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AHRQ Research Studies Date
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- Access to Care (5)
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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 7 of 7 Research Studies DisplayedRamadan OI, Kelz RR, Sharpe JE
Impact of Medicaid expansion on outcomes after abdominal aortic aneurysm repair.
Researchers sought to assess the association between Medicaid expansion and outcomes after abdominal aortic aneurysm repair using HCUP State Inpatient Databases data from 14 states. They examined data on 8995 adult patients under age 65 from both non-expansion states and Medicaid expansion states. The results indicated that Medicaid expansion was associated with decreased in-hospital mortality after abdominal aortic aneurysm repair among all patients, particularly among patients who were either on Medicaid or were uninsured. The researchers concluded that these results provided support for improved access to care for patients undergoing abdominal aortic aneurysm repair through Medicaid expansion.
AHRQ-funded; HS026116.
Citation: Ramadan OI, Kelz RR, Sharpe JE .
Impact of Medicaid expansion on outcomes after abdominal aortic aneurysm repair.
J Vasc Surg 2023 Sep; 78(3):648-56.e6. doi: 10.1016/j.jvs.2023.04.029..
Keywords: Healthcare Cost and Utilization Project (HCUP), Medicaid, Outcomes, Access to Care
Decker S, Dworsky M, Gibson TB
AHRQ Author: Decker S
The Impact of the Affordable Care Act Insurance Expansions on Opioid-Related Emergency Department Visits.
The authors leveraged ACA coverage expansions, including Medicaid expansion and Marketplaces, to study the impact of health insurance on opioid-related emergency department (ED) visits. They used ZIP-code–level ED utilization data from HCUP’s State Inpatient Databases (SID) and State Emergency Department Databases (SEDD) for 29 states. They found evidence of a dose-response relationship between pre-ACA uninsured and changes in ED visit rates in both expansion and non-expansion states: areas with higher uninsured rates prior to ACA saw larger reductions in opioid-related ED visits after the ACA took effect. The authors concluded that these findings suggest that increased insurance coverage may to help mitigate the opioid crisis.
AHRQ-authored.
Citation: Decker S, Dworsky M, Gibson TB .
The Impact of the Affordable Care Act Insurance Expansions on Opioid-Related Emergency Department Visits.
American Journal of Health Economics 2023 Sum; 9(3):405–34..
Keywords: Healthcare Cost and Utilization Project (HCUP), Opioids, Policy, Health Insurance, Emergency Department, Access to Care, Medicaid, Healthcare Utilization
Steenland MW, Wherry LR
Medicaid expansion led to reductions in postpartum hospitalizations.
The purpose of this study was to assess whether the Medicaid expansions of the Affordable Care Act (ACA) affected rates of postpartum hospitalization. The researchers compared states that did and did not expand Medicaid under the ACA as they related to changes in hospitalizations among birthing people with a Medicaid-financed delivery. The study found a 17% reduction in hospitalizations during the first 60 days postpartum associated with the Medicaid expansions, and evidence of a lesser decrease in hospitalizations between 61 days and 6 months postpartum. The researchers concluded that Medicaid coverage expansion under the ACA resulted in improved postpartum health for low-income birthing people.
AHRQ-funded; HS027464.
Citation: Steenland MW, Wherry LR .
Medicaid expansion led to reductions in postpartum hospitalizations.
Health Aff 2023 Jan; 42(1):18-25. doi: 10.1377/hlthaff.2022.00819..
Keywords: Healthcare Cost and Utilization Project (HCUP), Medicaid, Hospitalization, Maternal Care, Women, Health Insurance, Access to Care
Moriya AS, Chakravarty S
AHRQ Author: Moriya AS
Racial and ethnic disparities in preventable hospitalizations and ED visits five years after ACA Medicaid expansions,.
