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目的了解当地中学生结核菌素反应性状况。方法选医院驻地怀来县4所中学7299名初高中一年级学生进行标准化PPD试验调查,并对学生年龄、性别、居住来源及结核病流行特点进行调查分析。结果初一年级学生多集中在13～14岁组(80.2%),高一年级学生多集中在16～17岁组(74.8%),性别女稍多于男,来源于农村的学生占59.3%,≥5mm总阳性率24.7%,≥15mm为7.9%。3149名无卡痕学生PPD反应≥5mm、≥10mm、≥15mm和≥20mm分别为17.3%、11.2%、6.1%和2.9%,有卡痕有结核既往史和接触史学生的结素反应均明显高于无卡痕无结核既往史和接触史者。结论把初高中新入学学生作为当地结素试验对象,应将≥15mm结素反应者列为预防性治疗对象,以减少结核发病。
Objective To understand the status of tuberculin reactivity in local middle school students. Methods A total of 7,299 first year freshmen in four secondary schools in Huailai County, a hospital resident, were investigated by standardized PPD test. The age, sex, origin of living and the prevalence of tuberculosis were investigated. Results The first grade students mostly concentrated in the age group of 13-14 years old (80.2%), the first grade students mostly concentrated in the age group of 16-17 years (74.8%), the gender was slightly more than the male, the students from rural areas accounted for 59.3% , ≥5mm total positive rate of 24.7%, ≥15mm of 7.9%. 3149 students without card marks had a PPD response of ≥5mm, ≥10mm, ≥15mm and ≥20mm respectively 17.3%, 11.2%, 6.1% and 2.9% Higher than the non-scratched without tuberculosis past history and history of exposure. Conclusion As a local high school entrance examination students, high school students should be included in the prevention of the treatment of ≥ 15mm cx in order to reduce the incidence of tuberculosis.