Table 3.
Univariate survival analyses
| Variable | Overall 5-YSR (%) | p-value | Disease-specific 5-YSR (%) | p-value |
|---|---|---|---|---|
| Gender | 0.352 | 0.192 | ||
| Female (n=88) | 27.6 | 31.4 | ||
| Male (n=157) | 34.7 | 38.2 | ||
| Size of tumor | 0.085 | 0.309 | ||
| < 70 mm (n=138) | 36.0 | 38.7 | ||
| ≥ 70 mm (n=107) | 27.6 | 32.2 | ||
| Tumor location | 0.087 | 0.036 | ||
| Upper third (n=50) | 27.4 | 28.3 | ||
| Middle third (n=94) | 31.3 | 32.2 | ||
| Lower third (n=101) | 36.9 | 43.3 | ||
| Pathological depth of invasion | 0.915 | 0.669 | ||
| pT2 (n=2) | 0 | 0 | ||
| pT3 (n=50) | 27.0 | 28.5 | ||
| pT4a (n=184) | 33.6 | 37.6 | ||
| pT4b (n=9) | 33.3 | 42.9 | ||
| Pathological lymph node metastasis | < 0.001 | < 0.001 | ||
| N0 (n=36) | 45.3 | 49.9 | ||
| N1 (n=24) | 50.0 | 56.7 | ||
| N2 (n=56) | 41.1 | 45.4 | ||
| N3 (n=129) | 21.3 | 23.7 | ||
| Differentiation | 0.003 | 0.002 | ||
| Differentiated (n=82) | 41.6 | 45.8 | ||
| Undifferentiated (n=163) | 27.5 | 30.8 | ||
| Extent of gastric resection | 0.013 | 0.009 | ||
| Subtotal (n=134) | 37.7 | 41.9 | ||
| Total (n=111) | 26.1 | 29.0 | ||
| Adjuvant chemotherapy | 0.840 | 0.485 | ||
| Yes (n=186) | 31.3 | 34.8 | ||
| No (n=59) | 35.2 | 39.5 | ||
| EPIC | 0.012 | 0.011 | ||
| Yes (n=65) | 47.4 | 53.1 | ||
| No (n=180) | 26.7 | 29.7 |
The numbers in parentheses are the number of patients. 5-YSR, 5-year survival rate; EPIC, early postoperative intraperitoneal chemotherapy.