National Healthcare Quality and Disparities Report
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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 50 Research Studies DisplayedHassmiller Lich K, O'Leary MC, Nambiar S
Estimating the impact of insurance expansion on colorectal cancer and related costs in North Carolina: a population-level simulation analysis.
Researchers used microsimulation to estimate the health and financial effects of insurance expansion and reduction scenarios in North Carolina (NC) for colorectal cancer screening (CRC). The full lifetime of a simulated population of residents age-eligible for CRC screening (aged 50-75) during a 5-year period were simulated. Findings indicate that the estimated cost savings--balancing increased CRC screening/testing costs against decreased cancer treatment costs--were approximately $30 M and $970 M for Medicaid expansion and Medicare-for-all scenarios, respectively, compared to status quo. The researchers concluded that insurance expansion will likely improve CRC screening both overall and in underserved populations while saving money, with the largest savings realized by Medicare.
AHRQ-funded; HS022981.
Citation: Hassmiller Lich K, O'Leary MC, Nambiar S .
Estimating the impact of insurance expansion on colorectal cancer and related costs in North Carolina: a population-level simulation analysis.
Prev Med 2019 Dec;129s:105847. doi: 10.1016/j.ypmed.2019.105847..
Keywords: Health Insurance, Cancer: Colorectal Cancer, Cancer, Healthcare Costs, Screening, Prevention, Medicaid, Medicare, Policy, Access to Care
Roberts ET, Mellor JM, McInerney M
State variation in the characteristics of Medicare-Medicaid dual enrollees: Implications for risk adjustment.
The purpose of this study was to examine between-state differences in the socioeconomic and health characteristics of Medicare beneficiaries dually enrolled in Medicaid, focusing on characteristics not observable to or used by policy makers for risk adjustment. The investigators concluded that characteristics of dual enrollees differed substantially across states, reflecting differences in states' low-income Medicare populations and Medicaid policies.
AHRQ-funded; HS026727; HS025422.
Citation: Roberts ET, Mellor JM, McInerney M .
State variation in the characteristics of Medicare-Medicaid dual enrollees: Implications for risk adjustment.
Health Serv Res 2019 Dec;54(6):1233-45. doi: 10.1111/1475-6773.13205..
Keywords: Medicare, Medicaid, Social Determinants of Health
Keohane LM, Trivedi A, Mor V
States with medically needy pathways: differences in long-term and temporary Medicaid entry for low-income Medicare beneficiaries.
Between January 2009 and June 2010, states with medically needy pathways had a higher percentage of low-income beneficiaries join Medicaid than states without such programs. However, among new full Medicaid participants, living in a state with a medically needy pathway was associated with an increase in the probability of switching to partial Medicaid and an increase in the probability of exiting Medicaid within 12 months. Alternative strategies for protecting low-income Medicare beneficiaries' access to care could provide more stable coverage.
AHRQ-funded; HS023016.
Citation: Keohane LM, Trivedi A, Mor V .
States with medically needy pathways: differences in long-term and temporary Medicaid entry for low-income Medicare beneficiaries.
Med Care Res Rev 2019 Dec;76(6):711-35. doi: 10.1177/1077558717737152..
Keywords: Vulnerable Populations, Low-Income, Medicaid, Medicare, Policy
Childrers CP, Dworsky JQ, Kominski G
A comparison of payments to a for-profit dialysis firm from government and commercial insurers.
The authors assessed differences in payments from government and commercial insurers to dialysis clinics through analysis of DaVita’s financial records. They found that, in 2017, commercial insurers paid one of the largest dialysis suppliers 4 times the rate of their government peers. They recommended that reducing payments from commercial insurers, perhaps through increased competition or fixing charges at a percent of Medicare reimbursement, may help alleviate excess spending on dialysis.
AHRQ-funded; HS025079.
Citation: Childrers CP, Dworsky JQ, Kominski G .
A comparison of payments to a for-profit dialysis firm from government and commercial insurers.
