Table 1.
Study population characteristics (n=109)
| Characteristic (n=109) | |
|---|---|
| Male, no. (%) | 58 (53) |
| Mean age at tree nut allergy/sensitization diagnosis, years (median) | 4.5 (2.5) |
| Mean age at initial tree nut oral food challenge, years (median) | 11.2 (10.3) |
| a Tree nut allergic (any symptom at initial presentation), no. (%) | 54 (50) |
| Anaphylaxis, no. (%) | 15 (28) |
| Skin symptoms (hives, itching, flushing, rash), no. (%) | 36 (67) |
| Facial swelling, no. (%) | 16 (30) |
| Oropharyngeal symptoms (tongue or throat pruritus/swelling), no. (%) | 13 (24) |
| Respiratory symptoms (cough, wheezing, shortness of breath), no. (%) | 11 (20) |
| Vomiting, no. (%) | 13 (24) |
| Tree nut sensitized (no clinical symptoms), no. (%) | 43 (40) |
| Tree nut avoidance due to other food allergy (despite negative testing), no. (%) | 13 (12) |
| Concurrent food allergy, no. (%) | 65 (60) |
| Peanut allergy, no. (%) | 46 (42) |
| Egg allergy, no. (%) | 10 (9) |
| Milk allergy, no. (%) | 4 (4) |
| Other food allergy, no. (%) | 15 (14) |
| Atopic dermatitis, no. (%) | 42 (39) |
| Allergic rhinitis, no. (%) | 78 (72) |
| Asthma, no. (%) | 44 (40) |
a
These represent the most commonly reported symptoms and not necessarily an isolated single presenting symptom