|  |  | Birch | Grass |
---|
Patients
|
Age
(range) |
Sex
Male/Female | Symptoms | Spt | IgE class Median(range) | HR class Median(range) | Symptoms | Spt | IgE class Median(range) | HR class Median(range) |
---|
Healthy | 25 (22–43) | 3/7 | 0/10 | 0/10 | 0 (0) | 0 (0) | 0/10 | 0/10 | 0 (0) | 0 (0) |
AS Birch | 25 (24–27) | 1/4 | 0/5 | 5/5 | 0 (0–2) | 2 (0–3) | 0/5 | 0/5 | 0 (0) | 0 (0) |
AS Grass | 25 (22–31) | 1/4 | 0/5 | 0/5 | 0 (0) | 0 (0) | 0/5 | 5/5 | 0 (0–2) | 0 (0–3) |
Allergic Birch | 27 (25–43) | 4/1 | 5/5 | 5/5 | 3 (2–4) | 3 (2–3) | 2/5 | 2/5 | 0 (0–4) | 2 (0–3) |
Allergic Grass | 26 (24–41) | 3/0 | 1/3 | 1/3 | 0 (0–3) | 0 (0–3) | 3/3 | 3/3 | 4 (2–4) | 3 (0–3) |
- AS: asymptomatically sensitized. Spt: skin prick test. HR: histamine release
- Skin prick tests (performed in duplicate) were considered positive when mean wheal diameter >3 mm. Allergic symptoms were reported in diary cards during the relevant pollen season. Symptoms were considered as pollen allergy when lasting > 7 days or when symptoms were repeatedly elicited when pollen counts exceeded a certain (individual) level [2]. The skin prick test was performed according to the guidelines of European Academy of Allergy and Clinical Immunology [18]. n = 10 for the healthy controls, n = 10 for the asymptomatically sensitized individuals and n = 8 for the allergic individuals.