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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