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.