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Table 4 The overall performance of three dogs in the sector 2of the study

From: Sniffer dogs as a screening/diagnostic tool for COVID-19: a proof of concept study

 

Condition Positive

Condition Negative

          

True positive

False negative

False positive

True negative

Predicted positive condition

Positive condition

Predicted negative condition

Negative condition

Sensitivity or true positive rate (TPR) %

False negative rate (FNR) %

False positive rate (FPR)

Specificity or true negative rate (TNR)

Positive likelihood ratio

Negative likelihood ratio

Face Masks and clothes

43

7

5

65

48

50

72

70

86.0%

14.0%

7.1%

92.9%

12.04

0.15077