Table 1 Demographic characteristics of study subjects*
From: Exposure to NO2, CO, and PM2.5 is linked to regional DNA methylation differences in asthma
| Â | Non-asthmatic | Asthmatic |
|---|---|---|
Number of subjects | 121 | 67 |
Total number of male | 59 (48.8%) | 35 (52.2%) |
Median age at enrollment (years) (quartile 1; quartile 3) | 14.7 (12.9; 16.9) | 14.6 (13.1; 16.9) |
Median BMI (kg/m2) (quartile 1; quartile 3) | 21.7 (19.1; 25.6) | 22.0 (18.8; 28.0) |
Total number of rhinitis | 9 (7.8%) | 12 (23.1%) |
Total number of eczema | 11 (9.8%) | 8 (15.7%) |
Total number of African-American | 4 (3.0%21) | 5 (7.5%) |
Total number of Hispanic or Latino | 72 (59.5%) | 27 (40.3%) |
Total number of Caucasian | 34 (28.0%) | 15 (22.4%) |
Total number of mixed race | 5 (4.1%) | 3 (4.5%) |
Total number of not reported | 6 (5.0%) | 17 (25.3%) |
Total number of exposed to secondhand smoke | 12 (10.3%) | 7 (12.5%) |
Total number of smokers | 1 (0.9%) | 0 (0%) |
Total number of household income < $15,000 | 35 (28.9%) | 15 (22.4%) |
Total number of household oncome $15,000–30,000 | 27 (22.3%) | 12 (17.9%) |
Total number of household income $31,000–50,000 | 12 (9.9%) | 3 (4.4%) |
Total number of household income > $50,000 | 35 (28.9%) | 18 (26.9%) |
Total number of household income not reported | 12 (9.9%) | 19 (28.3%) |