Table 3.
Agreement between Ag-RDTs.
| Agreement with RT-PCR | Agreement (%) | Kappa |
|---|---|---|
| Overall samples | ||
| CerTest | 76.4 | 0.531 |
| Panbio | 79.6 | 0.596 |
| High viral load samples (Ct25) | ||
| CerTest | 98.0 | 0.954 |
| Panbio | 98.8 | 0.973 |
| Agreement between Ag-RDTs | Agreement (%) | Kappa |
|---|---|---|
| Overall samples | ||
| CerTest vs Panbio | 96.7 | 0.920 |
| High viral load samples (Ct25) | ||
| CerTest vs Panbio | 99.2 | 0.982 |
Statistics: values are expressed as percentage. Kappa scores over 0.81 (almost perfect agreement) are shown in bold. Abbreviations: Ag-RDT: antigen rapid diagnostic test; Ct: cycle threshold.