Accuracy of the BD Directigen Flu A+B test and the BD Directigen EZ Flu A+B test during different influenza seasons calculated using the RT-PCR (A+B) assay as a gold standard.

Key: CI—confidence intervalPPV—positive predictive valueNPV—negative predictive valueAccuracy of the BD Directigen Flu A+B test and the BD Directigen EZ Flu A+B test during different influenza seasons calculated using the RT-PCR (A+B) assay as a gold standard.

术语说明：CI——置信区间（confidence interval），PPV——阳性预测值（positive predictive value），NPV——阴性预测值（negative predictive value）。本数据集以逆转录聚合酶链反应（Reverse Transcription Polymerase Chain Reaction，RT-PCR）（A+B）检测法作为金标准，测算不同流感季中BD Directigen Flu A+B检测试剂盒与BD Directigen EZ Flu A+B检测试剂盒的检测准确度。