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Sensitivity of Abbott ID NOW using reverse transcription polymerase chain reaction (RT-PCR) as a reference standard, by cycle threshold (Ct) value
| Ct value | Positive on Abbott ID NOW/positive on RT-PCR | Sensitivity (%) |
|---|---|---|
| ≤25 (low) | 25/27 | 92.6 |
| 25–30 (medium–low) | 18/18 | 100 |
| 30–35 (medium–high) | 13/16 | 81.3 |
| ≥35 (high) | 5/14 | 35.7 |