JAMA Intern Med 2019 Aug;179(8):1136-38. doi: 10.1001/jamainternmed.2019.0431..
Keywords: Payment, Health Insurance, Kidney Disease and Health, Medicare, Medicaid
Rasmussen PW, Kominski GF
Sources of success in California's individual marketplace under the Affordable Care Act.
When passed in 2010, the Affordable Care Act (ACA) became the greatest piece of health care reform in the United States since the creation of Medicare and Medicaid. In the 9 years since its passage, the law has ushered in a drastic decrease in the number of uninsured Americans and has encouraged delivery system innovation. Although, the ACA has not been uniformly embraced, California has been a leader. In this paper, the authors discuss sources of success in California's individual marketplace under the Affordable Care Act.
AHRQ-funded; HS000046.
Citation: Rasmussen PW, Kominski GF .
Sources of success in California's individual marketplace under the Affordable Care Act.
J Health Polit Policy Law 2019 Aug 1;44(4):679-706. doi: 10.1215/03616878-7530849..
Keywords: Policy, Health Insurance, Uninsured, Medicaid, Medicare
Gorges RJ, Sanghavi P, Konetzka RT
A national examination of long-term care setting, outcomes, and disparities among elderly dual eligibles.
The authors investigated the outcomes of expanding Medicaid funding for long-term care home and community-based services (HCBS). Using national Medicaid claims data on older adults enrolled in both Medicare and Medicaid, they found that overall hospitalization rates were similar for HCBS and nursing facility users. They concluded that home and community-based services need to be carefully targeted to avoid adverse outcomes and that the racial/ethnic disparities in access to high-quality institutional long-term care are also present in HCBS.
AHRQ-funded; HS000084.
Citation: Gorges RJ, Sanghavi P, Konetzka RT .
A national examination of long-term care setting, outcomes, and disparities among elderly dual eligibles.
Health Aff 2019 Jul;38(7):1110-18. doi: 10.1377/hlthaff.2018.05409..
Keywords: Elderly, Medicaid, Medicare, Long-Term Care, Home Healthcare, Disparities, Racial and Ethnic Minorities
Roberts ET, Hayley Welsh J, Donohue JM
Association of state policies with Medicaid disenrollment among low-income Medicare beneficiaries.
This study examined the role that state policies play in Medicaid disenrollment among low-income Medicare beneficiaries. Medicaid disenrollment among fee-for-service Medicare beneficiaries was examined for the period 2012-2016. During that period, 18.2% of beneficiaries disenrolled for reasons other than death. Disenrollment was 24% lower in states that automatically enrolled recipients of the Supplemental Security Income program in full Medicaid, 33% lower in states with more generous provider payment policies, and 37% lower in states with less restrictive asset limits for partial Medicaid.
AHRQ-funded; HS026727.
Citation: Roberts ET, Hayley Welsh J, Donohue JM .
Association of state policies with Medicaid disenrollment among low-income Medicare beneficiaries.
Health Aff 2019 Jul;38(7):1153-62. doi: 10.1377/hlthaff.2018.05165..
Keywords: Medicare, Medicaid, Low-Income, Policy, Vulnerable Populations
Khandelwal N, White L, Curtis JR
Health insurance and out-of-pocket costs in the last year of life among decedents utilizing the ICU.
The objective of this study was to estimate out-of-pocket costs in the last year of life for individuals who required intensive care in the months prior to death and to examine how these costs vary by insurance coverage. Results showed that, across all categories of insurance coverage, out-of-pocket spending in the last 12 months of life was high and represented a significant portion of assets for many patients requiring intensive care and their families. Medicare fee-for-service alone did not insulate individuals from the financial burden of high-intensity care. Medicaid was found to provide the most complete hospital coverage of all the insurance groups, as well as significantly financing long-term care.
AHRQ-funded; HS022982.
Citation: Khandelwal N, White L, Curtis JR .
