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 |