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Subject characteristics.
| Subject variables | Data |
|---|---|
| Age (years), mean (range) | 13.5 (9–18) |
| Gender, no. (%) | |
| Female | 14 (31) |
| Male | 31 (69) |
| Race, no. (%) | |
| Hispanic | 26 (58) |
| White | 14 (31) |
| Black | 5 (11) |
| Anti-inflammatory medications, no. (%) | |
| None | 14 (31) |
| Inhaled corticosteroids | 19 (42) |
| Antileukotrienes alone | 2 (4) |
| Antileukotrienes plus inhaled corticosteroids | 10 (22) |
| FENO (ppb), mean±SD | 25.6±25.1 |
