Table 2.
Summary Results From 5 Questions Common to BRFSS and NHIS Among Respondents Aged 18 or Older
| Question/Characteristic | BRFSS | NHIS | Statistic |
|---|---|---|---|
| Fair or poor health status | % (95% CI) | % (95% CI) | z Test (P) |
| Overall | 16.4 (16.2-16.7) | 12.3 (11.8-12.7) | 15.45 (<.001) |
| Aged 18-34 y | 9.1 (8.6-9.6) | 4.5 (4.0-5.0) | 13.37 (<.001) |
| Aged 35-54 y | 14.7 (14.2-15.1) | 10.5 (9.9-11.1) | 10.92 (<.001) |
| Aged ≥55 y | 26.7 (26.2-27.2) | 22.9 (22.0-23.9) | 6.97 (<.001) |
| Male | 15.2 (14.7-15.6) | 11.4 (10.8-12.0) | 10.19 (<.001) |
| Female | 17.6 (17.3-18.0) | 13.1 (12.5-13.7) | 12.64 (<.001) |
| White non-Hispanic | 13.7 (13.5-14.0) | 11.4 (10.9-12.0) | 7.78 (<.001) |
| Black non-Hispanic | 19.9 (19.0-20.8) | 18.0 (16.6-19.5) | 2.15 (.03) |
| Hispanic | 27.9 (26.7-29.2) | 13.0 (11.9-14.1) | 17.57 (<.001) |
| Other non-Hispanic | 14.1 (12.8-15.4) | 9.3 (7.4-11.8) | 3.64 (<.001) |
| <High school diploma | 39.0 (37.8-40.2) | 25.9 (24.5-27.4) | 13.86 (<.001) |
| High school diploma or some college | 16.5 (16.2-16.9) | 11.9 (11.3-12.5) | 13.29 (<.001) |
| ≥College diploma | 7.3 (7.0-7.6) | 6.1 (5.6-6.7) | 3.73 (<.001) |
| Ever told have asthma | % (95% CI) | % (95% CI) | z Test (P) |
| Overall | 13.4 (13.1-13.6) | 9.9 (9.5-10.3) | 14.09 (<.001) |
| Aged 18-34 y | 15.3 (14.8-15.9) | 10.3 (9.6-11.1) | 10.41 (<.001) |
| Aged 35-54 y | 12.8 (12.4-13.2) | 9.6 (9.0-10.2) | 9.07 (<.001) |
| Aged ≥55 y | 12.2 (11.8-12.5) | 9.9 (9.3-10.6) | 5.69 (<.001) |
| Male | 11.6 (11.3-12.0) | 8.5 (7.9-9.1) | 8.64 (<.001) |
| Female | 15.0 (14.7-15.4) | 11.2 (10.7-11.8) | 11.53 (<.001) |
| White non-Hispanic | 13.5 (13.2-13.8) | 10.2 (9.7-10.8) | 11.18 (<.001) |
| Black non-Hispanic | 14.8 (14.0-15.6) | 11.3 (10.2-12.6) | 4.63 (<.001) |
| Hispanic | 11.8 (11.0 -12.7) | 7.5 (6.6-8.5) | 6.71 (<.001) |
| Other non-Hispanic | 14.0 (12.7-15.5) | 7.7 (6.1-9.7) | 5.42 (<.001) |
| <High school diploma | 14.3 (13.5-15.1) | 10.7 (9.8-11.8) | 5.39 (<.001) |
| High school diploma or some college | 13.6 (13.2-13.9) | 10.0 (9.4-10.7) | 9.96 (<.001) |
| ≥College diploma | 12.8 (12.4-13.2) | 9.5 (8.9-10.1) | 8.55 (<.001) |
| Ever had HIV test | % (95% CI) | % (95% CI) | z Test (P) |
| Overall | 43.8 (43.4-44.2) | 34.6 (33.9-35.3) | 21.51 (<.001) |
| Aged 18-34 y | 51.6 (50.8-52.4) | 43.9 (42.5-45.3) | 9.56 (<.001) |
| Aged 35-54 y | 44.1 (43.5-44.7) | 40.6 (39.4-41.8) | 5.24 (<.001) |
| Aged ≥55 y | 23.6 (22.9-24.5) | 16.5 (15.6-17.4) | 11.73 (<.001) |
| Male | 41.2 (40.6-41.9) | 31.7 (30.7-32.7) | 15.96 (<.001) |
| Female | 46.2 (45.7-46.8) | 37.3 (36.4-38.3) | 16.06 (<.001) |