Health insurance and out-of-pocket costs in the last year of life among decedents utilizing the ICU.
Crit Care Med 2019 Jun;47(6):749-56. doi: 10.1097/ccm.0000000000003723..
Keywords: Critical Care, Elderly, Health Insurance, Healthcare Costs, Intensive Care Unit (ICU), Medicaid, Medicare
Weech-Maldonado R, Lord J, Pradhan R
High Medicaid nursing homes: organizational and market factors associated with financial performance.
The purpose of this study was to examine the organizational and market factors that may be associated with better financial performance among high Medicaid nursing homes. Data sources included Long-Term Care Focus (LTCFocus), Centers for Medicare and Medicaid Services' (CMS) Medicare Cost Reports, CMS Nursing Home Compare, and the Area Health Resource File (AHRF) for 2009-2015. Higher financial performing facilities were characterized as having nurse practitioners/physician assistants, more beds, higher occupancy rate, higher Medicare and Medicaid census, and being for-profit and located in less competitive markets.
AHRQ-funded; HS023345; HS013852.
Citation: Weech-Maldonado R, Lord J, Pradhan R .
High Medicaid nursing homes: organizational and market factors associated with financial performance.
Inquiry 2019 Jan-Dec;56:46958018825061. doi: 10.1177/0046958018825061..
Keywords: Nursing Homes, Medicaid, Medicare
Angraal S, Khera R, Zhou S
Trends in 30-day readmission rates for Medicare and non-Medicare patients in the era of the Affordable Care Act.
In this study the investigators we assessed trends in all-cause readmission rates for 1 of the 3 HRRP conditions or conditions not targeted by the HRRP in age-insurance groups defined by age group (>/=65 years or <65 years) and payer (Medicare, Medicaid, or private insurance). The investigators concluded that there appeared to be a systematic improvement in readmission rates for patient groups beyond the population of fee-for-service, older, Medicare beneficiaries included in the HRRP.
AHRQ-funded; HS022882.
Citation: Angraal S, Khera R, Zhou S .
Trends in 30-day readmission rates for Medicare and non-Medicare patients in the era of the Affordable Care Act.
Am J Med 2018 Nov;131(11):1324-31.e14. doi: 10.1016/j.amjmed.2018.06.013..
Keywords: Policy, Healthcare Cost and Utilization Project (HCUP), Hospital Readmissions, Medicaid, Medicare
Keohane LM, Trivedi AN, Mor V
The role of Medicare's inpatient cost-sharing in Medicaid entry.
This study sought to isolate the effect of greater inpatient cost-sharing on Medicaid entry among Medicare beneficiaries. It concluded that Increasing Medicare cost-sharing requirements may promote Medicaid enrollment among low-income beneficiaries. Potential savings from an increased cost-sharing in the Medicare program may be offset by increased Medicaid participation.
AHRQ-funded; HS023016.
Citation: Keohane LM, Trivedi AN, Mor V .
The role of Medicare's inpatient cost-sharing in Medicaid entry.
Health Serv Res 2018 Apr;53(2):711-29. doi: 10.1111/1475-6773.12682.
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Keywords: Healthcare Costs, Inpatient Care, Medicaid, Medicare
Keohane LM, Trivedi AN, Mor V
Recent health care use and Medicaid entry of Medicare beneficiaries.
The purpose of this study was to examine the relationship between Medicaid entry and recent health care use among Medicare beneficiaries. Although recent health care use predicted greater likelihood of Medicaid entry, half of new Medicaid participants used no hospital or nursing home care during the study period.
AHRQ-funded; HS023016.
Citation: Keohane LM, Trivedi AN, Mor V .
Recent health care use and Medicaid entry of Medicare beneficiaries.
Gerontologist 2017 Oct 1;57(5):977-86. doi: 10.1093/geront/gnw189..
