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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
1 to 3 of 3 Research Studies DisplayedAlpert A
The anticipatory effects of Medicare Part D on drug utilization.
While health care policies are frequently signed into law well before they are implemented, such lags are ignored in most empirical work. This paper demonstrates the importance of implementation lags in the context of Medicare Part D, the prescription drug benefit that took effect two years after it was signed into law.
AHRQ-funded; HS019681.
Citation: Alpert A .
The anticipatory effects of Medicare Part D on drug utilization.
J Health Econ 2016 Sep;49:28-45. doi: 10.1016/j.jhealeco.2016.06.004..
Keywords: Policy, Medicare, Medication, Policy, Policy
Colla CH, Lewis VA, Kao LS
Association between Medicare accountable care organization implementation and spending among clinically vulnerable beneficiaries.
The purpose of this cohort study was to examine the effect of Medicare accountable care organization (ACO) contracts on both spending and high-cost institutional utilization for all Medicare beneficiaries and for clinically vulnerable beneficiaries. The main outcomes and measures for this study were total spending per beneficiary-quarter, spending categories, utilization of hospitals and emergency departments, ambulatory care sensitive admissions, and 30-day readmissions. The study found that total spending decreased by $34 per beneficiary-quarter after implementation of ACO contracts across the overall Medicare population and decreased $114 in clinically vulnerable patients. In the overall Medicare cohort, hospitalizations and emergency department visits decreased by 1.3 and 3.0 events per 1000 beneficiaries per quarter, respectively. Hospitalizations and emergency department visits decreased in the clinically vulnerable cohort by 2.9 and 4.1 events per 1000 beneficiaries per quarter, respectively. Variations in total spending related with ACOs did not differ by clinical condition of beneficiaries.
AHRQ-funded; HS024075.
Citation: Colla CH, Lewis VA, Kao LS .
Association between Medicare accountable care organization implementation and spending among clinically vulnerable beneficiaries.
JAMA Intern Med 2016 Aug;176(8):1167-75. doi: 10.1001/jamainternmed.2016.2827.
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Keywords: Medicare, Policy, Healthcare Costs, Payment, Vulnerable Populations
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