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目的 了解卡介苗瘢痕 (卡瘢 )的大小在哮喘过敏学生与正常学生间有否差异 ,比较北京城郊学生间卡瘢直径以及喘息过敏症状的差异。方法 应用“国际间儿童哮喘及其它过敏性疾病对比研究”的统一方案 ,采取整群抽样的方法 ,对北京城区 819名学生及北京郊区 10 4 4名学生进行问卷调查、皮肤变应原点刺试验 (SPT)及卡瘢直径的检测。结果 (1)对于问卷回答既往有喘息史、近12个月有喘息症状、既往哮喘史、花粉症史、过敏性皮炎史、湿疹史、变应性鼻炎史、SPT有特应性及高敏感性、序列试验确诊哮喘以上 10项指标的阳性组学生卡瘢平均直径为 (7 0± 2 1)mm～ (8 8± 2 8)mm ,阴性组学生卡瘢平均直径为 (7 2± 2 7)mm～ (8 2± 2 2 )mm ,每项指标阳性组与阴性组卡瘢直径间的比较差异均无显著性 (P >0 0 5 ) ;(2 )郊区学生卡瘢平均直径为 (8 2± 2 3)mm ,城区学生为(7 3± 2 9)mm ,城市与郊区比较差异有显著性 (P <0 0 1) ;对于问卷回答既往有喘息史、近 12个月有喘息症状、既往哮喘史、花粉症史、过敏性皮炎史、湿疹史、变应性鼻炎史、SPT有特应性 8项指标 ,郊区学生的阳性率为 0 6 %～ 11 4 % ,城区学生的阳性率为 3 1%～ 35 7% ,城市与郊区比较差异均有显著性 (P <0 0 1)。结论 在相同生活环境?
Objective To understand whether the size of BCG scar (kappa scar) is different between allergic asthma students and normal students, and to compare the differences of scar diameter and symptoms of wheezing allergy among suburban students in Beijing. Methods Using the unified international program “Comparative Study on Childhood Asthma and Other Allergic Diseases”, a cluster sampling method was used to survey 814 students in Beijing urban area and 1044 students in Beijing suburbs. The skin allergen prick test (SPT) and card scar diameter test. Results (1) There was a history of wheezing in the questionnaire, past wheezing symptoms, past history of asthma, history of hay fever, history of allergic dermatitis, history of eczema, history of allergic rhinitis, SPT were atopic and hypersensitive The average diameter of card kyphosis in positive group was (70 ± 2 1) mm ~ (8 8 ± 2 8) mm, while in negative group, the mean card kyphosis in negative group was (7 2 ± 2) (8 2 ± 2 2) mm respectively. There was no significant difference in the diameter of scar between the positive group and the negative group (P> 0.05). (2) The average diameter of the card scar in suburban students was (82 ± 23) mm in urban area, and (73 ± 29) mm in urban area. The difference between urban and suburban areas was significant (P <0.01). For the past 12 months there was a history of wheezing Wheezing symptoms, past history of asthma, history of hay fever, history of atopic dermatitis, history of eczema, history of allergic rhinitis and SPT. The positive rate of suburban students was 0 6% ~ 11 4%. Urban students The positive rate was 31% ~ 35 7%, the difference between the city and the suburbs was significant (P <0.01). Concluded in the same living environment?