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Table 6 Diagnostic 2 × 2 table. Sensitivity, specificity, NPV and PPV of the Mo-STNPCR method were determined by comparing to combined LM and IVC results

From: A highly sensitive modified nested PCR to enhance case detection in leishmaniasis

  Combined laboratory results (LM and IVC)   
Positive Negative Total count
Mo-STNPCR method Positive 35 5 40 PPV = (35/40) × 100% = 87.5%
Negative 0 30 30 NPV = (30/30) × 100% = 100.0%
Total Count 35 35 70  
  Sensitivity = (35/35) × 100% = 100.0% Specificity = (30/35) × 100% = 85.7%