How Many Are Uninsured? Trends Among U.S. Adults,

How Many Are Uninsured? Trends Among U.S. Adults,
2003 and 2007. The Commonwealth Fund. June 10, 2008.

The report found that the number of uninsured adults increased from 16 million in 2003 to 25 million in 2007.

Middle and higher-income families were hit hardest by the increase; underinsured rates nearly tripled for those with incomes above 200 percent of the federal poverty line (i.e., annual family income of $40,000 or higher). Underinsured rates are now at double-digit levels for families with household income in the 200-400 percent of poverty range, which is considered to be solidly middle class.