Keywords: Elderly, Healthcare Utilization, Health Services Research (HSR), Medicaid, Medicare
Chen LM, Epstein AM, Orav EJ
Association of practice-level social and medical risk with performance in the Medicare physician value-based payment modifier program.
The objective of this cross-sectional observational study was to compare performance in the Physician Value-Based Payment Modifier (PVBM) Program by practice characteristics. The investigators found that during the first year of the Medicare Physician Value-Based Payment Modifier Program, physician practices that served more socially high-risk patients had lower quality and lower costs, and practices that served more medically high-risk patients had lower quality and higher costs.
AHRQ-funded; HS024698.
Citation: Chen LM, Epstein AM, Orav EJ .
Association of practice-level social and medical risk with performance in the Medicare physician value-based payment modifier program.
JAMA 2017 Aug 1;318(5):453-61. doi: 10.1001/jama.2017.9643..
Keywords: Healthcare Costs, Medicaid, Medicare, Payment, Quality of Care
Peiris D, Phipps-Taylor MC, Stachowski CA
ACOs holding commercial contracts are larger and more efficient than noncommercial ACOs.
The researchers examined differences between commercial accountable care organizations (ACOs) and noncommercial ACOs. They found that among all ACOs, there was low uptake of quality and efficiency activities; commercial ACOs reported more use of disease monitoring tools, patient satisfaction data, and quality improvement methods; and about two-thirds of the ACOs had established processes for distributing any savings accrued. They concluded that ACO delivery systems remain at a nascent stage.
AHRQ-funded; HS024075.
Citation: Peiris D, Phipps-Taylor MC, Stachowski CA .
ACOs holding commercial contracts are larger and more efficient than noncommercial ACOs.
Health Aff 2016 Oct;35(10):1849-56. doi: 10.1377/hlthaff.2016.0387.
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Keywords: Healthcare Costs, Payment, Health Systems, Medicaid, Medicare
Doll JA, Hellkamp AS, Goyal A
Treatment, outcomes, and adherence to medication regimens among dual Medicare-Medicaid-eligible adults with myocardial infarction.
The purpose of the study was to examine the association of dual-eligible status with clinical outcomes and adherence to medication regimens among older adults after MI. The investigators found that compared with Medicare-only patients, older adults with dual Medicare-Medicaid eligibility presenting with MI had superior rates of medication adherence but higher rates of postdischarge readmission and adverse cardiovascular outcomes.
AHRQ-funded; HS021092.
Citation: Doll JA, Hellkamp AS, Goyal A .
Treatment, outcomes, and adherence to medication regimens among dual Medicare-Medicaid-eligible adults with myocardial infarction.
JAMA Cardiol 2016 Oct 1;1(7):787-94. doi: 10.1001/jamacardio.2016.2724..
Keywords: Elderly, Medicaid, Medicare, Medication, Heart Disease and Health, Outcomes, Patient Adherence/Compliance
Burns ME, Huskamp HA, Smith JC
The effects of the transition from Medicaid to Medicare on health care use for adults with mental illness.
The researchers estimated the effect of dual coverage after Medicaid enrollment during the required waiting period among adults with serious mental illness on health care use, overall and related to mental health and substance use disorders. They found that after 12 months of dual coverage, the probability of outpatient care use increased in both states from 4 percent to 9 percent.
AHRQ-funded; HS018577.
Citation: Burns ME, Huskamp HA, Smith JC .
The effects of the transition from Medicaid to Medicare on health care use for adults with mental illness.
Med Care 2016 Sep;54(9):868-77. doi: 10.1097/mlr.0000000000000572.
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Keywords: Behavioral Health, Medicaid, Medicare, Hospitalization, Healthcare Utilization
Berry SA, Fleishman JA, Yehia BR
AHRQ Author: Fleishman JA
Healthcare coverage for HIV provider visits before and after implementation of the Affordable Care Act.
