TABLE 3.
Utility of POC NT‐proBNP ELISA test to detect echocardiographic abnormalities of cats from different auscultation result groups, at both general practices and the RVH
| Abnormal auscultation at GP | Normal auscultation at GP | Abnormal auscultation at RVH | Normal auscultation at RVH | All cats | |
|---|---|---|---|---|---|
| Number of cats | 27 | 190 | 50 | 167 | 217 |
| Abnormal echocardiogram prevalence | 52% | 18% | 48% | 15% | 23% |
| Sensitivity | 71% | 31% | 58% | 28% | 43% |
| Specificity | 92% | 97% | 85% | 99% | 96% |
| AUC | 0.82 | 0.64 | 0.72 | 0.63 | 0.7 |
| Positive likelihood ratio | 9.29 | 9.74 | 3.79 | 19.88 | 12 |
| Negative likelihood ratio | 0.31 | 0.71 | 0.49 | 0.73 | 0.59 |
| Positive predictive value | 91% | 69% | 78% | 78% | 78% |
| Negative predictive value | 75% | 87% | 69% | 89% | 85% |
| Accuracy | 81% | 85% | 72% | 88% | 84% |
Abbreviations: AUC, area under the receiver operating characteristic curve; GP, general practice; RVH, referral veterinary hospital.