Approximately 10.3 million American adults gained health insurance coverage between January 2012 and June 2014, according to a study published in The New England Journal of Medicine.
The researchers analyzed nationally representative survey data from January 2012 to June 2013. Their primary data set was from the Gallup-Healthways Well Being Index. This data was compared with HHS enrollment statistics for Medicaid and marketplace coverage in each state during the first open enrollment period for the Patient Protection and Affordable Care Act health insurance exchanges.
The researchers found a significant decline in the uninsured rate among nonelderly adults during the PPACA exchanges' first open enrollment period. The uninsured rate declined by 5.2 percentage points by the second quarter of 2014, a 26 percent relative decline from the 2012 to 2013 period, according to the study.
Furthermore, according to the study, states that expanded Medicaid predictably saw a larger drop (6 percentage points) in the uninsured rate for people with incomes at or below 138 percent of the federal poverty level than states that didn't expand Medicaid (3.1 percentage points).
For more information, read the full study here.
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