Table 1.
Baseline characteristics of study patients (N = 101)
| Demographic characteristics | |
| Age (years), mean (SD) | 28.0 (14.6) |
| Age groups, No. (%) | |
| Children (≤ 14 years) | 28 (27.7) |
| Adults (> 14 years) | 73 (72.3) |
| Gender, No. (%) | |
| Female | 48 (47.5) |
| Male | 53 (52.5) |
| Clinical characteristics | |
| Time from onset of symptoms to diagnosis (years), mean (SD) | 8.6 (7.1) |
| Frequency of symptoms, No. (%) | |
| Perennial | 69 (68.3) |
| Seasonal | 32 (31.7) |
| Respiratory allergic diseasea, No. (%) | |
| Rhinitis | 74 (74.7) |
| Asthma | 2 (2.0) |
| Rhinitis and asthma | 23 (23.2) |
| Severity of rhinitis, No. (%) | |
| Mild intermittent | 28 (29.5) |
| Mild persistent | 31 (32.6) |
| Moderate-severe intermittent | 7 (7.4) |
| Moderate-severe persistent | 29 (30.5) |
| Severity of asthma, No. (%) | |
| Mild intermittent | 14 (56.0) |
| Mild persistent | 4 (16.0) |
| Moderate intermittent | 0 (0.0) |
| Moderate persistent | 7 (28.0) |
| Food allergy, No. (%) | 7 (6.9) |
| History of previous allergy, No. (%) | 9 (9.0) |
| Family history of allergy, No. (%) | 41 (41.0) |
aCalculated over 99 patients