TABLE 2.
Performance agreement for detection of SARS-CoV-2 RNA laboratory-modified CDC COV assay, ACOV assay, and IDNOW assaya
| Assay comparison (A vs B) | Positive percent agreement (95% CI) | Negative percent agreement (95% CI) |
|---|---|---|
| CDC COV+ vs ACOV+ | 100 (96.9–100) | |
| CDC COV+ vs IDNOW+ | 80.3 (71.9–87.1) | |
| ACOV+ vs IDNOW+ | 75.2 (66.7–82.5) | |
| CDC COV− vs ACOV− | 92.4 (84.2–97.2) | |
| CDC COV− vs IDNOW− | 100 (95.4–100) | |
| ACOV− vs IDNOW− | 100 (95.4–100) |
n = 200 samples. +, positive; −, negative.