Table 130Medicaid coverage among persons under 65 years of age, according to selected characteristics: United States, selected years 1984-2002
[Data are based on household interviews of a sample of the civilian noninstitutionalized population] Click here for spreadsheet version

Characteristic 1984 1989 1995 1997 1 1998 1999 2000 2001 2002
Number in millions
Percent of population
Total, age adjusted2,
Total, crude26.
Under 18 years11.912.621.518.417.118.119.421.224.5
 Under 6 years15.515.729.324.722.423.524.325.829.6
 6–17 years10.110.917.415.214.515.517.019.022.1
18–44 years5.
 18–24 years6.46.810.
 25–34 years5.
 35–44 years3.
45–64 years3.
 45–54 years3.
 55–64 years3.
White only4.
Black or African American only18.917.826.020.519.618.719.420.421.5
American Indian and Alaska Native only###
Asian only9.111.310.
Native Hawaiian and Other Pacific Islander only- - -- - -- - -- - -- - -****
2 or more races- - -- - -- - -- - -- - -15.815.614.617.5
Hispanic origin and race3,4
Hispanic or Latino12.212.719.816.
 Puerto Rican28.626.931.128.924.527.027.628.527.6
 Other Hispanic or Latino7.410.416.913.913.913.814.115.018.7
Not Hispanic or Latino6.26.610.
 White only3.
 Black or African American only19.117.825.620.319.418.719.320.321.5
Age and percent of poverty level5
All ages:3
 Below 100 percent30.535.344.737.135.735.335.236.739.4
 100–149 percent7.511.018.016.715.217.419.121.725.2
 150–199 percent3.
 200 percent or more0.
Under 18 years:
 Below 100 percent43.147.866.
 100–149 percent9.012.327.228.725.131.435.038.947.0
 150–199 percent4.
 200 percent or more0.
Geographic region3Percent of population
Location of residence3
Within MSA67.
Outside MSA65.97.812.09.99.811.511.912.415.3

#Estimates calculated upon request.

* Estimates are considered unreliable. Data preceded by an asterisk have a relative standard error (RSE) of 20–30 percent. Data not shown have an RSE of greater than 30 percent.

- - - Data not available.


In 1997 the National Health Interview Survey (NHIS) was redesigned, including changes to the questions on health insurance coverage. See Appendix I, National Health Interview Survey and Appendix II, Health insurance coverage.


Includes all other races not shown separately and, in 1984 and 1989, unknown poverty level.


Estimates are for persons under 65 years of age and are age adjusted to the year 2000 standard using three age groups: under 18 years, 18–44 years, and 45–64 years. Age-adjusted estimates in this table may differ from other age-adjusted estimates based on the same data and presented elsewhere if different age groups are used in the adjustment procedure. See Appendix II, Age adjustment.


The race groups, white, black, American Indian and Alaska Native (AI/AN), Asian, Native Hawaiian and Other Pacific Islander, and 2 or more races, include persons of Hispanic and non-Hispanic origin. Persons of Hispanic origin may be of any race. Starting with data year 1999 race-specific estimates are tabulated according to 1997 Standards for Federal data on Race and Ethnicity and are not strictly comparable with estimates for earlier years. The five single race categories plus multiple race categories shown in the table conform to 1997 Standards. The 1999 and later race-specific estimates are for persons who reported only one racial group; the category “2 or more races” includes persons who reported more than one racial group. Prior to data year 1999, data were tabulated according to 1977 Standards with four racial groups and the category “Asian only” included Native Hawaiian and Other Pacific Islander. Estimates for single race categories prior to 1999 included persons who reported one race or, if they reported more than one race, identified one race as best representing their race. The effect of the 1997 Standard on the 1999 estimates can be seen by comparing 1999 data tabulated according to the two Standards. Age-adjusted estimates based on the 1977 Standards of the percent with Medicaid are: 0.1 percentage points higher for the white group; 0.1 percentage points lower for the black group; 0.8 percentage points higher for the Asian and Pacific Islander group; and 0.8 percentage points higher for the AI/AN group than estimates based on the 1997 Standards. See Appendix II, Race.


Poverty status was unknown for 10–11 percent of persons under 65 years of age in 1984 and 1989. Missing family income data were imputed for 15–16 percent of persons under 65 years of age in 1994–96. Starting with Health, United States, 2004 a new methodology for imputing family income was used for data years 1997 and beyond. Missing family income data were imputed for 24 percent of persons under 65 years of age in 1997 and 28–31 percent in 1998 to 2002. Therefore, estimates by poverty for 1997–2001 differ from those in previous editions of Health, United States. See Appendix II, Family income; Poverty level.


MSA is metropolitan statistical area.

NOTES: Medicaid includes other public assistance through 1996. Starting in 1997 includes state-sponsored health plans. Starting in 1999 includes State Children’s Health Insurance Program (SCHIP). In 2002, 9.2 percent of persons under 65 years of age were covered by Medicaid, 1.2 percent by state-sponsored health plans, and 1.4 percent by SCHIP. Standard errors for selected years are available in the spreadsheet version of this table. See www‚Äč Data for additional years are available. See Appendix III.

SOURCES: Centers for Disease Control and Prevention, National Center for Health Statistics, National Health Interview Survey, health insurance supplements (1984, 1989, 1994–1996). Starting in 1997 data are from the family core questionnaires.

From: Trend Tables

Cover of Health, United States, 2004
Health, United States, 2004: With Chartbook on Trends in the Health of Americans.
National Center for Health Statistics (US) .
Hyattsville (MD): National Center for Health Statistics (US); 2004 Sep.

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