Table 2.
Pathological characteristics of the patients
| pathological characteristics | Total | Training data (70%) | Test data (30%) |
|---|---|---|---|
| n percentile (%) | n percentile (%) | n percentile (%) | |
| Gender | |||
| Male | 94 (61.8) | 63 (59.4) | 31 (67.4) |
| Female | 58 (38.2) | 43 (40.6) | 15 (32.6) |
| Age (years) | |||
| Mean | 58.9 ± 8.3 | 52.3 ± 10. | 58.9 ± 8.0 |
| Range | 24–78 | 24–77 | 25–78 |
| Histological type | |||
| Adenocarcinoma | 131 (86.2) | 91 (85.8) | 40 (87.0) |
| Mucinous adenocarcinoma | 15 (9.9) | 11 (10.4) | 4 (8.7) |
| Signet ring cell carcinoma | 6 (3.9) | 4 (3.8) | 2 (4.3) |
| Pathologic differentiation | |||
| High | 20 (13.2) | 14 (13.2) | 6 (13.0) |
| Moderate | 112 (73.7) | 78 (73.6) | 34 (73.9) |
| Poor | 20 (13.2) | 14 (13.2) | 6 (13.0) |
| T stage | |||
| T1 | 22 (14.5) | 15 (14.2) | 7 (15.2) |
| T2 | 44 (28.9) | 28 (26.4) | 16 (34.8) |
| T3 | 74 (48.7) | 53 (50.0) | 21 (45.7) |
| T4 | 12 (7.9) | 10 (9.4) | 2 (4.3) |
| N stage | |||
| N0 | 94 (61.9) | 67 (63.2) | 27 (58.7) |
| T1 | 37 (24.3) | 27 (25.5) | 10 (21.7) |
| T2 | 21 (13.8) | 12 (11.3) | 9 (19.6) |