Table 2 Sensitivity, specificity, positive predictive value and negative predictive value of the RT-PCR performed on simulated samples
Species test | P. falciparum | P. vivax | ||
|---|---|---|---|---|
Positive | Negative | Positive | Negative | |
Species-specific RT-PCR | ||||
Positive | 522 | 0 | 154 | 0 |
Negative | 2 | 451 | 2 | 876 |
McNemar’s (two-tailed) test | P = 0.4795 | |||
|---|---|---|---|---|
Percentage | 95 % CI | Percentage | 95 % CI | |
Sensitivity | 100 | 99.30–100 | 100 | 97.66–100 |
Specificity | 99.56 | 98.41–99.95 | 99.77 | 99.18–99.97 |
PPV | 99.62 | 98.63–99.95 | 98.73 | 95.50–99.85 |
NPV | 100 | 99.19–100 | 100 | 99.58–100 |