Table 2.
Sensitivity and specificity of the four dogs trained to detect COVID-19 from the sweat of positive and negative people compared with the reference tests (Antigen test and RT-PCR).
| Name | n | Sensitivity (%) | 95% CI | Specificity (%) | 95% CI |
PPV (%) |
95% CI |
NPV (%) |
95% CI |
|---|---|---|---|---|---|---|---|---|---|
| Sam | 132 | 58 | 45–71 | 69 | 57–80 | 61 | 48–74 | 67 | 55–77 |
| Leia | 132 | 60 | 47–72 | 64 | 52–76 | 62 | 49–74 | 62 | 50–74 |
| Mike | 124 | 76 | 63–86 | 75 | 63–85 | 74 | 61–84 | 78 | 66–87 |
| Harry | 95 | 80 | 66–91 | 88 | 75–95 | 86 | 72–95 | 83 | 70–92 |
CI, confidence interval; n, number of trials; NPV, negative predictive value; PPV, positive predictive value; RT-PCR, reverse transcription polymerase chain reaction.