Studies look at exchange premiums, Medicaid decisions.

The article discusses studies related to medical care in the U.S. as of September 2013. A study by the Kaiser Family Foundation focused on the 2014 premiums and tax credits for people who will purchase health insurance through exchanges in Washington, D.C. and some U.S. states. A report by Commonwealth Fund found that about one-third of U.S. adults from 19-64 years old were either continuously uninsured or spent a period of time uninsured between 2010 and 2012.