Table 1.
Patient characteristics
| EPIC group (n=65) | Non-EPIC group (n=180) | p-value | |
|---|---|---|---|
| Gender | 0.366 | ||
| Female | 20 | 68 | |
| Male | 45 | 112 | |
| Age (mean±SD, yr) | 55.1±10.5 | 55.7±10.0 | 0.706 |
| Size of tumor (mean±SD, cm) | 6.9±2.9 | 6.9±3.0 | 0.736 |
| Tumor location | 0.120 | ||
| Upper third | 28 | 73 | |
| Middle third | 19 | 75 | |
| Lower third | 18 | 32 | |
| Pathological depth of invasion | 0.246 | ||
| pT2 | 0 | 2 | |
| pT3 | 13 | 37 | |
| pT4a | 52 | 132 | |
| pT4b | 0 | 9 | |
| No. of retrieved lymph nodes (mean±SD) | 37.7±15.9 | 38.4±15.2 | 0.979 |
| Pathological lymph node metastasis | 0.158 | ||
| pN0 | 6 | 30 | |
| pN1 | 10 | 14 | |
| pN2 | 17 | 39 | |
| pN3 | 32 | 97 | |
| Stage | 0.433 | ||
| IB | 0 | 1 | |
| IIA | 0 | 1 | |
| IIB | 6 | 26 | |
| IIIA | 13 | 20 | |
| IIIB | 24 | 61 | |
| IIIC | 22 | 71 | |
| Differentiation | 0.540 | ||
| Differentiated | 24 | 58 | |
| Undifferentiated | 41 | 122 | |
| Extent of gastric resection | 0.665 | ||
| Subtotal gastrectomy | 34 | 100 | |
| Total gastrectomy | 31 | 80 | |
| Adjuvant chemotherapy | 0.907 | ||
| Yes | 16 | 43 | |
| No | 49 | 137 |
EPIC, early postoperative intraperitoneal chemotherapy; SD, standard deviation.