National Healthcare Quality and Disparities Report
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Search All Research Studies
Topics
- Adverse Drug Events (ADE) (1)
- Cancer (1)
- Cancer: Prostate Cancer (1)
- Chronic Conditions (3)
- (-) Diabetes (11)
- Disparities (1)
- Elderly (4)
- Electronic Prescribing (E-Prescribing) (1)
- Falls (1)
- Healthcare Costs (1)
- Health Insurance (1)
- Home Healthcare (1)
- Hospital Readmissions (1)
- Injuries and Wounds (1)
- Low-Income (2)
- (-) Medicare (11)
- Medication (7)
- Patient Adherence/Compliance (3)
- Provider Performance (1)
- Quality Improvement (1)
- Quality Measures (2)
- Quality of Care (1)
- Racial and Ethnic Minorities (1)
- Risk (1)
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
1 to 11 of 11 Research Studies DisplayedGlynn 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
Smith JM, Lin H, Thomas-Hawkins C
Timing of home health care initiation and 30-day rehospitalizations among Medicare beneficiaries with diabetes by race and ethnicity.
Older adults with diabetes are at elevated risk of complications following hospitalization. Home health care services mitigate the risk of adverse events and facilitate a safe transition home. In the United States, when home health care services are prescribed, federal guidelines require they begin within two days of hospital discharge. This study examined the association between timing of home health care initiation and 30-day rehospitalization outcomes in a cohort of 786,734 Medicare beneficiaries following a diabetes-related index hospitalization admission during 2015.
AHRQ-funded; HS022406.
Citation: Smith JM, Lin H, Thomas-Hawkins C .
Timing of home health care initiation and 30-day rehospitalizations among Medicare beneficiaries with diabetes by race and ethnicity.
Int J Environ Res Public Health 2021 May 25;18(11). doi: 10.3390/ijerph18115623..
Keywords: Elderly, Home Healthcare, Hospital Readmissions, Medicare, Diabetes, Chronic Conditions, Racial and Ethnic Minorities
McCoy RG, Van Houten HK, Deng Y
Comparison of diabetes medications used by adults with commercial insurance vs Medicare Advantage, 2016 to 2019.
Investigators sought to compare trends in initiation of treatment with GLP-1RA, SGLT2i, and DPP-4i by older adults with type 2 diabetes insured by Medicare Advantage vs commercial health plans. They found that Medicare Advantage beneficiaries may be less likely than commercially insured beneficiaries to be treated with newer medications to lower glucose levels, with greater disparities among lower-income patients. They recommended further investigation of nonclinical factors contributing to treatment decisions and efforts to promote greater equity in diabetes management.
AHRQ-funded; HS025164.
Citation: McCoy RG, Van Houten HK, Deng Y .
Comparison of diabetes medications used by adults with commercial insurance vs Medicare Advantage, 2016 to 2019.
JAMA Netw Open 2021 Feb;4(2):e2035792. doi: 10.1001/jamanetworkopen.2020.35792..
Keywords: Elderly, Diabetes, Chronic Conditions, Medication, Medicare, Health Insurance, Disparities, Low-Income
Randolph AC, Lin YL, Volpi E
Tricyclic antidepressant and/or gamma-aminobutyric acid-analog use is associated with fall risk in diabetic peripheral neuropathy.
This study invested whether tricyclic antidepressant and/or gamma-aminobutyric acid-analog (TCA/GABA) use is associated fall risk in older diabetic peripheral neuropathy (DPN) patients. A nationally representative 5% Medicare sample between the years 2008 and 2010 were used, and 5,550 patients with TCA/GABA prescriptions were compared to 22,200 patients without a TCA/GABA prescription. Patients were followed until there was an incidence of a fall or first incidence of a fracture during the follow-up period of up to 5 years. After covariate adjustment, there was a statistically significant increase in falls and fractures for patients using TCAs or GABA-analogs.
AHRQ-funded; HS020642.
Citation: Randolph AC, Lin YL, Volpi E .
Tricyclic antidepressant and/or gamma-aminobutyric acid-analog use is associated with fall risk in diabetic peripheral neuropathy.
J Am Geriatr Soc 2019 Jun;67(6):1174-81. doi: 10.1111/jgs.15779..
Keywords: Medication, Diabetes, Elderly, Falls, Injuries and Wounds, Medicare, Risk
Fraze TK, Lewis VA, Tierney E
Quality of care improves for patients with diabetes in Medicare shared savings accountable care organizations: organizational characteristics associated with performance.
This study analyzed secondary data retrospectively to examine Medicare Shared Savings Program (MSSP) Accountable Care Organizations’ performance on diabetes metrics in the first 2 years of ACO contracts in order to determine how ACO organizational characteristics - such as composition, staffing, care management, and experiences with health reform - were associated with quality of care delivered to patients with diabetes.
AHRQ-funded; HS024075.
Citation: Fraze TK, Lewis VA, Tierney E .
Quality of care improves for patients with diabetes in Medicare shared savings accountable care organizations: organizational characteristics associated with performance.
Popul Health Manag 2018 Oct;21(5):401-08. doi: 10.1089/pop.2017.0102..
