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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.
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1 to 5 of 5 Research Studies DisplayedSelden TM, Karaca Z, Decker S
AHRQ Author: Selden TM, Karaca Z, Decker S
Has inpatient hospital treatment before and after age 65 changed as the difference between private and Medicare payment rates has widened?
This study examined whether inpatient hospital treatment before and after age 65 changed as the difference between private and Medicare payment rates widened. Using a large discharge dataset covering the period 2001-2011, the investigators tracked changes at age 65 in multiple dimensions of hospital care.
AHRQ-authored.
Citation: Selden TM, Karaca Z, Decker S .
Has inpatient hospital treatment before and after age 65 changed as the difference between private and Medicare payment rates has widened?
Int J Health Econ Manag 2018 Dec;18(4):409-23. doi: 10.1007/s10754-018-9240-5..
Keywords: Payment, Healthcare Cost and Utilization Project (HCUP), Hospitalization, Inpatient Care, 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
Henke RM, Karaca Z, Gibson TB
AHRQ Author: Karaca Z, Wong HS
Medicare Advantage and traditional Medicare hospitalization intensity and readmissions.
This study uses 2013 Healthcare Cost and Utilization Project hospital discharge data from 22 states to compare hospital cost, length of stay, and readmissions for Traditional Medicare and Medicare Advantage. The authors found that Medicare Advantage hospitalizations were substantially less expensive and shorter for mental health stays but costlier and longer for injury and surgical stays.
AHRQ-authored; AHRQ-funded; 290201300002C.
Citation: Henke RM, Karaca Z, Gibson TB .
Medicare Advantage and traditional Medicare hospitalization intensity and readmissions.
Med Care Res Rev 2018 Aug;75(4):434-53. doi: 10.1177/1077558717692103..
Keywords: Healthcare Cost and Utilization Project (HCUP), Hospital Discharge, Hospital Readmissions, Hospitalization, Medicare
Henke RM, Karaca Z, Gibson TB
AHRQ Author: Karaca Z, Wong HS
Medicare Advantage penetration and hospital costs before and after the Affordable Care Act.
This study investigated the relationship between Medicare Advantage (MA) program growth and inpatient hospital costs and utilization before and after the ACA. Its results suggest that MA enrollment growth is associated with diminished spillover reductions in hospital admission costs after the ACA. Researchers did not observe a strong relationship between MA enrollment and inpatient days per enrollee
AHRQ-authored; AHRQ-funded; 290201300002C.
Citation: Henke RM, Karaca Z, Gibson TB .
Medicare Advantage penetration and hospital costs before and after the Affordable Care Act.
Med Care 2018 Apr;56(4):321-28. doi: 10.1097/mlr.0000000000000885.
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Keywords: Healthcare Costs, Policy, Healthcare Cost and Utilization Project (HCUP), Hospitalization, Medicare
Cutler E, Karaca Z, Henke R
AHRQ Author: Karaca Z, Wong HS
The effects of Medicare accountable organizations on inpatient mortality rates.
This study examined whether Medicare Accountable Care Organizations (ACOs) have improved hospital quality of care, specifically focusing on preventable inpatient mortality. The investigators concluded that, on average, Medicare ACO hospitals are not associated with improved mortality rates for the studied inpatient quality indicator conditions. They suggest that stakeholders may potentially consider providing ACOs with incentives or designing new programs for ACOs to target inpatient mortality reductions.
AHRQ-authored.
Citation: Cutler E, Karaca Z, Henke R .
The effects of Medicare accountable organizations on inpatient mortality rates.
Inquiry 2018 Jan-Dec;55:46958018800092. doi: 10.1177/0046958018800092..
Keywords: Quality of Care, Healthcare Cost and Utilization Project (HCUP), Hospitals, Medicare, Mortality