubh.2023.1104843.
Keywords: Medicaid, Medicare, Healthcare Delivery
Temkin-Greener H, Mao Y, Li Y
Using Medicare enrollment data to identify beneficiaries in assisted living.
The authors developed an approach for identifying Medicare beneficiaries residing in US assisted living (AL) communities in 2018. Data sources included a national directory of licensed ALs, a file of US addresses and their associated 9-digit ZIP codes (ZIP+4), the Medicare Enrollment Database (EDB), the Master Beneficiary Summary File (MBSF), and the Minimum Data Set (MDS). The cohorts of beneficiaries identified as AL residents exhibited good construct validity; AL residents also showed similar demographic characteristics to the 2018 sample from the National Survey of Long-Term Care Providers. The authors concluded that, as this residential setting continues to grow, future studies will need effective approaches such as their proposed methodology for identifying Medicare beneficiaries who reside in AL facilities in order to evaluate the quality of care they receive.
AHRQ-funded; HS026893.
Citation: Temkin-Greener H, Mao Y, Li Y .
Using Medicare enrollment data to identify beneficiaries in assisted living.
J Am Med Dir Assoc 2023 Mar;24(3):277-83. doi: 10.1016/j.jamda.2022.01.062.
Keywords: Medicare, Nursing Homes, Research Methodologies
Kalata S, Howard R, Diaz A
Association of skilled nursing facility ownership by health care networks with utilization and spending.
The objective of this cross-sectional study was to determine the association of vertical integration of skilled nursing facilities (SNFs) within hospital networks with SNF utilization, readmissions, and spending. Claims data from Medicare beneficiaries aged 66 to 99 who had undergone elective hip replacement in nonfederal acute care hospitals during the study period was analyzed. Results showed that vertical SNF integration was associated with a higher rate of SNF utilization and a lower 30-day readmission rate; in spite of higher utilization, 30-day episode payments were slightly lower. Adjusted readmission rates were especially low for patients who were not sent to an SNF but were significantly higher for patients with a length of stay of less than 5 days. The authors concluded these findings support the value of integrating SNFs into hospital networks, but there is room for improvement in postoperative care early in the SNF patients’ stay.
AHRQ-funded; HS028606.
Citation: Kalata S, Howard R, Diaz A .
Association of skilled nursing facility ownership by health care networks with utilization and spending.
JAMA Netw Open 2023 Feb; 6(2):e230140. doi: 10.1001/jamanetworkopen.2023.0140..
Keywords: Nursing Homes, Healthcare Utilization, Healthcare Costs, Medicare
De Roo AC, Ha J, Regenbogen SE
Impact of Medicare eligibility on informal caregiving for surgery and stroke.
The purpose of this study was to assess whether the intensity of family and friend care changes after older individuals enroll in Medicare at 65. Researchers used Health and Retirement Study survey data covering a 20-year period to compare informal care received by patients who had been hospitalized for stroke, heart surgery, or joint surgery, and who were stratified into propensity-weighted pre- and post-Medicare eligibility cohorts. Their results showed that onset of Medicare eligibility was associated with a substantial decrease in family and friend caregiving use received by stroke patients, but not in the other acute care cohorts. They concluded that this effect of Medicare coverage on informal caregiving had implications for patient function and caregiver burden, and should be considered in episode-based reimbursement models that alter professional rehabilitative care intensity.
AHRQ-funded; HS000053.
Citation: De Roo AC, Ha J, Regenbogen SE .
Impact of Medicare eligibility on informal caregiving for surgery and stroke.
Health Serv Res 2023 Feb; 58(1):128-39. doi: 10.1111/1475-6773.14019..
Keywords: Medicare, Caregiving, Surgery, Stroke, Cardiovascular Conditions
Ko H, Martin BI, Nelson RE
How does the effect of the comprehensive Care for Joint Replacement model vary based on surgical volume and costs of care?
This article described differences in costs, quality, and patient selection between hospitals that continued to participate in the comprehensive Care for Joint Replacement (CJR) program after the CMS policy revision and those that withdrew from CJR before and after the implementation of CJR. Study subjects were Medicare beneficiaries who had undergone elective lower extremity joint replacement from 2013 to 2017. The results indicated that hospitals that continued to participate in CJR achieved a greater cost reduction. The authors noted that these the cost reductions were partly attributable to the avoidance of potential higher-cost patients.
AHRQ-funded; HS024714.
Citation: Ko H, Martin BI, Nelson RE .
How does the effect of the comprehensive Care for Joint Replacement model vary based on surgical volume and costs of care?
Med Care 2023 Jan;61(1):20-26. doi: 10.1097/mlr.0000000000001785..
Keywords: Orthopedics, Surgery, Healthcare Costs, Medicare, Payment
Collins CR, Abel MK, Shui A
Preparing for participation in the centers for Medicare and Medicaid Services' bundle care payment initiative-advanced for major bowel surgery.
