Table 2.
Concordance between the SARS-CoV-2 antigen and nucleic acid tests.
|
a | ||||
| 2019 Novel Coronavirus Detection Kit |
Total |
|||
| (+) |
(-) |
|||
| Lumipulse Presto SARS-CoV-2 Ag ((+)≥1.00 pg/mL) |
(+) |
56 |
16 |
72 |
| (-) |
18 |
10 |
28 |
|
| Total | 74 | 26 | 100 | |
| Sensitivity: 75.7% (95% confidence interval: 65.0%–86.5%) Concordance rate: 66.0% | ||||
|
b | ||||
| 2019 Novel Coronavirus Detection Kit |
Total |
|||
| (+) |
(-) |
|||
| Lumipulse Presto SARS-CoV-2 Ag ((+)≥1.00 pg/mL) |
(+) |
0 |
8 |
8 |
| (-) |
0 |
192 |
192 |
|
| Total | 0 | 200 | 200 | |
| Specificity: 96.0% (95% confidence interval: 93.0%–99.0%) Concordance rate: 96.0% Concordance in the positive group (n = 100) (a), and in the negative group (n=200) (b) | ||||