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中国防痨杂志 ›› 2014, Vol. 36 ›› Issue (7): 542-546.doi: 10.3969/j.issn.1000-6621.2014.07.005

• 论著 • 上一篇    下一篇

BCG-PPD与TB-PPD皮肤试验在大学生结核病筛查中的差异性分析

孟炜丽 罗萍 胡京坤 孙钊 李慧颖 连赫宇   

  1. 100031 北京市西城区疾病预防控制中心结核科(孟炜丽、胡京坤、孙钊、李慧颖);北京结核病控制研究所业务办(罗萍);航天科工集团731医院神经内科(连赫宇)
  • 收稿日期:2014-02-27 出版日期:2014-07-10 发布日期:2014-08-07
  • 通信作者: 罗萍 E-mail:pluo12@126.com

Results analysis of TB screening among university students using BCG-PPD and TB-PPD

MENG Wei-li, LUO Ping, HU Jing-kun, SUN Zhao, LI Hui-ying, LIAN He-yu   

  1. Department of Tuberculosis Control, Xicheng Center for Disease Control and Prevention, Beijing 100031, China
  • Received:2014-02-27 Online:2014-07-10 Published:2014-08-07
  • Contact: LUO Ping E-mail:pluo12@126.com

摘要: 目的 比较卡介菌纯蛋白衍生物(purified protein derivative of BCG,BCG-PPD)与结核菌素纯蛋白衍生物(purified protein derivative of tuberculin,TB-PPD)在大学生结核病筛查中的差异。 方法 回顾性分析2012—2013年北京市西城区3所大学2821名学生的结核病筛查数据。根据使用的PPD试剂种类进行分组,BCG-PPD组学生1386名;TB-PPD组学生1435名。对两组观察者分别进行结核菌素试验,72 h查验硬结平均直径,对强阳性者进行胸部X线检查。采用SPSS 11.5软件进行统计分析,用秩和检验对两组硬结平均直径进行比较,用χ2检验对组间PPD结果分布频度及结核病筛查结果进行比较,当理论值<1时,采用Fisher确切概率法,卡痕与PPD阳性结果间相关性分析采用logistic回归,P<0.05为差异有统计学意义。结果 中位硬结平均直径BCG-PPD组(6 mm)大于TB-PPD组(0 mm),差异有统计学意义(Z=-10.034, P<0.05)。BCG-PPD组的阳性率(54.8%, 759/1386)明显高于TB-PPD组(32.7%,469/1435)(χ2=139.818,P<0.05);PPD强阳性率BCG-PPD组为6.6%(92/1386),高于TB-PPD组的3.4%(49/1435)(χ2=15.425,P<0.05);BCG-PPD组的异常反应发生率为1.9%(27/1386),高于TB-PPD组的0.4%(6/1435),差异有统计学意义(χ2=14.274,P<0.05)。卡痕与PPD阳性结果相关,有卡痕者更容易出现PPD阳性结果(OR=2.046,95%CI=1.630~2.569,P<0.05)。 结论 TB-PPD和BCG-PPD皮肤试验在大学生结核病筛查中的强阳性率和异常反应发生率上存在差别,有进一步探讨的必要。

关键词: 结核, 肺/预防和控制, 卡介菌, 结核菌素试验, 皮肤试验, 学生, 普查

Abstract: Objective  To compare the tuberculosis (TB) screening results among university students by using purified protein derivative of BCG (BCG-PPD) and purified protein derivative of tuberculin (TB-PPD) skin-test.  Methods  The TB screening (PPD skin-test) results obtained from 2821 students in 3 universities, which located in Xicheng district of Beijing, from 2012 to 2013 were retrospectively analyzed. The students were divided into two groups according to the different PPD reagents used: BCG-PPD group consisting of 1386 students who received BCG-PPD skin-test and TB-PPD group consisting of 1435 students who received TB-PPD skin-test. The test result was read at 72 hours and the maximum transverse diameter of the induration was measured. Chest X-ray was performed to the students with strong-positive. SPSS 11.5 software was applied for statistical analysis. Rank sum test was used for comparison of diameter of induration in two groups. Chi-square test was used for comparison of TB screening results and frequency distribution of PPD results in two groups. When the theoretical value was less than 1, Fisher’s exact test was used. The correlation between BCG scar and PPD positive result was analyzed using logistic regression, P<0.05 was considered as statistically significant.  Results The median diameter of induration in BCG-PPD group (6 mm) was larger than that in TB-PPD group (0 mm); and the difference was statistically significant (Z=-10.034, P<0.05) between the two groups. The positive rate of BCG-PPD group (54.8%, 759/1386) was significantly higher than that of the TB-PPD group (32.7%, 469/1435) (χ2=139.818, P<0.05); the strong-positive rate of BCG-PPD group (6.6%, 92/1386) was significantly higher than that of the TB-PPD group (3.4%, 49/1435) (χ2=15.425, P<0.05); the adverse reaction rate of the BCG-PPD group (1.9%, 27/1386) was significantly higher than that of the TB-PPD group (0.4%, 6/1435) (χ2=14.274, P<0.05). BCG scar was associated with the PPD positive result; the students with BCG scar were more likely to have PPD positive results (OR=2.046, 95%CI=1.630-2.569, P<0.05).  Conclusion In TB screening among the university students, the strong positive rates and the abnormal reaction rates of TB-PPD and BCG-PPD skin test were dif-ferences. Further research is needed to be conducted.

Key words: Tuberculosis, pulmonary/prevention &, control, BCG vaccine, Tuberculin test, Skin tests, Students, Mass screening