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Predictive ability of AAC grades for SS.
| Predictor (AAC grades) | Outcome (SS) | Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) | Accuracy (%) |
|---|---|---|---|---|---|---|
| Grade =0 | ≤22 | 46.7 | 95.9 | 94.1 | 56.4 | 67.3 |
| Grade ≥2 | >22 | 66.3 | 89.2 | 81.5 | 78.6 | 79.6 |
| Grade =3 | >22 | 13.5 | 98.4 | 86.0 | 61.3 | 62.9 |
| Grade =3 | ≥33 | 24.0 | 97.1 | 63.4 | 85.8 | 84.3 |
AAC: aortic arch calcification; SS: SYNTAX score; PPV: positive predictive value; NPV: negative predictive value.
