Table 1.
Clinical characteristics of the patients
| Characteristics | Validation |
|---|---|
| Total number | 41 |
| Gender (male/female) | 31/10 |
| Age (years, mean) | 65.1 ± 11.2 |
| Primary GC (yes/no) | 41/0 |
| Adenocarcinoma (yes/no) | |
| – Tumor size T ≤ 2 cm | 41/0 |
| – T > 2 cm | 0/41 |
| Number of lymph nodes | |
| −0 | 21 |
| −1-2 | 6 |
| −3-6 | 6 |
| -≥7 | 8 |
| TNM stage | |
| – I | 17 |
| – II | 14 |
| – III | 9 |
| – IV | 1 |
| Histologic differentiation | |
| Well differentiated | 6 |
| Moderately differentiated | 17 |
| Poorly differentiated | 18 |
| Vascular invasion (yes/no) | 20/21 |
GC: Gastric cancer; TNM: Tumor, node (regional lymph node), metastasis