Characteristic |
|---|
Age |
 Median | 66 |
 Range | 27–83 |
Sex |
 Male | 17 |
 Female | 11 |
Macroscopic type |
 2 | 3 |
 3 | 11 |
 4 | 14 |
Histological type (Lauren) |
 Intestinal | 3 |
 Diffuse | 25 |
Degree of peritoneal metastasisa |
 P1a | 11 |
 P1b | 4 |
 P1c | 13 |
- aperitoneal metastasis was classified according to the 15th edition of the General Rules for Gastric Cancer Study of the Japanese Research Society for Gastric Cancer
- P1a: greater omentum, lesser omentum, anterior lobe of the transverse colon membrane, or membrane of the pancreatic surface or spleen, P1b: a few scattered metastases to upper abdominal peritoneum, namely, the parietal peritoneum close to the umbilical side and the visceral peritoneum close to the cranial transverse colon, P1c: many metastases to middle or lower peritoneum
