泉州市部分中学学生结核菌素试验反应情况分析

Analysis of PPD test reactions of some high school students in Quanzhou City

目的了解泉州市部分中学生结核菌素试验的反应现状,为上级主管部门制定在这一特殊人群中开展肺结核病防治工作的政策措施提供科学依据。方法抽查部分中学高一新生,用皮内注射卡介菌纯蛋白衍生物(PPD)并观察反应结果,检查卡痕和询问结核病接触史。结果 2年共抽查13 501人,PPD试验阳性反应6 650人(49.3%),强阳性反应729人(5.4%),2年间阳性率(χ2=0.57,P>0.05)与强阳性率(χ2=3.05,P>0.05)均无明显变化;卡介苗接种率79.7%;经询问在家庭中曾与结核病患者有接触史的有495人,为总人数的3.7%。经统计学分析,该次PPD试验结果与初种卡介苗(卡痕)无显著关系(χ2=3.01,P>0.05),有接触史者其阳性率高。结论该市高一新生PPD试验阳性率较高,2年结果无明显差异,应加强学校结核病防治工作,积极落实学校结核病防治工作的有关要求。

[ Objective] To understand the PPD test reactions of some secondary school students in Quanzh0u City, and provide sci- entific evidence for developing measures for carrying out TB control in this special population. [ Methods ] A part of high school freshman were recruited for PPD test, examined for BCG scar and asked for. TB exposure history. [Results] A total of 13 501 students were sampled in 2 years, 6 650 （49.3%）were PPD test positive, 729 （5.4%） were strongly positive . The positive rate （ X2 = 0.57, P 〉 0.05 ） and strongly positive rate （ X2 = 3.05, P 〉 0.05 ） were not change obviously in 2 years. BCG vaccination rate was 79.7%. The inquisition showed 495 （3.7%） had exposure history to TB patients. The statistical analysis indicated that the PPD test results were not significantly related with BCG scar（ X2 = 3.01 ,P 〉 0.05）, the students with exposure history had high positive rate. [ Conelusion]PPD test positive rate is relatively high among high school freshman in this City, with no significant difference in 2 years. It is necessary to strengthen school TB prevention and control, and actively implement the relevant require- ments of the school TB prevention.