This AHRQ-authored paper examined whether the 2014 Affordable Care Act (ACA) Medicaid expansions mitigated existing racial or ethnic disparities in preventable hospitalizations and emergency department (ED) visits. The authors used inpatient data from twenty-nine states and ED data from twenty-six states for the period 2011 to 2018. They found that Medicaid expansions decreased disparities in preventable hospitalizations and ED visits between non-Hispanic Black and White nonelderly adults by 10 percent or more. There were no significant effects on disparities between Hispanic and non-Hispanic White nonelderly adults. Their findings highlight sustained improvements in community-level care for non-Hispanic Black populations, but also suggest access barriers experienced by Hispanic adults that need to be addressed beyond Medicaid eligibility expansion.
AHRQ-authored.
Citation: Moriya AS, Chakravarty S .
Racial and ethnic disparities in preventable hospitalizations and ED visits five years after ACA Medicaid expansions,.
Health Aff 2023 Jan; 42(1):26-34. doi: 10.1377/hlthaff.2022.00460..
Keywords: Healthcare Cost and Utilization Project (HCUP), Racial and Ethnic Minorities, Emergency Department, Hospitalization, Disparities, Medicaid, Health Insurance, Access to Care
Dy CJ, Salter A, Barker A
Increased utilization of total joint arthroplasty after Medicaid expansion.
This study examined prior analyses that greater utilization of total hip arthroplasty (THA) and total knee arthroplasty (TKA) was to be expected after Medicaid expansion in 2014. Using 2012-2015 data from the HCUP Database, 9 expansion states (Arkansas, Arizona, Colorado, Iowa, Massachusetts, Maryland, Nevada, New York, and Vermont) were compared to 2 states that did not expand Medicaid (Florida and Missouri). After adjusting for community characteristics, THA and TKA increased 15% in 2014 and 23% in 2015 within expansion states compared to 2013. In non-expansion states, compared to 2013, there were significant decreases of 18% in 2014 and 11% in 2015.
AHRQ-funded; HS019455.
Citation: Dy CJ, Salter A, Barker A .
Increased utilization of total joint arthroplasty after Medicaid expansion.
J Bone Joint Surg Am 2021 Mar 17;103(6):524-31. doi: 10.2106/jbjs.20.00303..
Keywords: Healthcare Cost and Utilization Project (HCUP), Medicaid, Orthopedics, Surgery, Healthcare Utilization, Access to Care
Henke RM, Wier LM, Marder WD
AHRQ Author: Friedman BS, Wong HS
Geographic variation in cesarean delivery in the United States by payer.
This study aimed (1) to determine whether the geographic variation in cesarean delivery rate is consistent for private insurance and Medicaid, and (2) to identify the patient, population, and market factors associated with cesarean rate and determine if these factors vary by payer. It concluded that factors associated with geographic variation in cesarean delivery, a frequent and high-resource inpatient procedure, vary somewhat by payer.
AHRQ-authored; AHRQ-funded; 290200600009C.
Citation: Henke RM, Wier LM, Marder WD .
Geographic variation in cesarean delivery in the United States by payer.
BMC Pregnancy Childbirth 2014 Nov 19;14:387. doi: 10.1186/s12884-014-0387-x.
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Keywords: Healthcare Cost and Utilization Project (HCUP), Health Insurance, Labor and Delivery, Medicaid, Pregnancy
Schiltz NK, Finkelstein Rosenthal B, Crowley MA
Rehospitalization during the first year of life by insurance status.
The authors assessed the association of insurance status on infant rehospitalization in a population-based setting. They found that Medicaid coverage and being uninsured were strong predictors of rehospitalizations, with Medicaid bearing a disproportionate share of the economic burden. Normal birth weight infants had the lowest risk. They further found that jaundice and acute bronchiolitis were the leading causes of rehospitalization within 30 days and 1 year, respectively.
AHRQ-funded; HS000059.
Citation: Schiltz NK, Finkelstein Rosenthal B, Crowley MA .
Rehospitalization during the first year of life by insurance status.
Clin Pediatr 2014 Aug;53(9):845-53. doi: 10.1177/0009922814536924.
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Keywords: Health Insurance, Healthcare Cost and Utilization Project (HCUP), Hospital Readmissions, Newborns/Infants, Medicaid, Newborns/Infants