Table 2.
Clinicopathological features in each subgroup categorized based on copy number alterations
| Characteristics | Subgroup 1 | Subgroup 2 | Subgroup 3 | P‐value |
|---|---|---|---|---|
| Total | 59 (%) | 17 (%) | 30 (%) | |
| Gender | ||||
| Male | 25 (42.4) | 7 (41.2) | 20 (66.7) | NS |
| Female | 34 (57.6) | 10 (58.8) | 10 (33.3) | |
| Age | ||||
| Median (range) | 73 (39‐90) | 70 (40‐88) | 72 (47‐87) | NS |
| Location | ||||
| Right sided | 26 (44.1) | 9 (52.9) | 4 (13.3) | <0.01 |
| Left sided | 33 (55.9) | 8 (47.1) | 26 (86.7) | |
| Differentiation | ||||
| WDA | 5 (8.5) | 1 (5.9) | 0 (0) | NS |
| MDA | 48 (81.4) | 15 (88.2) | 29 (96.7) | |
| Other | 3 (5.1) | 1 (5.9) | 1 (3.3) | |
| Lymphatic invasion | ||||
| Negative or low | 56 (94.9) | 15 (88.2) | 27 (90.0) | NS |
| High | 3 (5.1) | 2 (11.8) | 3 (10.0) | |
| Venous invasion | ||||
| Negative or low | 54 (91.5) | 12 (70.6) | 27 (90.0) | NS |
| High | 5 (8.5) | 5 (29.4) | 3 (10.0) | |
| TNM stage | ||||
| I | 12 (20.3) | 4 (23.5) | 2 (6.7) | NS |
| II | 19 (32.2) | 3 (17.7) | 9 (30.0) | |
| III | 23 (39.0) | 6 (35.3) | 13 (43.3) | |
| IV | 5 (8.5) | 4 (23.5) | 6 (20.0) | |