Table 2 Frequency of aeroallergens in ≥20% of patients with perennial and seasonal allergic asthma (according to clinician judgement) (cross-sectional population)
| Allergen |
Patients with perennial allergens (N = 342) |
Patients with seasonal allergens (N = 15) |
|---|---|---|
| Grasses | 174/315 (55.2%) | 9/15 (60.0%) |
| Pellitory | 134/319 (42.0%) | 4/14 (28.6%) |
| Birch | 67/288 (23.3%) | 3/14 (21.4%) |
| Hazel | 46/269 (17.1%) | 3/14 (21.4%) |
| Cypress | 66/285 (23.2%) | 4/13 (30.8%) |
| Olive tree | 92/311 (29.6%) | 3/13 (23.1%) |
| Dermatophagoides | 248/334 (74.3%) | 2/14 (14.3%) |
| Cat epidermal allergen | 97/305 (31.8%) | 1/14 (7.1%) |
| Dog epidermal allergen | 66/299 (22.1%) | 1/14 (7.1%) |