Table 2.
Characteristics of the participants
| Variable | Subjects with asthma (n=18, 28%) |
Subjects without asthma (n=46, 72%) | P- value* |
|---|---|---|---|
| Age at baseline, | 0.43 | ||
| Median (IQR**) | 41.5 (28.8–51.0) | 43.5 (32.5–57.0) | |
| Sex | 0.69 | ||
| Female, n (%) | 10/18 (56) | 23/46 (50) | |
| Race/Ethnicity | 1.00 | ||
| White, n (%) | 16/18 (89) | 42/46 (91) | |
| Non-white, n (%) | 2/18 (11) | 4/46 (9) | |
| Years of Education*** | 0.80 | ||
| Median (IQR) | 16 (13.5–16.5) | 16 (14.0–17.0) | |
| Any atopic condition (atopic dermatitis and/or allergic rhinitis), n (%) | |||
| 16/18 (89) | 21/44 (48) | <0.01 |
*
P value was calculated by χ2 test for categorical variables or Wilcoxon Rank Sum test for continuous variables between groups.
**
IQR, Inter-quartile range between 25th and 75th percentile.
***
Missing education information for two subjects without asthma.