Table 1. Patient characteristics and clinicopathological features.
| Variables | No. of patients (n=401) | |
|---|---|---|
| Age (yr) | 70 (28–89) | |
| Sex ratio (male:female) | 275:126 | |
| cT category | ||
| cT1 | 139 | |
| cT2 | 150 | |
| cT3 | 77 | |
| cT4 | 35 | |
| cN category | ||
| cN0 | 308 | |
| cN+ | 93 | |
| Tumor location | ||
| Upper one-third of stomach | 74 | |
| Middle one-third of stomach | 180 | |
| Lower one-third of stomach | 143 | |
| Whole stomach | 4 | |
| Diameter (mm) | 30 (7–125) | |
| Macroscopic type | ||
| 0 | 177 | |
| 1 | 27 | |
| 2 | 117 | |
| 3 | 77 | |
| 4 | 1 | |
| 5 | 2 | |
| Surgical procedure | ||
| Total gastrectomy | 88 | |
| Proximal gastrectomy | 14 | |
| Pylorus-preserving gastrectomy | 7 | |
| Distal gastrectomy | 292 | |
| Lymphadenectomy | ||
| D2 | 216 | |
| Non-D2 | 185 | |
| Operative time (min) | 244 (113–817) | |
| Intraoperative blood loss (mL) | 170 (0–1,475) | |
| Postoperative complication | ||
| CD ≥2 | 85 | |
| CD ≥3 | 40 | |
| Histology | ||
| Differentiated type | 226 | |
| Undifferentiated type | 175 | |
| Lymphatic invasion | ||
| − | 122 | |
| + | 279 | |
| Venous invasion | ||
| − | 232 | |
| + | 169 | |
| Lymphovascular invasion | ||
| − | 101 | |
| + | 300 | |
| pT pN category | ||
| pT1 pN1 | 118 | |
| pT1 pN2 | 18 | |
| pT1 pN3 | 2 | |
| pT2 pN0 | 166 | |
| pT3 pN0 | 97 | |
Values represent the median (range) or number.
CD = Clavien-Dindo classification.