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Participant characteristics of the study population.
| Total | Antihistamines Use | No Antihistamines Use | |
|---|---|---|---|
| Sex, n (%) | |||
| Male | 13 (40.6) | 4 (30.8) | 9 (69.2) |
| Female | 19 (59.4) | 9 (47.4) | 10 (52.6) |
| Age groups (years), n (%) | |||
| 8–13 | 13 (40.6) | 7 (53.8) | 6 (46.2) |
| 14–21 | 19 (59.4) | 6 (31.6) | 13 (68.4) |
| Race, n (%) | |||
| Hispanic | 32 (100) | 13 (40.6) | 19 (59.4) |
