The estimates shown in Table A-2 are based on the percentage of people for whom each source of coverage was reported in the CPE-ASEC for CY 2013. These percentages sum to more than 100 percent because some people report multiple forms of coverage. Some of the elderly and disabled, for example, are “dual eligibles” enrolled in both Medicare and Medicaid.29 Many Medicare enrollees, moreover, purchase Medicare Supplemental Health Insurance policies, also known as “Medigap,” to cover costs they would otherwise bear out-of-pocket, 30 and some respondents may have reported such policies in their CPS-ASEC interviews. Because the CPS-ASEC asks about coverage in the prior calendar year, people who had different types of coverage in different parts of the year (for example, people who directly purchased individual market coverage and then obtained jobs providing employer-sponsored coverage) may also report multiple sources of coverage.
Table A-2: Sources of Health Insurance Coverage in 2013
Note: Percentages total more than 100 because more than one type of coverage was reported or imputed for some respondents.
Source: ASPE calculations from Jessica C. Smith and Carla Medalia, U.S. Census Bureau, Current Population Reports, P60-250, Health Insurance Coverage in the United States: 2013, U.S. Government Printing Office, Washington, DC, 2014 (http://www.census.gov/content/dam/Census/library/publications/2014/demo/..., accessed October 27, 2014).
29 Centers for Medicare & Medicaid Services, Center for Medicaid & CHIP Services, “Seniors & Medicare and Medicaid Enrollees” (http://www.medicaid.gov/Medicaid-CHIP-Program-Information/By-Population/..., accessed October 27, 2014).
30 Steven Sheingold, Adele Shartzer, and Dan Ly, Variation and Trends in Medigap Premiums, ASPE Report, December 2011 (http://aspe.hhs.gov/health/reports/2011/MedigapPremiums/, accessed October 27, 2014).