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Endoscopic and Pathologic Characteristics of the Study Population
| Early-onset group (≤ 40 years) (n = 23) | Older group (≥ 50 years) (n = 92) | p value | |
|---|---|---|---|
| Tumor location n (%) | |||
| Upper | 2 (8.7) | 10 (10.8) | |
| Middle | 8 (34.8) | 18 (19.5) | 0.003 |
| Lower | 8 (34.8) | 61 (66.3) | |
| Entire | 5 (21.7) | 3 (3.4) | |
| Endoscopic appearance (%) | |||
| 0 | 0 | 0 | |
| 1 | 15 (65.2) | 43 (46.7) | |
| 2 | 6 (26.1) | 29 (31.5) | 0.074 |
| 3 | 0 (0) | 17 (18.5) | |
| 4 | 2 (8.7) | 3 (3.3) | |
| 5 | 0 | 0 | |
| Histological type (%) | |||
| Diffuse | 20 (87.0) | 66 (71.7) | 0.181 |
| Intestinal | 3 (13.0) | 26 (28.3) | |
