Table 3.
Sensitivity and specificity compared with real-time PCR.
| SAI system | control reagent | LAMP | Total | |||||
|---|---|---|---|---|---|---|---|---|
| positive | negative | positive | negative | positive | negative | |||
| real-time PCR | positive | 66 | 7 | 47 | 26 | 70 | 3 | 73 |
| negative | 0 | 84 | 8 | 76 | 1 | 83 | 84 | |
| Total | 66 | 91 | 55 | 102 | 71 | 86 | 157 | |
| Sensitivity | 90.4% | 64.4% | 95.9% | |||||
| 95%CI | 81.2–96.1% | 52.3–75.3% | 88.5–99.1% | |||||
| Specificity | 100.0% | 90.5% | 98.8% | |||||
| 95%CI | 95.7–100% | 82.1–95.8% | 93.5–99.97% | |||||
SAI: silver amplification immunochromatography, LAMP: loop-mediated isothermal amplification, 95%CI: 95% confidence interval.