目的 分析过敏性疾病儿童过敏原的种类和特点。方法 采用国产欧博克试剂盒(酶联免疫法)对174例过敏性疾病患儿进行食物及吸入性过敏原特异性IgE(SIgE)检测,比较≤3岁和＞3岁两组患儿SIgE阳性率。结果 过敏性疾病患儿SIgE检测阳性率达72.99%(127/174),排名前2位的是:屋尘螨/粉尘螨(39.66%,69/174)、屋尘(26.44%,46/174)。≤3岁组食物性过敏原阳性率33.93%(19/56),吸入性过敏原阳性率44.64%(25/56),＞3岁组食物性过敏原阳性率41.53%(49/118),吸入性过敏原阳性率61.02%(72/118);127例阳性病例中, 96例对≥2种过敏原呈阳性反应, 69例SIgE等级≥3,＞3岁组混合过敏率及高度过敏率高于≤3岁组。结论 广州地区过敏性疾病儿童以吸入性过敏为主,主要过敏原是屋尘螨/粉尘螨、屋尘,随着年龄增长,吸入性过敏原阳性率升高,混合过敏的机率增加。建议对过敏疾病患儿进行过敏原检测,以制定相应环境干预措施及特异性脱敏治疗方案。

Objective To inverstigate the types and characteristics of allergen in children in different age with allergic diseases. Methods The food and inhalant allergen-specifi IgE(SIgE) were detected by the domestic specific IgE Screening ELISA kit in 174 children with allergic diseases,and were compared among children aged ≤3 and ＞3 years. Results 72.99%(127/174) of children with allergic diseases were positive for SIgE,the common allergen were dermatophagoides pteronyssinus/dermatophagoides farina and dust. In the group of ≤3 years old,the positives rate of food allergens was 33.93%(19/56),and the positives rate of aeroallergens was 44.65%(25/56).In the group of >3 years old, the positives rate of food allergens was 41.53%(49/118), the positives rate of aeroallergens was 61.02%(72/118).96 of 127(75.59%) positive cases yielded positive result to more than 2 allergens.69 patients's SIgE levels greater were ≥ 3,the mixed allergic rate and highly allergic rate of the children aged ＞3 years were higher than the children aged ≤3 years. Conclusion The children with allergic diseases in Guangzhou area were allergic mainly to inhalant allergens,especially to dermatophagoides pteronyssinus/dermatophagoides farina and dust.Aeroallergens are becoming the allergens as children grow with ages, and probability of mixture allergy is increasing.