TABLE 1—
Estimated Demographic Characteristics and Self-Reported Hepatitis B Vaccination Status Nonproxy Interview Respondents with Hepatitis B Virus Testing Performed Who Reported Receiving ≥ 3 or No Doses of Hepatitis B Vaccine: NHANES 1999–2008
| Characteristic | Total No. | rpt+/serol+ | rpt+/serol- | rpt-/serol+ | rpt-/serol- | Weighted % (95% CI) |
| Total | 23 055 | 3585 | 3250 | 1037 | 15183 | … |
| Age at interview, y | ||||||
| 14–19 | 4056 | 1881 | 923 | 326 | 926 | 7.6 (7.1, 8.1) |
| 20–29 | 3401 | 686 | 780 | 203 | 1732 | 17.6 (16.6, 18.5) |
| 30–39 | 3194 | 390 | 543 | 119 | 2142 | 18.4 (17.6, 19.3) |
| 40–49 | 3197 | 291 | 417 | 96 | 2393 | 19.6 (18.8, 20.5) |
| 50–59 | 2609 | 193 | 256 | 99 | 2061 | 15.6 (14.8, 16.4) |
| 60–69 | 3008 | 114 | 219 | 95 | 2580 | 10.5 (9.8, 11.2) |
| ≥ 70 | 3590 | 30 | 112 | 99 | 3349 | 10.7 (10.0, 11.4) |
| Birth year: born before universal infant vaccination recommendation | ||||||
| Before 1930 | 2558 | 12 | 57 | 71 | 2418 | 7.4 (6.8, 8.0) |
| 1930–1939 | 2695 | 64 | 150 | 74 | 2407 | 9.1 (8.5, 9.8) |
| 1940–1949 | 2718 | 158 | 234 | 97 | 2229 | 12.8 (12.1, 13.6) |
| 1950–1959 | 3070 | 259 | 340 | 113 | 2358 | 19.0 (18.1, 19.9) |
| 1960–1969 | 3223 | 328 | 496 | 99 | 2300 | 19.6 (18.6, 20.6) |
| 1970–1979 | 3328 | 468 | 673 | 138 | 2049 | 17.4 (16.5, 18.4) |
| 1980–1990 | 5320 | 2199 | 1274 | 432 | 1415 | 14.2 (13.4, 15.1) |
| Birth year: born after universal infant vaccination recommendation (1991–2005) | 143 | 97 | 26 | 13 | 7 | 0.5 (0.4, 0.6) |
| Sex | ||||||
| Male | 11053 | 1474 | 1543 | 507 | 7529 | 47.4 (46.8, 47.9) |
| Female | 12 002 | 2111 | 1707 | 530 | 7654 | 52.6 (52.1, 53.2) |
| Race/ethnicity | ||||||
| Mexican American | 5333 | 735 | 817 | 254 | 3527 | 7.6 (6.4, 9.0) |
| Other Hispanic | 1236 | 218 | 224 | 76 | 718 | 4.9 (3.7, 6.5) |
| White non-Hispanic | 11 089 | 1558 | 1153 | 370 | 8008 | 72.8 (70.1, 75.4) |
| Black non-Hispanic | 4679 | 891 | 950 | 286 | 2552 | 10.6 (9.1, 12.3) |
| Other/multiple race/ethnicity | 718 | 183 | 106 | 51 | 378 | 4.1 (3.5, 4.9) |
| Place of birth | ||||||
| United States | 18 385 | 3092 | 2570 | 810 | 11 913 | 87.0 (85.2, 88.6) |
| Mexico | 2829 | 211 | 406 | 122 | 2090 | 4.4 (3.8, 5.1) |
| Elsewhere | 1832 | 282 | 274 | 104 | 1172 | 8.6 (7.2, 10.1) |
| Education | ||||||
| < HS graduate | 8590 | 1557 | 1294 | 467 | 5272 | 22.4 (21.3, 23.5) |
| HS graduate/GED | 5301 | 611 | 696 | 223 | 3771 | 25.6 (24.5, 26.8) |
| > HS graduate | 9142 | 1417 | 1258 | 344 | 6123 | 52.0 (50.2, 53.7) |
| Survey years | ||||||
| 1999–2000 | 4301 | 394 | 443 | 210 | 3254 | 19.0 (17.3, 20.8) |
| 2001–2002 | 4865 | 667 | 559 | 223 | 3416 | 19.6 (18.0, 21.3) |
| 2003–2004 | 4538 | 773 | 711 | 176 | 2878 | 20.1 (17.7, 22.8) |
| 2005–2006 | 4565 | 987 | 763 | 225 | 2590 | 20.5 (18.2, 22.9) |
| 2007–2008 | 4786 | 764 | 774 | 203 | 3045 | 20.8 (18.7, 23.1) |
| Self-report of doses received | ||||||
| ≥ 3 doses | 6835 | 3585 | 3250 | 27.8 (26.7, 28.8) | ||
| No doses | 16 220 | 1037 | 15 183 | 72.2 (71.2, 73.3) |
Note. CI = confidence interval; GED = general equivalency diploma; HS = high school; NHANES = National Health and Nutrition Examination Survey; rpt+ = reported receiving at least 3 doses of hepatitis B vaccine; rpt- = reported receiving no doses of hepatitis B vaccine; serol+ = antibody against hepatitis B surface antigen positive and antibody to hepatitis B core antigen negative; serol- = antibody against hepatitis B surface antigen and antibody to hepatitis B core antigen negative.