Dataset Information

Medicaid increases emergency-department use: evidence from Oregon's Health Insurance Experiment.

ABSTRACT: In 2008, Oregon initiated a limited expansion of a Medicaid program for uninsured, low-income adults, drawing names from a waiting list by lottery. This lottery created a rare opportunity to study the effects of Medicaid coverage by using a randomized controlled design. By using the randomization provided by the lottery and emergency-department records from Portland-area hospitals, we studied the emergency department use of about 25,000 lottery participants over about 18 months after the lottery. We found that Medicaid coverage significantly increases overall emergency use by 0.41 visits per person, or 40% relative to an average of 1.02 visits per person in the control group. We found increases in emergency-department visits across a broad range of types of visits, conditions, and subgroups, including increases in visits for conditions that may be most readily treatable in primary care settings.

SUBMITTER: Taubman SL

PROVIDER: S-EPMC3955206 | biostudies-literature | 2014 Jan

REPOSITORIES: biostudies-literature

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Medicaid increases emergency-department use: evidence from Oregon's Health Insurance Experiment.

Taubman Sarah L SL Allen Heidi L HL Wright Bill J BJ Baicker Katherine K Finkelstein Amy N AN

Science (New York, N.Y.) 20140102 6168

In 2008, Oregon initiated a limited expansion of a Medicaid program for uninsured, low-income adults, drawing names from a waiting list by lottery. This lottery created a rare opportunity to study the effects of Medicaid coverage by using a randomized controlled design. By using the randomization provided by the lottery and emergency-department records from Portland-area hospitals, we studied the emergency department use of about 25,000 lottery participants over about 18 months after the lottery ...[more]

PMID: 24385603

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Project description:BackgroundThe rates of emergency department (ED) utilization vary substantially by type of health insurance, but the association between health insurance type and patient-reported reasons for seeking ED care is unknown.ObjectiveWe evaluated the association between health insurance type and self-perceived acuity or access issues among individuals discharged from the ED.Design, patientsThis was a cross-sectional analysis of the 2011 National Health Interview Survey. Adults whose last ED visit did not result in hospitalization (n = 4,606) were asked structured questions about reasons for seeking ED care. We classified responses as 1) perceived need for immediate evaluation (acuity issues), or 2) barriers to accessing outpatient services (access issues).Main measuresWe analyzed survey-weighted data using multivariable logistic regression models to test the association between health insurance type and reasons for ED visits, while adjusting for sociodemographic characteristics.Key resultsOverall, 65.0% (95% CI 63.0-66.9) of adults reported ? 1 acuity issue and 78.9% (95% CI 77.3-80.5) reported ? 1 access issue. Among those who reported no acuity issue leading to the most recent ED visit, 84.2% reported ? 1 access issue. Relative to those with private insurance, adults with Medicaid (OR 1.05; 95% CI 0.79-1.40) and those with Medicare (OR 0.98; 95% CI 0.66-1.47) were similarly likely to seek ED care due to an acuity issue. Adults with Medicaid (OR 1.50; 95% CI 1.06-2.13) and Medicaid + Medicare (dual eligible) (OR 1.94; 95% CI 1.18-3.19) were more likely than those with private insurance to seek ED care for access issues.ConclusionVariability in reasons for seeking ED care among discharged patients by health insurance type may be driven more by lack of access to alternate care, rather than by differences in patient-perceived acuity. Policymakers should focus on increasing access to alternate sites of care, particularly for Medicaid beneficiaries, as well as strategies to increase care coordination that involve ED patients and providers.

Dataset Information

Medicaid increases emergency-department use: evidence from Oregon's Health Insurance Experiment.

Publications

Medicaid increases emergency-department use: evidence from Oregon's Health Insurance Experiment.

Similar Datasets

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