Diagnostic performance of COVID-19 immunochromatographic rapid test (ICT) kits.
Table 2 presents the sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and overall accuracy of the three different ICT kits.
The sensitivity of DG Rapid and SD Rapid was relatively high, with values of 78.9% and 73.7%, respectively, while the sensitivity of SS Rapid was lower at 50.0%. All three kits demonstrated 100.0% specificity and 100% PPV. The NPVs of DG Rapid, SD Rapid, and SS Rapid were 82.2%, 78.7%, and 66.1%, respectively.
The overall accuracy was highest for DG Rapid at 89.3%, followed by SD Rapid at 86.7%, and SS Rapid at 74.7%. These results suggest that DG Rapid and SD Rapid may be more effective than SS Rapid for detecting SARS-CoV-2 RNA.