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Summary of clinicopathologic factors of adenocarcinoma
| Characteristics | n (%) |
| Age (yr) | |
| ≤ 50 | 7 (15.9) |
| 51~59 | 7 (15.9) |
| 60~69 | 10 (22.7) |
| ≥ 70 | 20 (45.5) |
| Sex | |
| Male | 24 (54.5) |
| Female | 20 (45.5) |
| Pathologic tumor classification (pT) | |
| pT1 | 2 (4.5) |
| pT2 | 5 (11.4) |
| pT3 | 35 (79.6) |
| pT4 | 2 (4.5) |
| Pathologic lymph node classification | |
| pN0 | 26 (59.1) |
| pN1 | 17 (38.6) |
| pN2 | 1 (2.3) |
| Metastasis classification (M) | |
| M0 | 42 (95.5) |
| M1 | 2 (4.5) |
| Gross type | |
| I (polypoid) | 8 (18.2) |
| II (ulcerative) | 17 (38.6) |
| III (infiltrative) | 19 (43.2) |