| White non-Hispanic | 40.3 (39.9-40.7) | 31.5 (30.6-32.4) | 17.95 (<.001) |
| Black non-Hispanic | 62.6 (61.4-63.9) | 51.4 (49.5-53.2) | 9.87 (<.001) |
| Hispanic | 45.9 (44.4-47.30 | 38.2 (36.5-39.9) | 6.80 (<.001) |
| Other non-Hispanic | 43.3 (41.1-45.6) | 32.7 (29.5-36.1) | 5.21 (<.001) |
| <High school diploma | 41.8 (40.3-43.3) | 30.7 (29.1-32.4) | 9.84 (<.001) |
| High school diploma or some college | 43.1 (42.6-43.7) | 32.8 (31.8-33.7) | 18.32 (<.001) |
| ≥College diploma | 45.6 (44.9-46.3) | 39.2 (38.0-40.3) | 9.72 (<.001) |
| Binge drinking past 30 days | % (95% CI) | % (95% CI) | z Test (P) |
| Overall | 4.3 (4.2-4.4) | 4.7 (4.5-4.9) | −2.91 (.004) |
| Aged 18-34 y | 4.2 (4.1-4.4) | 4.2 (3.9-4.5) | 0.51 (.61) |
| Aged 35-54 y | 4.1 (4.0-4.3) | 5.0 (4.6-5.4) | −3.97 (<.001) |
| Aged ≥55 y | 5.3 (4.9-5.8) | 6.2 (5.3-7.1) | −1.80 (.07) |
| Male | 4.7 (4.6-4.9) | 5.0 (4.8-5.3) | −1.86 (.06) |
| Female | 3.0 (3.0-3.2) | 3.6 (3.2-3.9) | −2.42 (.02) |
| White non-Hispanic | 4.3 (4.2-4.4) | 4.7 (4.5-5.0) | −2.75 (.006) |
| Black non-Hispanic | 4.8 (4.2-5.3) | 5.7 (4.8-6.6) | −1.73 (.08) |
| Hispanic | 3.8 (3.5-4.1) | 4.1 (3.7-4.6) | −1.07 (.28) |
| Other non-Hispanic | 5.3 (4.3-6.4) | 4.2 (2.6-5.8) | 1.19 (.23) |
| <High school diploma | 5.1 (4.6-5.6) | 5.8 (5.1-6.5) | −1.55 (.12) |
| High school diploma or some college | 4.6 (4.4-4.8) | 4.9 (4.6-5.3) | −1.73 (.08) |
| ≥College diploma | 3.4 (3.3-3.6) | 3.8 (3.4-4.1) | −1.97 (.05) |
| Average number of alcoholic drinks per occasion | No. (95% CI) | No. (95% CI) | z Test (P) |
| Overall | 2.4 (2.4-2.5) | 2.5 (2.4-2.5) | −1.06 (.29) |
| Aged 18-34 y | 3.2 (3.1-3.3) | 3.2 (3.1-3.3) | 0 (>.99) |
| Aged 35-54 y | 2.3 (2.2-2.3) | 2.3 (2.2-2.3) | −0.71 (.48) |
| Aged ≥55 y | 1.7 (1.6-1.7) | 1.8 (1.7-1.8) | −2.85 (.004) |
| Male | 2.9 (2.8-2.9) | 2.9 (2.8-3.0) | −0.80 (.42) |
| Female | 1.9 (1.9-1.9) | 1.9 (1.9-2.0) | −2.68 (.007) |
| White non-Hispanic | 2.3 (2.3-2.3) | 2.4 (2.3-2.4) | −3.79 (<.001) |
| Black non-Hispanic | 2.3 (2.2-2.4) | 2.4 (2.2-2.5) | −0.74 (.46) |
| Hispanic | 3.4 (3.2-3.6) | 3.0 (2.9-3.2) | 3.33 (.001) |
| Other non-Hispanic | 2.6 (2.4-2.8) | 2.2 (2.1-2.4) | 2.39 (.02) |
| <High school diploma | 3.6 (3.4-3.8) | 3.1 (3.0-3.3) | 3.52 (<.001) |
| High school diploma or some college | 2.6 (2.6-2.6) | 2.7 (2.6-2.8) | −1.57 (.12) |
| ≥College diploma | 2.0 (1.9-2.0) | 2.0 (2.0-2.1) | −2.12 (.03) |
BRFSS indicates Behavioral Risk Factor Surveillance System; NHIS, National Health Interview Survey; CI, confidence interval; HIV, human immunodeficiency virus.