Table I.
Demographic characteristics of the atopic dermatitis and non-atopic dermatitis control cohort
| Non-AD controls (N = 48,383) | Atopic dermatitis (N = 28,780) | |
|---|---|---|
| Sex | ||
| Female | 26,453 (54.7%) | 16,819 (58.4%) |
| Race | ||
| Black or African American | 10,797 (22.3%) | 10,811 (37.6%) |
| White or Caucasian | 29,004 (59.9%) | 14,853 (51.6%) |
| Other∗ | 5216 (10.8%) | 2607 (9.1%) |
| Unknown | 3366 (7.0%) | 509 (1.8%) |
| Age at first encounter (years) | ||
| Mean (SD) | 38.6 (23.1) | 26.6 (24.8) |
| Median | 38.4 | 23.6 |
| Q1, Q3 | 20.7, 56.9 | 0.7, 47.8 |
| Range | (0.0-99.7) | (0.0-97.0) |
| Smoking status | ||
| Missing | 20,347 | 8601 |
| Former or current smoker | 10,212 | 6736 |
| Never | 17,824 | 13,443 |
AD, Atopic dermatitis.
∗
Other includes Alaskan native, American Indian, native Hawaiian or other Pacific Islander, or multiracial.