The researchers compared HIV provider coverage pre (2011-2013) versus post (first half of 2014) ACA among a total of 28,374 persons living with HIV (PLWH) followed in 4 sites in Medicaid expansion states (CA, OR, MD), 4 in a state (NY) that expanded Medicaid in 2001, and 2 in non-expansion states (TX, FL). In expansion state sites, half of PLWH relying on Ryan White HIVAIDS Program(RWHAP)/Uncomp shifted to Medicaid, while in NY and non-expansion state sites, reliance on RWHAP/Uncomp remained constant.
AHRQ-authored.
Citation: Berry SA, Fleishman JA, Yehia BR .
Healthcare coverage for HIV provider visits before and after implementation of the Affordable Care Act.
Clin Infect Dis 2016 Aug 1;63(3):387-95. doi: 10.1093/cid/ciw278.
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Keywords: Human Immunodeficiency Virus (HIV), Medicaid, Medicare, Health Insurance
Keohane LM, Rahman M, Mor V
Reforming access: trends in Medicaid enrollment for new Medicare beneficiaries, 2008-2011.
This study evaluated whether aligning the Part D low-income subsidy and Medicaid program enrollment pathways in 2010 increased Medicaid participation among new Medicare beneficiaries. It found that the percentage of beneficiaries enrolling in limited Medicaid at the start of Medicare coverage increased in 2010 by 0.3 percentage points for individuals aging into Medicare and by 1.3 percentage points for those qualifying due to disability.
AHRQ-funded; HS000011.
Citation: Keohane LM, Rahman M, Mor V .
Reforming access: trends in Medicaid enrollment for new Medicare beneficiaries, 2008-2011.
Health Serv Res 2016 Apr;51(2):550-69. doi: 10.1111/1475-6773.12349.
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Keywords: Medicare, Medicaid, Policy, Access to Care, Social Determinants of Health
Berry SA, Fleishman JA, Moore RD
AHRQ Author: Fleishman JA
Thirty-day hospital readmissions for adults with and without HIV infection.
This study compared 30-day readmission rates by HIV status in a multi-state sample with planned subgroup comparisons by insurance and diagnostic categories. After adjustment for age, gender, race, insurance, and diagnostic category, HIV infection was associated with 1.5 times higher odds of readmission. Predicted, adjusted readmission rates were higher for persons living with HIV within every insurance category, including Medicaid.
AHRQ-authored.
Citation: Berry SA, Fleishman JA, Moore RD .
Thirty-day hospital readmissions for adults with and without HIV infection.
HIV Med 2016 Mar;17(3):167-77. doi: 10.1111/hiv.12287.
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Keywords: Healthcare Cost and Utilization Project (HCUP), Human Immunodeficiency Virus (HIV), Hospital Readmissions, Medicaid, Medicare
Jung HY, Trivedi AN, Grabowski DC
Integrated Medicare and Medicaid managed care and rehospitalization of dual eligibles.
The objective of this study was to conduct an early evaluation of an innovative program that coordinates benefits for elderly dual eligibles. The authors found no statistically significant effect of senior care options on rehospitalization. They concluded that coordinating the financing and delivery of services through an integrated managed program may not sufficiently address the problems of inefficiency and fragmentation in care for hospitalized dual eligible enrollees.
AHRQ-funded; HS020756.
Citation: Jung HY, Trivedi AN, Grabowski DC .
Integrated Medicare and Medicaid managed care and rehospitalization of dual eligibles.
Am J Manag Care 2015 Oct;21(10):711-7.
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Keywords: Healthcare Delivery, Care Management, Medicaid, Medicare, Hospital Readmissions
Konetzka RT, Grabowski DC, Perraillon MC
Nursing home 5-star rating system exacerbates disparities in quality, by payer source.
The researchers examined how the Centers for Medicare and Medicare Services’ five-star rating system for nursing homes has affected residents who are dually enrolled in Medicare and Medicaid (“dual eligibles”). They found that by 2010 the increased likelihood of choosing the highest-rated homes was substantially smaller for dual eligibles than for non–dual eligibles.
