Table 3.
Performance characteristics of pooled analysis when major discordances were analysed
| Major discordance | Individual test (reference) |
|
|---|---|---|
| No. positive | No. negative | |
| Pool test | ||
| Positive | 234 | 0 |
| Negative |
7 |
3268 |
| Statistic |
Value |
95% CI |
| Sensitivity (%) | 97.10 | 94.11 to 98.82 |
| Specificity (%) | 100.00 | 99.89 to 100.00 |
| PPV (%) | 100.00 | |
| NPV (%) | 99.79 | 99.56 to 99.90 |
| Accuracy (%) | 99.80 | 99.59 to 99.92 |
| Kappa (κ) | 0.984 | |
CI, confidence interval; NPV, negative predictive value; PPV, positive predictive value.