成都6所大中专院校新生结核菌素反应性特点

Characteristic of Tuberculin Reactivity in University and Polytechnic School Students in Chengdu

目的 确定大中专院校学生结核菌素的反应性。方法 对成都 2所大学、4所中专学校共 86 90名大中专生进行结核菌素试验调查。结果 阳性率 30 0 8% ,源于城市学生的结核菌素反应性高于农村 ,大学生高于中专生 ,有卡痕高于无卡痕。PPD硬结平均直径≥ 5mm、≥ 10mm、≥ 15mm、≥ 2 0mm、分别占 39 4 4 %、37 9%、17 0 2 %、5 6 3% ,平均直径 11 16mm。结论 将大中专学生作为成都“目标结核菌素试验”规程的对象 ,将≥2 0mm结核菌素反应者作为预防性治疗的界限。

Objective To determine the characteristic of tuberculin reactivity in university and polytechnic school students in Chengdu.Methods Investigate Standardized thberculin testing with PPD5TU,in 8690 students of 2 universities and 4 polytechnic school Chengdu.Results The positive rate is 30.08.PPD reaction in ≥5mm?≥10mm?≥15mm?≥20mm?PPD were 39 44%?37 9%?17 02%?5 63% respectively.Average diameter 11 16mm.PPD reaction in Students coming from cities was greater than from those rural areas;university students was greater than in polytechnic school students;Students with BCG scar had greater PPD reaction than those without BCG scar.Conclusion Our results show that university and polytechnic school student are considered as subjects of targeted tuberculin testing and the student who have PPD reaction  20mm of duration should be given preventive chemotherapy of tuberculosis.