全国沙眼衣原体检测实验室间质评效果评价

目的探讨2007-2009年全国各级性病检验实验室沙眼衣原体(Ct)抗原检测室间质量评价结果,以利提高性病临床实验室Ct检测水平.方法发放Ct质控标本2007年76份,2008年168份,2009年175份.要求各性病实验室在规定的时间内进行检测,并将检测结果回报中国疾病预防控制中心性病控制中心参比实验室.性病控制中心对各实验室的结果进行统计分析,最后将结果反馈至各实验室.结果参评实验室Ct检测合格率从2007年的84.93%提高到2009年的92.14%,优秀率从2007年47.95%提高到2009年的70%,不合格率则从2007年的5.48%下降到2009年的0.71%.检测结果还显示,省级中心实验室和自愿参加的各级性病实验室Ct检测能力普遍较高,少数国家级性病监测点实验室检验水平有待提高.结论室间质量评价表明,各级性病实验室的检测能力及考核成绩在不断提高.

Nationwide external quality assessment for detection of Chlamydia trachomatis

Objective To perform a nationwide external quality assessment for detection of Chlamydia trachomatis, and to improve the performance of laboratories in the detection of Chlamydia trachomatis. Methods Totally, 419 quality control samples were sent to tested laboratories, including 76 samples in 2007, 168 samples in 2008 and 175 samples in 2009. The laboratories were required to test the samples and report test results, within stipulated time, to the reference laboratory in National Center for Sexually Transmitted Disease (STD) Control, Chinese Center for Disease Control and Prevention. The reported results were statistically analyzed by the National Center for STD Control, who finally fed back the statistical results to all of the participants. Results The percentage increased from 84.93% in 2007 to 92.14% in 2009 for laboratories showing an 80% or more consistency with the reference laboratory in the detection of Chlamydia trachomatis from quality control samples (qualified), from 47.95% in 2007 to 70% in 2009 for those showing a 100% consistency (excellent), and dereased from 5.48% in 2007 to 0.71% in 2009 for those showing a consistency of lower than 60% (unqualified). The centralabs of provincial CDC and volunteer laboratories exhibited a satisfactory performance for the detection of Chlamydia trachomatis, while the performance of a small number of national STD surveillance sites needed to be increase. Conclusion The external quality assessment reveals a continuous improvement in the capability of detecting Chlamydia trachomatis in STD laboratories at different levels in China.