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  • Title: [Distribution of allergens in patients with allergic rhinitis in Hebei villagers and Tianjin citizens].
    Author: Wang ZH, Lin WS, Wang L, Wang XQ, Chen J, Zhang ZF, Yu JZ.
    Journal: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi; 2012 Oct; 47(10):809-12. PubMed ID: 23302160.
    Abstract:
    OBJECTIVE: To investigate the epidemiology of allergic rhinitis (AR) and the distribution of allergens in villagers who lived in Hebei Province (Hebei villagers) and the citizens who lived in the city of Tianjin (Tianjin citizens). METHODS: From April 2007 to May 2010, face to face investigation and serum specific IgE (sIgE) examination were conducted among Hebei villagers and Tianjin citizens by randomly multi-stage and cluster sampling, and the results were analyzed. RESULTS: A total of 1524 cases were investigated, among them, 1024 cases in Hebei and 500 cases in Tianjin, the prevalence of the sIgE test was 27.2% (279/1024) and 21.2% (106/500), and the difference was of statistical significance (χ(2) = 7.13, P < 0.01). The prevalence of AR was 9.2% (94/1024) and 9.0% (45/500), the difference was of no statistical significance (χ(2) = 0.01, P > 0.05). The most common allergens were dog epithelium and cat epithelium, the next were dust mites, house dust mites, birch and forage grasses in rural areas of Hebei Province. The most common allergens in Tianjin city were dust mites and house dust mites, the next were dog epithelium, cat epithelium, birch and forage grasses. The prevalence of allergens between Hebei villagers and Tianjin citizens had significant difference, which from high to low were house dust mites, dust mites and dog epithelium (χ(2) value were 11.36, 9.14, 5.28, all P < 0.05). The incidence of AR caused by dog epithelium in Hebei was higher than that in Tianjin, however, the dust mites in Tianjin was higher than that in Hebei. CONCLUSIONS: Allergen plays an important role in the prevalence of AR. The allergens have differences not only in areas but also in urban and village. The key factor is contact with allergens frequently.
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