Table 1. Subject characteristics (n=79,667).
| Variable | No eczema | Eczema | P-value# |
|---|---|---|---|
| Age (yr) – mean (95% CI) | 8.4 (8.3–8.5) | 7.5 (7.3–7.7) | < 0.0001 |
| Race/ethnicity – no. (%) | < 0.0001 | ||
| African-American | 6495 (13.5) | 1618 (22.2) | |
| Hispanic | 8582 (20.4) | 1215 (15.6) | |
| White | 46777 (57.1) | 6326 (52.5) | |
| Other/mixed | 6186 (9.0) | 1079 (9.7) | |
| Female sex – no. (%) | 33165 (48.3) | 5016 (49.8) | 0.25 |
| Household income (Poverty level) – no. (%) | 0.76 | ||
| 0 – 99% | 8023 (18.2) | 1253 (17.5) | |
| 100 – 199% | 11356 (20.4) | 1756 (20.4) | |
| 200 – 399% | 22966 (30.9) | 3478 (32.0) | |
| ≥400% | 26835 (30.5) | 3921 (30.1) |
#
Rao-Scott chi square test.
Parental refusal to answer a particular question or response of “don't know” occurred for the questions pertaining to eczema in 79 (0.1%), age in 0 (0.0%), race/ethnicity in 76 (0.1%), sex in 92 (0.2%), and household income in 0 (0.0%), respectively.