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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 DisplayedSmith K, Padmanabhan P, Chen A
The impacts of the 340B Program on health care quality for low-income patients.
This study’s objective was to assess the effects of hospital 340B eligibility on quality of inpatient care provided to Medicaid and uninsured patients and for all patients. HCUP State Inpatient Data, Hospital Cost Reporting Information System Data, Office of Pharmacy Affairs Information System Data, and the American Hospital Association Annual Survey were all used to extract inpatient data from general acute care hospitals from 2008 to 2014 in 15 states. Data was linked on hospital 340B eligibility and participation. The authors did not find discontinuities in inpatient care quality across the Program eligibility threshold for Medicaid and uninsured patients; specifically, on all-cause mortality, 30-day readmission rates, or other measures. Among insured and non-Medicaid patients, they found discontinuities for acute myocardial infarction and postoperative sepsis mortality.
AHRQ-funded; HS026980.
Citation: Smith K, Padmanabhan P, Chen A .
The impacts of the 340B Program on health care quality for low-income patients.
Health Serv Res 2023 Oct; 58(5):1089-97. doi: 10.1111/1475-6773.14204..
Keywords: Low-Income, Hospitals, Vulnerable Populations, Medicaid, Uninsured, Inpatient Care, Quality of Care
Desai SM, Padmanabhan P, Chen AZ
Hospital concentration and low-income populations: evidence from New York State Medicaid.
The purpose of this study was to utilize comprehensive discharge data from New York State to assess the effects of changes in market concentration on hospital-level inpatient Medicaid volumes. The study found that for the average hospital, a one percent increase in HHI led to a 0.6% decrease in the number of Medicaid admissions. The strongest effects were on admissions for birth. These hospital-level decreases primarily reflect redistribution of Medicaid patients across hospitals, rather than overall reductions in hospitalizations for Medicaid patients. Specifically, hospital concentration leads to a redistribution of admissions from non-profit hospitals to public hospitals. The researchers found evidence that for births, physicians serving high proportions of Medicaid beneficiaries experience decreased admissions as concentration increased.
AHRQ-funded; HS026980.
Citation: Desai SM, Padmanabhan P, Chen AZ .
Hospital concentration and low-income populations: evidence from New York State Medicaid.
J Health Econ 2023 Jul; 90:102770. doi: 10.1016/j.jhealeco.2023.102770..
Keywords: Hospitals, Low-Income, Medicaid
Meille G, Post B
AHRQ Author: Meille G
The effects of the Medicaid expansion on hospital utilization, employment, and capital.
This AHRQ-authored paper describes the effect of the Affordable Care Act Medicaid expansion on hospital utilization, employment, and capital. The authors conducted a difference-in-differences analysis that compared changes to hospital demand and supply in Medicaid expansion and nonexpansion states. They used 2010-2016 data from the American Hospital Association and the Healthcare Cost Report Information System to quantify changes to hospital utilization and characterize how hospitals adjusted labor and capital inputs. Medicaid expansion was associated with increases in emergency department visits and other outpatient hospital visits. They found strong evidence that hospitals met increases in demand by hiring nursing staff and weaker evidence that they increased hiring of technicians and investments in equipment. They found no evidence that hospitals adjusted hiring of physicians, support staff, or investments in other capital inputs.
AHRQ-authored.
Citation: Meille G, Post B .
The effects of the Medicaid expansion on hospital utilization, employment, and capital.
Med Care Res Rev 2023 Apr;80(2):165-74. doi: 10.1177/10775587221133165.
Keywords: Medicaid, Hospitals, Healthcare Utilization, Health Insurance, Policy, Access to Care, Uninsured