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[The analysis of the allergens in 576 patients with allergic rhinitis in Qingyang of Gansu Province].

OBJECTIVE
To investigate the allergens distribution of 576 allergic rhinitis patients in Qingyang, and to provide basic epidemiologic information for the prevention and treatment of allergic rhinitis.


METHOD
Skin prick test was done to all the 576 patients with allergic rhinitis with 28 kinds of allergens.


RESULT
Four hundred and eighty cases (83.3%) showed positive reaction to at least one allergen of 28 allergens. The most common allergens were Magwort (73.3%), Giant Ragweed (55.0%) Tree II (51.7%), Tree I (48.3%) Dermatophagoides farinae (43.3%) and Dermatophagoides pteronyssinus (36.7%). Moreover. the positivity decreased with age. There was no difference between male and female.


CONCLUSION
The study shows that Magwort. Giant ragweed and tree II are the most important allergens on Qingyang district.