Diagnostic performance of ‘non-reproducible CWT’ and ‘troponin’ for the diagnosis of acute coronary syndrome
| Non-reproducible CWT | Serial troponin | |||||
|---|---|---|---|---|---|---|
| 95% CI | p Value | 95% CI | p Value | |||
| Sensitivity | 92.9% | 66.1% to 98.8% | 0.003 | 85.7% | 57.2 to 97.8% | 0.000 |
| Specificity | 48.6% | 38.8% to 58.5% | 86.9% | 79.0% to 92.65% | ||
| PPV | 19.1% | 10.6% to 30.5% | 46.2% | 26.61% to 66.1% | ||
| NPV | 98.1% | 89.9% to 99.7% | 97.9% | 92.6% to 99.7% | ||
| Positive LR | 1.8 | 1.4 to 2.3 | 6.6 | 3.8 to 11.2 | ||
| Negative LR | 0.15 | 0.02 to 2.3 | 0.16 | 0.05 to 0.6 | ||
| OR | 1.6 to 97.3 | 0.017 | 39.9 | 8.1 to 197.2 | 0.000 | |
CWT, chest wall tenderness; LR, likelihood ratio; NPV, negative predictive value; PPV, positive predictive value.