Table 3.
Sensitivity and specificity of the three dogs trained to detect COVID-19 from the saliva 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 |
|---|---|---|---|---|---|---|---|---|---|
| Spaidy | 138 | 70 | 56–82 | 69 | 58–78 | 58 | 45–70 | 79 | 68–87 |
| Krilling | 138 | 78 | 65–89 | 69 | 58–78 | 59 | 46–71 | 85 | 75–92 |
| Leia | 32 | 73 | 45–92 | 53 | 28–77 | 58 | 33–80 | 69 | 39–91 |
CI, confidence interval; n, number of trials; NPV, negative predictive value; PPV, positive predictive value; RT-PCR, reverse transcription polymerase chain reaction.