ArticleMedical care2016
Health Care Utilization Rates After Oregon's 2008 Medicaid Expansion: Within-Group and Between-Group Differences Over Time Among New, Returning, and Continuously Insured Enrollees.
Article in Medical care, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
26 citing papers in PubMed.
- Cervical Cancer Screening among Older Latina Migrant and Seasonal Farmworkers in a Network of Community Health Centers.Ethnicity & disease · 2025Observational
- Atherosclerotic Cardiovascular Disease Primary and Secondary Prevention in Latino Subgroups.Journal of general internal medicine · 2024Article
- The Association of Mobility, Social Deprivation, and Pediatric Primary Care Outcomes in Community Health Centers.The Journal of pediatrics · 2023Article
- Screening for Hepatitis C Among Community Health Center Patients by Ethnicity and Language Preference.AJPM focus · 2023Article
- Racial, ethnic, and language differences in screening measures for statin therapy following a major guideline change.Preventive medicine · 2022Article
- Influenza and pneumococcal vaccination delivery in older Hispanic populations in the United States.Journal of the American Geriatrics Society · 2022Article
- Evaluating A Nonemergency Medical Transportation Benefit For Accountable Care Organization Members.Health affairs (Project Hope) · 2022Article
- Comparing health care use and costs among new Medicaid enrollees before and during the COVID-19 pandemic.BMC health services research · 2021Article
- Emergency Department and Ambulatory Care Visits in the First Twelve Months of Coverage Under Medicaid Expansion: A Group-Based Trajectory Analysis.Annals of emergency medicine · 2021Observational
- Health insurance coverage and self-employment.Health services research · 2021Article
- The Affordable Care Act: Effects of Insurance on Diabetes Biomarkers.Diabetes care · 2020Observational
- Healthcare consumption after a change in health insurance coverage: a French quasi-natural experiment.Health economics review · 2020Article
- Health Care Expenditures Among Adults With Diabetes After Oregon's Medicaid Expansion.Diabetes care · 2020Article
- Where Do Oregon Medicaid Enrollees Seek Outpatient Care Post-affordable Care Act Medicaid Expansion?Medical care · 2019Article
- Asthma/COPD Disparities in Diagnosis and Basic Care Utilization Among Low-Income Primary Care Patients.Journal of immigrant and minority health · 2019Article
- Medicaid coverage accuracy in electronic health records.Preventive medicine reports · 2018Article
- Oregon Medicaid Expenditures After the 2014 Affordable Care Act Medicaid Expansion: Over-time Differences Among New, Returning, and Continuously Insured Enrollees.Medical care · 2018Article
- Role of Race/Ethnicity, Language, and Insurance in Use of Cervical Cancer Prevention Services Among Low-Income Hispanic Women, 2009-2013.Preventing chronic disease · 2018Observational
- Assessing Community Cancer care after insurance ExpanSionS (ACCESS) study protocol.Contemporary clinical trials communications · 2017Article
- Medicaid's Impact on Chronic Disease Biomarkers: A Cohort Study of Community Health Center Patients.Journal of general internal medicine · 2017Article
Corrections and comments
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Authors and funding
12 authors.
Funding
Abstract
backgroundAlthough past research demonstrated that Medicaid expansions were associated with increased emergency department (ED) and primary care (PC) utilization, little is known about how long this increased utilization persists or whether postcoverage utilization is affected by prior insurance status.
objectives(1) To assess changes in ED, PC, mental and behavioral health care, and specialist care visit rates among individuals gaining Medicaid over 24 months postinsurance gain; and (2) to evaluate the association of previous insurance with utilization.
methodsUsing claims data, we conducted a retrospective cohort analysis of adults insured for 24 months following Oregon's 2008 Medicaid expansion. Utilization rates among 1124 new and 1587 returning enrollees were compared with those among 5126 enrollees with continuous Medicaid coverage (≥1 y preexpansion). Visit rates were adjusted for propensity score classes and geographic region.
resultsPC visit rates in both newly and returning insured individuals significantly exceeded those in the continuously insured in months 4 through 12, but were not significantly elevated in the second year. In contrast, ED utilization rates were significantly higher in returning insured compared with newly or continuously insured individuals and remained elevated over time. New visits to PC and specialist care were higher among those who gained Medicaid compared with the continuously insured throughout the study period.
conclusionsPredicting the effect of insurance expansion on health care utilization should account for the prior coverage history of new enrollees. In addition, utilization of outpatient services changes with time after insurance, so expansion evaluations should allow for rate stabilization.
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