Table 2.
Univariate analysis of prognostic factors in middle third gastric carcinoma patients
| Variables | No. of patients | 5-yr survival rate | P value |
| Age | 0.0057 | ||
| < 65 | 688 | 56.0 | |
| ≥ 65 | 231 | 40.0 | |
| Gender | 0.0161 | ||
| Male | 602 | 48.9 | |
| Female | 317 | 59.9 | |
| Tumor size (cm) | < 0.001 | ||
| < 5 | 616 | 68.5 | |
| ≥ 5 | 303 | 28.0 | |
| Depth of invasion | < 0.001 | ||
| T1 | 296 | 88.3 | |
| T2 | 112 | 75.9 | |
| T3 | 410 | 37.8 | |
| T4 | 101 | 15.4 | |
| Histologic type | 0.0294 | ||
| Differentiated | 324 | 62.8 | |
| Undifferentiated | 595 | 48.2 | |
| Hepatic metastasis | < 0.001 | ||
| (-) | 899 | 53.7 | |
| (+) | 20 | 10.8 | |
| Operative type | 0.4327 | ||
| Total | 297 | 52.4 | |
| Others | 622 | 63.6 | |
| Lymph node invasion | < 0.001 | ||
| N (-) | 561 | 77.5 | |
| N (+) | 358 | 32.7 | |
| Lymph node dissection | < 0.001 | ||
| < D2 | 215 | 18.3 | |
| ≥ D2 | 704 | 60.0 | |
| Stage | < 0.001 | ||
| I | 356 | 87.5 | |
| II | 167 | 62.5 | |
| III | 223 | 35.2 | |
| IV | 173 | 14.7 |