Table 1.
Patient characteristics for the training cohort and verification cohort 2 in the study.
| Variables | Value |
|---|---|
| Patient age (range, years) | 60.1 ± 12.5 |
| Gender, n (%) | |
| Male | 21 (61.8) |
| Female | 13 (38.2) |
| Tumor location, n (%) | |
| Colon | 18 (52.9) |
| Rectum | 16 (47.1) |
| Histological grade, n (%) | |
| Good differentiation | 1 (3.0) |
| Moderate differentiation | 25 (73.5) |
| Poor differentiation | 8 (23.5) |
| T stage of primary disease, n (%) | |
| 1 | 0 (0) |
| 2 | 2 (5.9) |
| 3 | 18 (52.9) |
| 4 | 14 (41.2) |
| N stage of primary disease, n (%) | |
| N0 | 12 (35.3) |
| N1 | 6 (17.6) |
| N2 | 16 (47.1) |
| Number of pulmonary nodules, n (%) | |
| Solitary | 11 (32.4) |
| Multiple | 23 (67.6) |
The numbers in parentheses represent the percentage of patients in this category.