Table 3.
Sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and accuracy of calcium scoring in assessing coronary artery disease under patient-based (PB) and vessel-based (VB) analyses.
| Calcium scoring | 0 | 1–10 | 11–100 | 101–400 | 401–1000 | ≧1001 | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PB | VB | PB | VB | PB | VB | PB | VB | PB | VB | PB | VB | |
| Sensitivity | 100% | 100% | Nil | 91.6% | 95.8% | 86.3% | 81.7% | 61.1% | 56.3% | 33.6% | 39.4% | 11.5% |
| Specificity | 0% | 0% | Nil | 46.1% | 41.4% | 53.2% | 62.1% | 77.3% | 86.2% | 91.8% | 100% | 98.9% |
| PPV | 32.8% | 71% | Nil | 45.3% | 80% | 47.3% | 84.1% | 56.7% | 90.9% | 66.7% | 100% | 83.3% |
| NPV | Nil | Nil | Nil | 91.9% | 80% | 88.8% | 58.1% | 80.3% | 44.6% | 74% | 40.3% | 69.6% |
| Accuracy | 32.8% | 71% | Nil | 61% | 80% | 64% | 76% | 72% | 65% | 72.8% | 57% | 70.3% |
Nil: no patients in respective group.