This study aimed to assess where the largest opportunities for care improvement lay with the bundled payment reimbursement model and how best to identify patients at high risk of suffering costly complications, including hospital readmission. The authors used a cohort of patients from 2014 and 2016 who met inclusion criteria for the Major Bowel Bundled Payment Program and performed a cost analysis to identify opportunities for improved care efficiency. Using the results, they identified readmissions as a target for improvement and then assessed whether the American College of Surgeons' National Surgical Quality Improvement Program surgical risk calculator (ACS NSQIP SRC) could accurately identify patients within the bundled payment population who were at high risk of readmission using a logistic regression model. Patients who were readmitted within 90-days post-surgery were 2.53 times more likely to be high-cost (>$60,000) then non-readmitted patients. However, the ACS NSQIP SRC did not accurately predict patients at high risk of readmission within the first 30 days post-surgery.
AHRQ-funded; HS024532.
Citation: Collins CR, Abel MK, Shui A .
Preparing for participation in the centers for Medicare and Medicaid Services' bundle care payment initiative-advanced for major bowel surgery.
Perioper Med 2022 Dec 9;11(1):54. doi: 10.1186/s13741-022-00286-9..
Keywords: Provider Performance, Payment, Hospital Readmissions, Quality Improvement, Quality of Care, Surgery, Medicare, Medicaid
Liao JM, Huang Q, Wang E
Performance of physician groups and hospitals participating in bundled payments among Medicare beneficiaries.
This cohort study compared how physician group practices (PGPs) performed in bundled payments compared with hospitals. The authors used 2011 to 2018 Medicare claims data to compare the association of participants in the Bundled Payments for Care Improvement (BCPI) initiative with episode outcomes. Primary outcome was 90-day total episode spending. The total sampled comprised data from 1,288,781 Medicare beneficiaries, of whom mean age was 76.2 years, 59.7% women, and 85.5% White, with 592,071 individuals receiving care from 6405 physicians in in BPCI-participating PGPs and 24,758 propensity-matched physicians in non-BPCI-participating PGPs. For PGPs, BPCI participation was associated with greater reductions in episode spending for surgical (difference, -$1648 to -$1088) but not for medical episodes (difference, -$410 to $206). Hospital participation in BPCI was associated with greater reductions in episode spending for both surgical ($1345 to -$675) and medical -$1139 to -$386) episodes.
AHRQ-funded; HS027595.
Citation: Liao JM, Huang Q, Wang E .
Performance of physician groups and hospitals participating in bundled payments among Medicare beneficiaries.
JAMA Health Forum 2022 Dec 2; 3(12):e224889. doi: 10.1001/jamahealthforum.2022.4889..
Keywords: Provider Performance, Payment, Hospitals, Medicare, Quality of Care
Anderson TS, Marcantonio ER, McCarthy EP
Association of diagnosed dementia with post-discharge mortality and readmission among hospitalized Medicare beneficiaries.
The purpose of this retrospective cohort study was to examine whether patients with dementia have a higher risk of adverse outcomes post-discharge. The researchers included Medicare beneficiaries hospitalized in 2016 and evaluated the co-primary outcomes of mortality and readmission within 30 days of hospital discharge. The final cohort included 1,089,109 hospitalizations of which 19.3% were of patients with diagnosed dementia and 886,411 were of patients without dementia. The study found that at 30 days following discharge, 5.7% of patients with dementia had died compared to 3.1% of patients without dementia. At 30 days following discharge, 17.7% of patients with dementia had been readmitted compared to 13.1% of patients without dementia. Patients with dementia who were discharged to the community had an increased likelihood of being readmitted than those who were discharged to nursing facilities, and, when readmitted, had an increased likelihood of dying during the readmission. The study concluded that diagnosed dementia was related with a substantially increased risk of mortality and a modestly increased risk of readmission within 30 days of discharge.
AHRQ-funded; HS026215.
Citation: Anderson TS, Marcantonio ER, McCarthy EP .
Association of diagnosed dementia with post-discharge mortality and readmission among hospitalized Medicare beneficiaries.
J Gen Intern Med 2022 Dec;37(16):4062-70. doi: 10.1007/s11606-022-07549-7..
Keywords: Dementia, Neurological Disorders, Medicare, Elderly, Hospital Readmissions, Mortality
Likosky DS, Yang G, Zhang M
Interhospital variability in health care-associated infections and payments after durable ventricular assist device implant among Medicare beneficiaries.
The purpose of this study was to examine differences in durable ventricular assist device implantation infection rates and associated costs across hospitals. The researchers utilized clinical data for 8,688 patients who received primary durable ventricular assist devices from the Society of Thoracic Surgeons Interagency Registry for Mechanically Assisted Circulatory Support (Intermacs) hospitals (n = 120) and merged that data with post-implantation 90-day Medicare claims. The primary outcome included infections within 90 days of implantation and Medicare payments. The study found that 27.8% of patients developed 3982 identified infections. The median adjusted incidence of infections (per 100 patient-months) across hospitals was 14.3 and differed according to hospital. Total Medicare payments from implantation to 90 days were 9.0% more in high versus low infection tercile hospitals. The researchers concluded that health-care-associated infection rates post durable ventricular assist device implantation varied according to hospital and were associated with increased 90-day Medicare expenditures.
