Table 3.
(A) Test performance characteristics of ID NOW™ COVID 19 nasal swab compared to the nasopharyngeal swab RT-PCR (B) test performance of residual nasal swab RT-PCR compared to nasopharyngeal swab RT-PCR.
| Nasopharyngeal LDT RT-PCR |
Nasopharyngeal LDT RT-PCR |
||||||
|---|---|---|---|---|---|---|---|
| Positive | Negative | Positive | Negative | ||||
| ID NOW: COVID 19 | Positive | 12 | 0 | Residual Nasal | Positive | 13 | 0 |
| Negative | 2 | 37 | LDT RT-PCR | Negative | 1 | 38 | |
| Sensitivity | 0.86 | Sensitivity | 0.93 | ||||
| Specificity | 1.00 | Specificity | 1.00 | ||||
| PPV | 1.00 | PPV | 1.00 | ||||
| NPV | 0.95 | NPV | 0.97 | ||||