| CAS finding | No risk factors (n = 27,614) | 1 risk factor (n = 55,673) | ≥2 risk factors (n = 154,006) |
| Normal | 18,105 (65.6%) | 32,054 (57.6%) | 64,692 (42.0%) |
| Mild/Moderate | 8869 (32.1%) | 21,893 (39.3%) | 79,332 (51.5%) |
| Moderate | 441 (1.6%) | 1148 (2.1%) | 6057 (3.9%) |
| Significant | 199 (0.7%) | 576 (1.0%) | 3890 (2.5%) |