Table 2.
Results of 947 samples detected by RT-RAA and qRT-PCR
| RT- RAA | qRT-PCR result |
Total | Sensitivity (%) (95% CI) | Specificity (%) (95% CI) | PPV (%) | NPV (%) | Kappa | |
|---|---|---|---|---|---|---|---|---|
| + | — | |||||||
| + | 330 | 13 | 343 | 97.63 (95.21–98.90) | 97.87 (96.28–98.81) | 96.21 | 98.68 | 0.952 |
| — | 8 | 596 | 604 | |||||
| Total | 338 | 609 | 947 | |||||
CI, confidence interval; NPV, negative predictive value; PPV, positive predictive value; qRT-PCR, quantitative real-time PCR; RT-RAA, reverse transcription recombinase–aided amplification.