Prevalence of non-nodule findings at baseline CT
| Incidental finding | Prevalence of findings (N, %) |
| COPD/emphysema | 498 (38.6) |
| Emphysema severity | |
| Mild | 321 (24.9) |
| Moderate | 83 (6.4) |
| Severe | 30 (2.3) |
| Not classified | 856 (66.4) |
| Interstitial lung disease | 331 (25.7) |
| Pleural disease | 263 (20.4) |
| Cardiovascular disease | 936 (72.6) |
| Cardiac calcification severity | |
| Mild | 561 (43.5) |
| Moderate | 214 (16.6) |
| Severe | 107 (8.3) |
| Not classified | 408 (31.6) |
| Thyroid abnormality | 28 (2.7) |
| Neck and mediastinal abnormalities | 531 (41.2) |
| Breast abnormalities | 17 (1.3) |
| Abdominal abnormalities | 257 (19.9) |
| Adrenal abnormalities | 38 (3.0) |
| Kidney abnormalities | 107 (8.3) |
| Bone abnormalities | 221 (17.1) |
| Other cancers | 2 (0.2) |
| Other abnormalities | 270 (20.9) |