万县卫生学校学生PPD试验结果分析

ANALYSIS OF THE PPD TEST OF STUDENTS IN WANXIAN HEALTH SCHOOL

对3323名学生进行了PPD试验，阳性率49．38％，其中男性45．36％，女性50．72％，有统计差异；强阳性率男性4．97％，女性12．01％．有统计差异；城市生阳性率66．29％．农村生阳性率45．55％，有统计差异。对PPD试验阴性者补种卡介苗，阳转率为49．68％。认为对在校生进行PPD试验及对阴性者补种卡介苗是十分重要的防治结核的措施。

PPD tests were carried out in 3323 students. The positive rate is 49. 38%, and the positive rates for male testeesand female ones are 45. 36% and 50. 72% respectively, and statistical difference exists; strong positive rates for males and femalesare 4. 97% and 12. 01% respectively, and statistical difference exists; the positive rate for urban testees is 66. 29%, for testeesfrom rural areas 45. 55%, and statistical difference exists. The testees with negative PPD results were revaccinated with BCG,49. 68% of whom turned to have positive PPD. It is suggested that carrying out PPD tests among students and revaccinating withBCG for the testees with negative PPD are very important measures to prevent tuberculosis.