Table 2.
Diagnostic performance of the evaluated Ag‐RDTs according to time form the onset of symptoms
| Time from the onset of symptoms | Days | Panbio | SD‐Biosensor | p value | ||
|---|---|---|---|---|---|---|
| 7 days | 4 (2 – 6) | Positive samples | 64/73 | Positive samples | 66/73 | 0.625 |
| Sensitivity | 87.7 | Sensitivity | 90.4 | |||
| (n = 73) | ||||||
| (81.2 – 96.1) | ||||||
| (77.9– 94.2) | ||||||
| 8–14 days | 9 (8 – 11) | Positive samples | 13/42 | Positive samples | 16/42 | 0.250 |
| Sensitivity | 31.0 | Sensitivity | 38.1 | |||
| (n = 42) | (17.6– 47.1) | |||||
| (23.6 – 54.4) | ||||||
| >14 days | 16 (15 – 18) | Positive samples | 4/13 | Positive samples | 5/13 | 1.000 |
| Sensitivity | 30.8 | Sensitivity | 38.5 | |||
| (n = 13) | ||||||
| (13.9 – 68.4) | ||||||
| (9.1 – 61.4) | ||||||
Note: Statistics: sensitivity results are expressed as percentage with 95% CI. P‐values were calculated by the McNemar's test. No p‐value was statistically significant (p < 0.05).
Abbreviations: Ag‐RDT, antigen rapid diagnostic test; 95% CI, 95% confidence interval; p‐value, level of significance.