Table 4. Analysis of three diagnostic assays for cutaneous leishmaniasis using PCR as the gold standard.
Diagnostic test | True positives | False positives | True negativesa | False negatives | Sensitivity | Specificity | PPV | NPV |
---|---|---|---|---|---|---|---|---|
SSS | 43 | 00 | 22 | 16 | 73% | 100% | 100% | 58% |
IC-RDT | 21 | 00 | 22 | 38 | 36% | 100% | 100% | 37% |
PCR positives were taken as total true positives (n = 59).
a = true negatives from clinically non-CL discarded skin lesions collected from a casualty theatre in a non-endemic area for CL.
NPV = negative predictive value,
PPV = positive predictive value.