aNegative or poor refers to household incomes below the Federal poverty line; near poor/low, over the poverty line to just below 200 percent of the poverty line; middle, 200 percent to just below 400 percent of the poverty line; and high, 400 percent of the poverty line and over.
bLess than high school graduate refers to fewer than 12 years of education; high school graduate, 12 years of education; and at least some college, more than 12 years of education.
cSee MEPS entry in the Data Sources Appendix (Appendix A) for more information.
*Data do not meet the criteria for statistical reliability, data quality or confidentiality.
Key: SE: Standard error.
Source: Agency for Healthcare Research and Quality, Center for Financing, Access and Cost Trends, Medical Expenditure Panel Survey.