Research Article
Different Development Forms of Local Allergic Rhinitis towards Birch
Table 1
Characteristics of the study patients.
| | Active () | Placebo () | value |
| | Age (yrs) | | | 0.48 | | Female (%) | 11 (58) | 12 (70) | 0.07 | | Duration of rhinitis (yrs) | | | 0.32 | | Urban (%) | 13 (68) | 11 (64) | 0.82 | | Mean symptom score in the basement during the birch pollen season | | | 0.49 | | Number of patients with the presence of cough and other asthmatic symptoms during birch pollen season (%) | 12 (63) | 9 (53) | 0.52 | | (i) Cough | 12 (63) | 9 (53) | | | (ii) Wheezing | 9 (47) | 7 (41) | | | (iii) Dyspnea | 6 (32) | 7 (41) | | | (iv) Shortness of breath | 8 (42) | 5 (29) | | | (v) Chest tightness | 5 (47) | 6 (35) | | | A positive result of bronchial reversibility test (%) | 4 (21) | 3 (18) | 0.29 | | Specific nasal IgE to birch pollen in nasal lavage (kU/L) after NPT | | | 0.43 |
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NPT: nasal provocation test.
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