Table 2.
Pathologic characteristics of operated gastric tumors.
| Parameter | <50 years (20) |
≥50 years (112) |
P |
|---|---|---|---|
| Mean tumor diameter (cm) ± SD | 4.7 ± 2.6 | 4.3 ± 2.3 | 0.461 |
| Median | 4 | 4 | |
| Tumor site | |||
| Upper third | 4 (20.0%) | 23 (20.5%) | 0.806 |
| Middle third | 4 (20.0%) | 27 (24.1%) | |
| Lower third | 12 (60.0%) | 60 (53.6%) | |
| Whole stomach | 0 (0%) | 2 (1.8%) | |
| Depth of cancer invasion | |||
| Early | 4 (20.0%) | 15 (13.4%) | 0.667 |
| Advanced | 16 (80.0%) | 97 (86.6%) | |
| Histological type (Lauren's criteria) | |||
| Intestinal | 6 (30.0%) | 65 (58.0%) | 0.038 |
| Diffuse | 14 (70.0%) | 47 (42.0%) | |
| Lymph node metastasis | |||
| Positive | 13 (65.0%) | 63 (56.2%) | 0.629 |
| Negative | 7 (35.0%) | 49 (43.8%) | |
| Stage TNM 6th edition | |||
| I | 7 (35.0%) | 38 (34.9%) | 0.871 |
| II | 2 (10.0%) | 31 (27.7%) | |
| III | 6 (30.0%) | 31 (27.7%) | |
| IV | 5 (25.0%) | 12 (10.7%) |
SD: standard deviation; TNM: tumor node metastasis; P values are bilateral.