Medicaid expansion slashed uninsured rates in Diabetes Belt, study finds

Medicaid expansion dramatically reduced the numbers of low-income residents without insurance in the Diabetes Belt, a swath of 644 counties across 15 southeastern states (including Virginia) that are stricken with high diabetes rates, a new study has found.

The increase in people with insurance helps address the lack of access to care that is a key contributor to the diabetes epidemic. Prior to the Affordable Care Act, the Diabetes Belt counties had higher uninsured rates than other areas, but that was erased by 2014 through Medicaid expansion.

“With increased access to care, patients are more likely to receive the care they need to prevent diabetes or at least slow the progression of the disease,” said Jennifer M. Lobo, Ph.D., of the University of Virginia School of Medicine’s Department of Public Health Sciences. “Addressing complications of diabetes as early as possible through regular preventive care can greatly improve quality of life.”

Alarming Diabetes Rates

More than 11% of adults in the Diabetes Belt have the condition, compared with 8.5% elsewhere. The disease is believed to be a significant contributor to the shortened life expectancy seen in the Diabetes Belt.

To get a sense of the impact of Medicaid expansion both in and outside the Belt, the researchers looked at uninsured rates among adults age 64 or younger with household incomes equal to or less than 138% percent of the federal poverty line. In 2012, 39.3% of those in the Diabetes Belt were uninsured, compared with 33.9% outside the belt. Those numbers fell to 13.1% and 15.1%, respectively, in 2016.

By 2016, uninsured rates were 15% higher in states that had not expanded Medicaid, the researchers report. “States that expanded Medicaid achieved an absolute reduction of 20 percentage points in uninsured rates, while states that did not achieved 13% reduction,” the researchers write in a new paper outlining their findings.

Broadening their scope to look at all income levels, the researchers found that Medicaid expansion led to a 4.8% overall reduction of the uninsured rate in the Diabetes Belt.

While additional research is needed to determine if Medicaid expansion led to improved care and outcomes, the researchers conclude: “Medicaid expansion has had its intended effect of increasing insurance coverage among the low-income populations.” They note, “Eight states that contain Diabetes Belt counties are not expanding Medicaid at this time. Medicaid expansion may help realize more equity in insurance coverage between Belt and non-Belt areas in these states.”

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