Table 4.
Performance of RDTs and microscopy compared to PCR results
| PCR | Sensitivity (95% CI) | Specificity (95% CI) | PPV (95% CI) | NPV (95% CI) | |||
|---|---|---|---|---|---|---|---|
| Positive | Negative | ||||||
| RDTs | |||||||
| Positive | 230 | 73 | 303 | 75.5% (70.4, 80.4) | 94.2% (92.8, 95.4) | 75.9% (70.7, 80.6) | 94.1% (92.1,95.4) |
| Negative | 74 | 1190 | 1264 | ||||
| Total | 304 | 1263 | 1567 | ||||
| PCR | Sensitivity (95% CI) | Specificity (95% CI) | PPV (95% CI) | NPV (95% CI) | |||
|---|---|---|---|---|---|---|---|
| Positive | Negative | ||||||
| Microscopy | |||||||
| Positive | 173 | 29 | 202 | 56.9% (51.1, 62.5) | 97.7% (96.7, 98.5) | 85.6% (80.0, 90.2) | 90.4% (88.7, 91.9) |
| Negative | 131 | 1234 | 1365 | ||||
| Total | 304 | 1264 | 1567 | ||||
PPN: positive predictive value; NPV: negative predictive value