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Table 2 Prediction results for the 109 strains in the eleventh “test dataset” using four French markers

From: Prediction of the origin of French Legionella pneumophila strains using a mixed-genome microarray

Test dataset Origin of strains Total
  Clinical Environmental  
Prediction clinical 55 32 87
Prediction environmental 2 20 22
Total 57 52 109
Sensitivity 96%   
Specificity 38%   
PPV 63%   
NPV 91%   
  1. Abbreviation: PPV, positive predictive value ; NPV, negative predictive value.