In 2008, Oregon established a lottery system for expanding Medicaid to low-income individuals on the Medicaid waiting list. Researchers analyzed two years of data to determine the clinical and health utilization effects. Results showed the probability of using outpatient services increase by roughly 35 percent and the probability of using prescription drugs increased approximately 15 percent. In addition, Medicaid enrollees were more likely to report using preventive care, with 50 percent more cholesterol monitoring procedures and 100 percent more mammograms.
However, the expansion did not significantly affect the prevalence or diagnosis of hypertension or high cholesterol levels, according to the study.
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