两所中学高中生结核菌素反应性特点

Characters of the tuberculin reactivity in the high school students of two high schools

目的了解当地高中生结核菌素反应性状况。方法选医院驻地县两所中学2146名高一年级学生进行标准化PPD试验调查,并对学生性别、年龄及结核病流行特点进行调查分析。结果74.8%的学生集中在16～17岁组,性别女多于男,来源于农村的学生占63.6%。≥5mm总阳性率28.6%,≥15mm为9.0%。930名无卡痕学生PPD反应在≥5mm、≥10mm、≥15mm和≥20mm分别为20.3%、12.0%、6.6%和2.9%,有卡痕有结核接触史和既往史学生的结素反应均明显高于无卡痕无结核接触史和既往史者。结论把高中新入学学生作为当地结素试验对象,可将≥15mm结素反应者列为预防性治疗对象,以减少结核发病。

Objective To find out tuberculin reactivity of the students from the local high school. Methods 2146 students of Grade One of 2 high schools of Huailai were taken the standardized PPD and invested on the age, sex, and tuberculosis epidemiological characteristics of these students. Result 74.8% students were at the age group 16 - 17, females are more than males in numbers ,63.6% students living in rural areas,total positive rate（ ≥5 mm and 915 mm） were 28. 6% and 9. 0% respectively. The positive rate of PPD test （ ≥5 mm,≥10 mm,≥15 mm ands〉20 mm） in 930 students without BCG scare were 20. 3% ,12. 0% ,6. 6% ,and 2. 9% respectively. The positive rate in students with BCG scare was higher than that of students without,and that in students with TB contact history was higher than that of student without. Conclusion The high school students shoud be the target of local tuberculin tests and tuberculin positive reaction ≥15 mm can be classified as preventative therapy target to prevent TB emergence.