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目的了解梅毒胶体金法在自愿咨询检测(VCT)门诊、社区卫生服务中心和非政府组织(NGO)工作室等临床诊断中的应用价值。方法应用梅毒螺旋体(TP)抗体检测试剂(胶体金法)、酶联免疫吸附试验(ELISA)、梅毒螺旋体明胶颗粒凝集试验(TPPA),同时对2011-2013年医院哨点监测性病门诊送检的血清标本进行检测。结果对1204例样本进行检测,梅毒胶体金法阳性检出率为20.51%(247/1204),ELISA法为21.01%(253/1204),TPPA法为20.02%(241/1204)。以TPPA为金标准,梅毒胶体金、ELISA的敏感性均为99.59%,特异性分别为99.27%、98.65%。胶体金法与TPPA法和ELISA法经Kappa一致性检验比较(u分别为135.20、137.71,k=0.98,P<0.05),具有极强的一致性。结论梅毒胶体金检测敏感性高、特异性强,具有简便、迅速的特点,值得在临床诊断中推广应用。
Objective To understand the value of syphilis colloidal gold assay in the clinical diagnosis of voluntary counseling and testing (VCT) clinics, community health service centers and non-governmental organization (NGO) studios. Methods Treponema pallidum (TP) antibody test, ELISA and TPPA were used in this study. The clinical data of sentinel surveillance STD clinics in 2011-2013 were also analyzed. Serum samples were tested. Results A total of 1204 samples were detected. The positive rate of syphilis gel method was 20.51% (247/1204). The ELISA method was 21.01% (253/1204). The TPPA method was 20.02% (241/1204). Taking TPPA as gold standard, the sensitivity of syphilis colloidal gold and ELISA were 99.59% and 99.27% and 98.65% respectively. Colloidal gold method and TPPA method and ELISA method by Kappa consistency test (u respectively 135.20,137.71, k = 0.98, P <0.05), with very strong consistency. Conclusion The detection of syphilis colloidal gold has high sensitivity and specificity and is simple and rapid. It is worth to be popularized in clinical diagnosis.