Why Medicaid patients use the emergency department for primary care
A study from Science found that those on Medicaid in Oregon made 40% more visits to the emergency department.
The Oregon Health Insurance Experiment included about 90,000 low-income people and assigned 30,000 of them to Medicaid by lottery. It’s essentially a naturally-occurring randomized controlled trial.
The result seems to have caught the public policy experts by off guard:
“I suspect that the finding will be surprising to many in the policy …




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