AHRQ-funded; HS021877.
Citation: Konetzka RT, Grabowski DC, Perraillon MC .
Nursing home 5-star rating system exacerbates disparities in quality, by payer source.
Health Aff 2015 May;34(5):819-27. doi: 10.1377/hlthaff.2014.1084..
Keywords: Nursing Homes, Medicare, Medicaid, Quality of Care
Wright KD, Pepper GA, Caserta M
Factors that influence physical function and emotional well-being among Medicare-Medicaid enrollees.
The researchers examined the associations between race, gender, age, neighborhood poverty, education, and health behaviors (i.e., smoking, exercise, and physical activity) with physical function and emotional well-being in Medicare-Medicaid enrollees. They determined that race, neighborhood poverty, education, and income did not influence physical function or emotional well-being; however, physical activity was associated both with an increased self-report of physical function and emotional well-being.
AHRQ-funded; HS014539.
Citation: Wright KD, Pepper GA, Caserta M .
Factors that influence physical function and emotional well-being among Medicare-Medicaid enrollees.
Geriatr Nurs 2015 Mar-Apr;36(2 Suppl):S16-20. doi: 10.1016/j.gerinurse.2015.02.022..
Keywords: Social Determinants of Health, Medicare, Medicaid, Lifestyle Changes, Health Status
Madden JM, Adams AS, LeCates RF
Changes in drug coverage generosity and untreated serious mental illness: transitioning from Medicaid to Medicare Part D.
This study examined the effects of transitioning to Part D coverage among disabled dual enrollees with schizophrenia or a bipolar disorder, comparing enrollees in states with strict Medicaid cap policies with enrollees in states without caps. It found significant reductions in the number of people with a serious mental illness who were not treated owing to the transition to Part D from strictly capped Medicaid coverage.
AHRQ-funded; HS018577.
Citation: Madden JM, Adams AS, LeCates RF .
Changes in drug coverage generosity and untreated serious mental illness: transitioning from Medicaid to Medicare Part D.
JAMA Psychiatry 2015 Feb;72(2):179-88. doi: 10.1001/jamapsychiatry.2014.1259..
Keywords: Behavioral Health, Medication, Medicare, Medicaid, Depression
Kindermann DR, Mutter RL, Houchens RL
AHRQ Author: Mutter RL
The transfer instability index: a novel metric of emergency department transfer relationships.
The researchers developed the “transfer instability index” to describe sending hospitals’ relationships with receiving hospitals. They found that emergency departments with a greater share of publicly insured patients had a greater transfer instability index, which may indicate less stable, protocolized, and regionalized transfer relationships.
AHRQ-funded; 290201300002C.
Citation: Kindermann DR, Mutter RL, Houchens RL .
The transfer instability index: a novel metric of emergency department transfer relationships.
Acad Emerg Med 2015 Feb;22(2):166-71. doi: 10.1111/acem.12589..
Keywords: Emergency Medical Services (EMS), Emergency Department, Transitions of Care, Medicaid, Medicare
Lepore MJ, Shield RR, Looze J
Medicare and Medicaid reimbursement rates for nursing homes motivate select culture change practices but not comprehensive culture change.
The researchers use mixed methods to examine the presence of culture change practices in the context of a nursing home’s (NH’s) payer sources. They concluded that qualitative data show how higher pay from Medicare versus Medicaid influences implementation of select culture change practices, and quantitative data show NHs with higher proportions of Medicare residents have significantly higher (measured) environmental culture change implementation.
AHRQ-funded; HS000011.
Citation: Lepore MJ, Shield RR, Looze J .
Medicare and Medicaid reimbursement rates for nursing homes motivate select culture change practices but not comprehensive culture change.
J Aging Soc Policy 2015;27(3):215-31. doi: 10.1080/08959420.2015.1022102..
Keywords: Nursing Homes, Medicare, Medicaid, Payment, Health Insurance