Table 1.
Characteristics of the Study Population
| Group | EJA (n=120) | Normal (n=88) | |||
|---|---|---|---|---|---|
| No. | 3-yr survival rate (%) | p-value | No. (%) | ||
| Age, yr | |||||
| Mean (range) | 60 (31–82) | 56 (40–80) | |||
| Sex | 0.469 | ||||
| Male | 99 | 76.4 | 61 (69.3) | ||
| Female | 21 | 49.5 | 27 (30.7) | ||
| Smoke | 0.557 | ||||
| Yes | 79 | 63.6 | - | ||
| No | 41 | 69.0 | - | ||
| Alcohol | 0.038 | ||||
| Yes | 28 | 46.0 | - | ||
| No | 92 | 71.7 | - | ||
| Size of tumor, cm | 0.109 | ||||
| ≥5 | 72 | 60.8 | - | ||
| <5 | 48 | 72.9 | - | ||
| Depth of tumor invasion | 0.012 | ||||
| T1+T2+T3 | 36 (7+4+25) | 79.8 | - | ||
| T4 | 84 | 59.5 | - | ||
| Regional lymph nodes | <0.001 | ||||
| N0 | 36 | 73.3 | - | ||
| N1 | 31 | 80.6 | - | ||
| N2 | 30 | 66.5 | - | ||
| N3 | 23 | 33.5 | - | ||
| Metastasis | <0.001 | ||||
| M0 | 116 | 66.9 | - | ||
| M1 | 4 | 25.0 | - | ||
| Histological grade | 0.019 | ||||
| G1 (High) | 15 | 84.0 | - | ||
| G2 (Middle) | 44 | 68.0 | - | ||
| G3 (Low) | 47 | 53.2 | - | ||
| Unknown | 14 | - | - | ||
| TNM stage | 0.055 | ||||
| I+II | 35 (9+26) | 76.8 | - | ||
| III+IV | 85 (74+11) | 60.7 | - | ||
EJA, esophagogastric junction adenocarcinoma.