AHRQ-funded; HS026003.
Citation: Likosky DS, Yang G, Zhang M .
Interhospital variability in health care-associated infections and payments after durable ventricular assist device implant among Medicare beneficiaries.
J Thorac Cardiovasc Surg 2022 Nov;164(5):1561-68. doi: 10.1016/j.jtcvs.2021.04.074..
Keywords: Healthcare-Associated Infections (HAIs), Medical Devices, Medicare, Heart Disease and Health, Cardiovascular Conditions, Hospitals, Payment, Healthcare Costs
Chatterjee P, Liao JM, Wang E
Characteristics, utilization, and concentration of outpatient care for dual-eligible Medicare beneficiaries.
The purpose of this study was to describe the distribution of outpatient care for dual-eligible Medicare beneficiaries ("duals") and characterize the intensity of outpatient care utilization of duals vs non-dual-eligible beneficiaries ("nonduals"). The researchers assessed the distribution of outpatient care across physician practices and compared the use of different outpatient services between duals and nonduals. The study found that nearly 80% of outpatient visits for duals were provided by 35% of practices. Compared with low-dual and no-dual practices, high-dual practices served more patients, with morhe comorbidities. Duals had 2 less outpatient visits per year compared with nonduals with substantially fewer subspecialty care visits despite having more comorbidities.
AHRQ-funded; HS027595.
Citation: Chatterjee P, Liao JM, Wang E .
Characteristics, utilization, and concentration of outpatient care for dual-eligible Medicare beneficiaries.
Am J Manag Care 2022 Oct;28(10):e370-e77. doi: 10.37765/ajmc.2022.89189..
Keywords: Ambulatory Care and Surgery, Medicare, Medicaid, Care Management, Healthcare Utilization
Glynn A, Hernandez I, Roberts ET
Consequences of forgoing prescription drug subsidies among low-income Medicare beneficiaries with diabetes.
This study’s objective was to estimate the take-up of the Medicare Part D Low-Income Subsidy (LIS) among Medicare beneficiaries with diabetes and examine differences in out-of-pocket costs and prescription drug use between LIS enrollees and LIS-eligible non-enrollees. Data from the Health and Retirement Study linked to Medicare administrative data from 2008 to 2016 was used. The authors first estimated LIS take-up stratified by income (≤100% of the Federal Poverty Level [FPL] and >100% to ≤150% of FPL). Second, to assess the consequences of forgoing the LIS among near-poor beneficiaries (incomes >100% to ≤150% of FPL), they conducted propensity score-weighted regression analyses to compare out-of-pocket costs, prescription drug use, and cost-related medication non-adherence among LIS enrollees and LIS-eligible non-enrollees. Among Medicare beneficiaries with diabetes, 68.1% of those considered near-poor (incomes >100% to ≤150% of FPL) received the LIS, compared to 90.3% of those with incomes ≤100% of FPL. Among near-poor beneficiaries, LIS-eligible non-enrollees incurred higher annual out-of-pocket drug spending ($518], filled 7.3 fewer prescriptions for diabetes, hypertension, and hyperlipidemia drugs, and were 8.9 percentage points more likely to report skipping drugs due to cost. all compared to LIS enrollees.
AHRQ-funded; HS026727.
Citation: Glynn A, Hernandez I, Roberts ET .
Consequences of forgoing prescription drug subsidies among low-income Medicare beneficiaries with diabetes.
Health Serv Res 2022 Oct;57(5):1136-44. doi: 10.1111/1475-6773.13990..
Keywords: Medication, Diabetes, Chronic Conditions, Low-Income, Medicare, Healthcare Costs
Li J, Wu B, Flory J
Impact of the Affordable Care Act's Physician Payments Sunshine Act on branded statin prescribing.
The purpose of this study was to assess the impact of the Affordable Care Act's Physician Payments Sunshine Act (PPSA) and its mandate of disclosing pharmaceutical and medical industry payments to physicians for prescribing branded statins. The study found that the PPSA contributed to a 7% decrease in monthly new prescriptions of brand-name statins over the study period. There was no significant change in generic prescribing. The reduction was concentrated among physicians with the highest tercile of drug spending prior to the enactment of the PPSA, with a decrease of 15% in new branded statin prescriptions. The researchers concluded that the PPSA mandate reduced the prescribing of branded statin prescriptions in the time period following its announcement, especially in physicians who were taking part in excessive prescribing of the branded statins.
AHRQ-funded; HS027001.
Citation: Li J, Wu B, Flory J .
Impact of the Affordable Care Act's Physician Payments Sunshine Act on branded statin prescribing.
Health Serv Res 2022 Oct;57(5):1145-53. doi: 10.1111/1475-6773.14024..
Keywords: Payment, Policy, Medicare, Health Insurance