Statistical Observation on the Patients with Urticaria and Skin-test with Allergen-extract

Abstract

Statistical observations on 67 patients in the author's clinic from June to December 1961 were carried out. The results obtained were as follows; Clinical form: 50 cases of urticaria acuta, 5 cases of Urticaria chronica, 6 cases of Urticaria with temperature and one is the other type of Urticaria. Sex and age: Female exceeds male in number. As for the age, the 10-30 years old was most numerous. Seasonal frequency: It is most frequent in summer, next in autumn, then spring and winter. Further observations were carried out on the ethiology, symptom and some clinical examinations. As the skin-test 0.02 ml of the extracts were injected into the inner side of the forearms and examined the diameter of the papules and redness 15 minutes after injection. The patients showed positive response by the extracts sf hausedust, shellfish and meat in the highest rate.