Saskatchewan Disease Control Laboratory, Regina, Saskatchewan, Canada.
Sex Transm Dis. 2012 Jul;39(7):514-7. doi: 10.1097/OLQ.0b013e31824f2f5b.
Performances of the BD ProbeTec Chlamydia trachomatis (CT)/Neisseria Gonorrhoeae (GC) Q(x) Amplified DNA Assay reagents on a BD Viper System with XTR Technology and APTIMA COMBO 2 Assay reagents on a TIGRIS DTS platform, for detection of both CT and GC were compared.
A total of 1018 first-void urine specimens were tested for the presence of CT and GC DNA using the 2 assays.
CT was detected in 143 specimens (14%). Eight specimens exhibited discordant results, and they were divided equally between the 2 assays. Based on the original results, the overall agreement for CT was 99.2%, with 97.1% and 99.5% in agreement with positive and negative specimens, respectively. Cohen's Kappa was 0.967. GC was detected in 27 specimens (2.6%). Two specimens exhibited discordant results, and they were divided equally between the 2 assays. Based on the original results, the overall agreement was 99.8%, with 96.2% and 99.9% in agreement for positive and negative specimens, respectively. Cohen's Kappa was 0.961.
There was a high level of agreement between the systems for both CT and GC detection.
比较了 BD ProbeTec 沙眼衣原体(CT)/淋病奈瑟菌(GC)Q(x)扩增 DNA 检测试剂在具有 XTR 技术的 BD Viper 系统和 APTIMA COMBO 2 检测试剂在 TIGRIS DTS 平台上的性能,用于检测 CT 和 GC。
使用这两种检测方法共检测了 1018 例首次尿液标本中 CT 和 GC DNA 的存在情况。
143 例标本(14%)中检测到 CT。8 例标本的结果不一致,两种检测方法各有 4 例。基于原始结果,CT 的总体一致性为 99.2%,阳性和阴性标本的一致性分别为 97.1%和 99.5%。Cohen's Kappa 为 0.967。27 例标本(2.6%)中检测到 GC。两种检测方法各有 1 例标本结果不一致。基于原始结果,总体一致性为 99.8%,阳性和阴性标本的一致性分别为 96.2%和 99.9%。Cohen's Kappa 为 0.961。
两种系统在检测 CT 和 GC 方面具有高度的一致性。