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Insuring low-income adults: does public coverage crowd out private?
1Department of Family and Preventive Medicine, University of California, San Diego, La Jolla, USA.
Health Affairs (Project Hope)
|March 20, 2002
Summary
Subsidized public health insurance programs in four states reduced uninsured rates for low-income adults. However, these programs had minimal impact on private coverage and significant coverage gaps remained.
Area of Science:
- Health Services Research
- Public Health Policy
- Economics of Health Insurance
Background:
- Mid-1990s saw the implementation of subsidized health insurance programs in Minnesota, Washington State, Oregon, and Tennessee.
- These programs aimed to cover low-income individuals not eligible for Medicaid.
Purpose of the Study:
- To evaluate the impact of these state-level subsidized insurance programs on the health insurance status of low-income adults.
- To analyze the effects on both public and private insurance coverage rates.
Main Methods:
- Estimation of program effects on health insurance status.
- Analysis stratified by income relative to the federal poverty level (FPL).
Main Results:
- For adults below 100% FPL, subsidized public coverage significantly reduced uninsurance with minimal effect on private insurance.
- For adults between 100%-200% FPL, public coverage reduced uninsurance but also crowded out some private insurance.
- Approximately 30% of low-income adults remained uninsured even after program implementation.
Conclusions:
- Subsidized public health insurance programs can effectively reduce uninsurance among the lowest income groups.
- Crowding out of private insurance is a consideration for programs targeting those with incomes up to 200% FPL.
- Despite program successes, significant gaps in health insurance coverage persist for low-income populations.