摘要
目的 评价全血y-干扰素释放试验(interferongammareleaseassay,IGRA)QuantiFERON虬TBGoldIT试验试剂盒在结核病辅助诊断中的价值。方法搜集重庆市公共卫生医疗救治中心结核科和感染科2014年7月1日至2015年12月31日期间同步进行痰液抗酸杆菌涂片、快速培养(BACTEC^Tm MGITT^TM960)及采用IGRA测定外周血结核分枝杆菌抗原特异性r干扰素(IFN-y)应答水平的1440例患者临床资料,采用卡方检验分析不同类别患者间不同检测技术阳性率的差异,以P〈0.05为差异具有统计学意义。结果与临床诊断结果相比,IGRA检测全血诊断结核病的敏感度为77.6%(716/923),特异度为69.9%(158/226)。与痰涂片[肺结核、肺外结核、HIV感染或AIDS患者并发肺结核的阳性率分别为28.5%(226/792)、5.3%(7/131)、6.1%(6/98)]、液体培养[肺结核、肺外结核、HIV感染或AIDS患者并发肺结核的阳性率分别为40.9%(324/792)、13.0%(17/131)、11.2%(11/98)]检测结果相比,IGRA诊断肺结核[77.0%(610/792)]、肺外结核E80.9%(106/131)]和HIV感染或AIDS患者并发肺结核[50.0%(49/98)]的阳性率更高,差异有统计学意义(与痰涂片比较,X2值分别为373.52、152.51、46.73,P值均〈0.01;与液体培养比较,X2值分别为212.03、121.38、34.68,P值均〈0.01)。结论IGRA检测快速便捷,有着较高的敏感度。IGRA对结核病辅助诊断有一定的价值,尤其对肺结核、肺外结核,以及HIV感染或AIDS并发肺结核患者的诊断有一定意义。
Objective To evaluate the effects of whole blood interferon-y release assay (IGRA) QuantiFERON- TB Gold IT kit (QFT-GIT) in auxiliary diagnosis of tuberculosis. Methods A total 1440 patients from tuberculosis and Infection Departments of Chongqing Public Health Medical Center were collected and detected with sputum smear, Bactec960 and QFT from July 1,2014 to December 31,2015. The levels of IFN-T of different groups of patients were analyzed by Chi-square 2 test, P〈0.05 was considered as statistically significant. Results The sensitivity and specificity of QFT were 77.6% (716/923) and 69.9% (158/226) when compared with clinical diagnosis. Compared with sputum smear (the positive rate 28.5% (226/792) in pulmonary tuberculosis, 5.3% (7/131) in ex- tra-pulmonary tuberculosis and 6. 1% (6/98) in HIV or AIDS/TB) and liquid culture (the positive rate 40. 9% (324/792) in pulmonary tuberculosis, 13.0% (17/131) in extra-pulmonary tuberculosis and 11.2% (11/98) in HIV or AIDS/TB), IGRA showed higher positive rate (the positive rate 77.0% (610/792) in pulmonary tuberculosis, 80.9%(106/131) in extra-pulmonary tuberculosis and 50.0% (49/98) in HIV or AIDS/TB). The difference was significant statistically (e values 373.52,152.51 and 46.73 compared to sputum smear, X2 values 212.03, 121.38 and 34.68 compared to liquid culture, P〈0.01). Conclusion IGRA is a rapid and simple tool for diagnosis of tuberculosis with high sensitivity especially for smear and culture negative, extrmpulmonary and HIV/AIDS combined tuberculosis.
出处
《中国防痨杂志》
CAS
2016年第8期623-629,共7页
Chinese Journal of Antituberculosis
基金
重庆市卫生局2012年医学科研重点项目(2012-1-085)
关键词
结核
分枝杆菌
结核
酶联免疫斑点检测
分子诊断技术
评价研究
Tuberculosis
Mycobacterium tuberculosis
Enzyme-linked immunospot assay
Molecular diagnostic techniques
Evaluation studies