Table 4 Diagnostic 2 × 2 table. Sensitivity, specificity, negative predictive value (NPV) and positive predictive value (PPV) of the Mo-STNPCR method were determined by comparing to conventional parasitological methods, LM, IVC and CPCR
From: A highly sensitive modified nested PCR to enhance case detection in leishmaniasis
| Â | Combined laboratory results (LM, IVC and CPCR) | Â | Â | ||
|---|---|---|---|---|---|
Positive | Negative | Total count | |||
Mo-STNPCR method | Positive | 40 | 0 | 40 | PPV = (40/40) × 100% = 100.0% |
Negative | 0 | 30 | 30 | NPV = (30/30) × 100% = 100.0% | |
Total Count | 40 | 30 | 70 | Â | |
|  | Sensitivity = (40/40) × 100% = 100.0% | Specificity = (30/30) × 100% = 100.0% |  |  | |