Table 1. Patient characteristics for tissue analysis by DNA microarraya.
| Gender | Lymph node metastasis b | ||
| Male | 11 | N0 | 5 |
| Female | 10 | N1 | 11 |
| Age (years) | N2 | 4 | |
| 38∼85 (Avg: 61) | N3 | 1 | |
| Peritoneal metastasis c | Histologic type d | ||
| P0 | 14 | tub1 | 4 |
| P1 | 7 | tub2 | 3 |
| por1 | 7 | ||
| Cytology e | por2 | 5 | |
| CY0 | 19 | sig | 1 |
| CY1 | 2 | ads | 1 |
| Hepatic metastasis f | |||
| H0 | 20 | ||
| H1 | 1 | Stage | |
| Ia | 2 | ||
| Depth of invasion g | Ib | 3 | |
| T1 | 2 | II | 2 |
| T2 | 7 | IIIa | 3 |
| T3 | 11 | IIIb | 2 |
| T4 | 1 | IV | 9 |
Patient characteristics were determined according to the Japanese Classification of Gastric Carcinoma (2nd edition).
N0, none; N1, metastasis to Group 1 lymph nodes; N2, metastasis to Group 2 lymph nodes; N3, metastasis to Group 3 lymph nodes.
P0, absent; P1, present.
tub1, well-differentiated tubular adenocarcinoma; tub2, moderately differentiated tubular adenocarcinoma; por1, poorly differentiated adenocarcinoma (solid type); por2, poorly differentiated adenocarcinoma (non-solid type); sig, signet-ring cell carcinoma; ads, adenosquamous carcinoma.
Cytology in peritoneal washings; CY0, negative; CY1, positive.
H0, absent; H1, present.
T1, within mucosa or submucosa; T2, until muscularis propria or subserosa; T3, penetration of serosa; T4, invasion of adjacent structures.