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Table 5 Diagnostic 2 × 2 table. Sensitivity, specificity, NPV and PPV of the Mo-STNPCR method were determined by comparing to LM

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

  LM   
Positive Negative Total count
Mo-STNPCR method Positive 30 10 40 PPV = (30/40) × 100% = 75.0%
Negative 0 30 30 NPV = (30/30) × 100% = 100.0%
Total Count 30 40 70  
  Sensitivity = (30/30) × 100% = 100.0% Specificity = (30/40) × 100% = 75.0%