Keywords: Diabetes, Quality of Care, Medicare, Provider Performance, Quality Improvement
Gabriel MH, Powers C, Encinosa W
AHRQ Author: Encinosa W
E-prescribing and adverse drug events: an observational study of the Medicare part D population with diabetes.
The researchers examined the impact of e-prescribing on emergency visits or hospitalizations for diabetes-related adverse drug events (ADEs) including hypoglycemia. They concluded that at the e-prescribing threshold of 75 percent and above, there were significant reductions in ADE risk.
AHRQ-authored.
Citation: Gabriel MH, Powers C, Encinosa W .
E-prescribing and adverse drug events: an observational study of the Medicare part D population with diabetes.
Med Care 2017 May;55(5):456-62. doi: 10.1097/mlr.0000000000000684.
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Keywords: Adverse Drug Events (ADE), Electronic Prescribing (E-Prescribing), Diabetes, Medicare, Medication
Raval AD, Mattes MD, Madhavan S
Association between metformin use and cancer stage at diagnosis among elderly Medicare beneficiaries with preexisting Type 2 diabetes mellitus and incident prostate cancer.
The researchers examined the association between metformin use and cancer stage at diagnosis among elderly men with preexisting diabetes mellitus and incident prostate cancer. They found a significantly lower percentage of metformin users were diagnosed with advanced prostate cancer as compared to nonusers (4.7 percent versus 6.7 percent.
AHRQ-funded; HS018622.
Citation: Raval AD, Mattes MD, Madhavan S .
Association between metformin use and cancer stage at diagnosis among elderly Medicare beneficiaries with preexisting Type 2 diabetes mellitus and incident prostate cancer.
J Diabetes Res 2016;2016:2656814. doi: 10.1155/2016/2656814.
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Keywords: Cancer: Prostate Cancer, Medication, Elderly, Diabetes, Medicare
Stuart BC, Davidoff AJ, Erten MZ
AHRQ Author: Davidoff AJ
Changes in medication management after a diagnosis of cancer among Medicare beneficiaries with diabetes.
The researchers sought to determine whether a new cancer diagnosis is associated with changes in medication adherence among Medicare beneficiaries with diabetes. They concluded that cancer diagnosis among patients with diabetes reduced adherence with evidence-based medications, particularly if patients’ life expectancy was short.
Citation: Stuart BC, Davidoff AJ, Erten MZ .
Changes in medication management after a diagnosis of cancer among Medicare beneficiaries with diabetes.
J Oncol Pract 2015 Nov;11(6):429-34. doi: 10.1200/jop.2014.003046..
Keywords: Medication, Medicare, Cancer, Diabetes, Patient Adherence/Compliance
Schmittdiel JA, Nichols GA, Dyer W
Health care system-level factors associated with performance on Medicare STAR adherence metrics in a large, integrated delivery system.
The researchers examined the association of Medicare STAR adherence metrics with system-wide factors for patients with diabetes. They found that the strongest predictor of achieving STAR-defined medication adherence for patients with diabetes was a greater days’ supply of medications. Other important factors were use of a mail order pharmacy, lower copayments and lower annual individual out-of-pocket maximums.
AHRQ-funded; HS019859
Citation: Schmittdiel JA, Nichols GA, Dyer W .
Health care system-level factors associated with performance on Medicare STAR adherence metrics in a large, integrated delivery system.
Med Care. 2015 Apr;53(4):332-7. doi: 10.1097/mlr.0000000000000328..
Keywords: Medicare, Diabetes, Patient Adherence/Compliance, Quality Measures
Marcum ZA, Driessen J, Thorpe CT
Regional variation in use of a new class of antidiabetic medication among Medicare beneficiaries: the case of incretin mimetics.
After incretin mimetic medications (IMs), a new class of diabetes drugs, were introduced in 2005, researchers examining their use as well as their cost implications for Medicare Part D between 2005 and 2010 found substantial geographic variation existing in their use that was not accounted for by sociodemographic and health status factors. Also, IM use was associated with substantially greater costs for Part D plans and beneficiaries.
AHRQ-funded; HS018721.
Citation: Marcum ZA, Driessen J, Thorpe CT .
Regional variation in use of a new class of antidiabetic medication among Medicare beneficiaries: the case of incretin mimetics.
Ann Pharmacother 2015 Mar;49(3):285-92. doi: 10.1177/1060028014563951..
Keywords: Medication, Diabetes, Medicare
Schmittdiel J, Raebel M, Dyer W
Medicare Star excludes diabetes patients with poor CVD risk factor control.
This study is designed to improve understanding of novel CMS quality measures (adherence to antihypertensives, antihyperlipidemics, and oral antihyperglycemics) by assessing the proportion of Medicare patients with diabetes who are excluded from the Medicare Star medication adherence metrics due to early nonadherence and insulin use. Medicare’s STAR measures are used to evaluate the performance of Medicare Advantage plans.
AHRQ-funded; HS019859
Citation: Schmittdiel J, Raebel M, Dyer W .
Medicare Star excludes diabetes patients with poor CVD risk factor control.
Am J Manag Care. 2014 Dec; 20(12):e573-81..
Keywords: Medicare, Diabetes, Quality Measures, Patient Adherence/Compliance