Table 2. Results of Panbio COVID-19 Ag Rapid Test Device and real-time RT-PCR by Ct range
Ct
Positive results (n)
Sensitivity (95% CI)
Real-time RT-PCR
Panbio COVID-19
≤25
15
15
100.0% (78.0−100.0)
>25
15
0
0.0% (0.0−22.0)
≤26.67
*
17
15
88.2% (63.5−98.2)
>26.67
13
0
0.0% (0.0−24.9)
Ct, cycle threshold.
Cutoff Ct provided by the manufacturer.