Test kits (N=75)
rRT-PCR Ct values Sensitivity (%) Sensitivity (%) Specificity (%) Specificity (%) PPV (%) NPV (%)
Overall Accuracy (%)
Cohen’s kappa coefficient (%)
DG Rapid (n=24)
19.00 - 29.99
91.7
100
100
100
100
94.9
96.7
93.0
DG Rapid (n=7)
30.00 - 34.99
85.7
100
100
100
100
97.4
97.7
91.0
DG Rapid (n=7)
>35.00
28.6
100
100
100
100
88.1
88.6
40.2
SD Rapid (n=24) 19.00 - 29.99 88.9 100 100 100 100 92.5 95.3 90.2
SD Rapid (n=7)
30.00 - 34.99
71.4
100
100
100
100
94.9
95.5
80.8
SD Rapid (n=7)
>35.00
28.6
100
100
100
100
88.1
88.6
40.2
SS Rapid (n=24)
19.00 - 29.99
58.3
100
100
100
100
78.7
83.6
62.9
SS Rapid (n=7)
30.00 - 34.99
57.1
100
100
100
100
92.5
93.2
69.2
SS Rapid (n=7)
>35.00
14.3
100
100
100
100
86.0
86.4
21.9