Table 3.
Univariate analysis of prognostic factors for 200 intraperitoneally-disseminated gastric cancer patients
| n | 1-yr survival, % | Median survival in mo | P value | |
| Gender | ||||
| Male | 121 | 18.4 | 5.2 | 0.4 |
| Female | 79 | 18.5 | 6.5 | |
| Age | ||||
| < 60 | 100 | 21.1 | 6.5 | 0.26 |
| 60+ | 100 | 15.4 | 5.0 | |
| Borrmann’s type | ||||
| I-II | 22 | 34.3 | 6.8 | 0.13 |
| III-IV | 178 | 16.5 | 5.2 | |
| Ascites | ||||
| Absence | 113 | 29.5 | 6.9 | < 0.0001 |
| Presence | 87 | 1.7 | 4.0 | |
| Histology | ||||
| G1 | 5 | 0 | 3.6 | 0.64 |
| G2 | 12 | 40 | 6.8 | |
| G3 | 54 | 13.5 | 5.6 | |
| G4 | 98 | 21.2 | 5.2 | |
| Signet ring | 24 | 9.5 | 6.5 | |
| Mucinous | 3 | 0 | 3.7 | |
| Extraperitoneal metastases | ||||
| No | 165 | 19.7 | 6.4 | 0.031 |
| Yes | 34 | 7.7 | 4.2 | |
| JGCA classification | ||||
| P0 (Cyt+) | 4 | 0 | 4.0 | < 0.0001 |
| P1 | 46 | 47.2 | 9.8 | |
| P2 | 40 | 18.8 | 6.7 | |
| P3 | 110 | 5.1 | 4.0 | |
| PCI | ||||
| 0 (Cyt+) | 4 | 0 | 4.0 | < 0.0001 |
| 1-6 | 64 | 39.8 | 8.5 | |
| 7-12 | 25 | 6.7 | 4.2 | |
| 13+ | 104 | 5.5 | 4.1 | |
| Lymph node dissection | ||||
| D0, 1 | 35 | 31.4 | 7.5 | 0.61 |
| D1+, 2 | 9 | 50.0 | 8.9 | |
| Cytoreduction score | ||||
| CC-0 | 9 | 22.2 | 7.5 | 0.065 |
| CC-1 | 19 | 58.2 | 13.1 | |
| CC-2 | 16 | 18.8 | 4.7 | |
JGCA: Japanese Gastric Cancer Association; PCI: Peritoneal cancer index; CC: Completeness of cytoreduction.