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Characteristics of patients with esophageal squamous cell carcinoma.
| Parameter | No. of patients (n=40) |
|---|---|
| Sex | |
| Male | 28 |
| Female | 12 |
| Age, years | |
| <60 | 15 |
| ≥60 | 25 |
| Tumor location (thoracic portion) | |
| Upper | 8 |
| Middle | 27 |
| Lower | 5 |
| Tumor size, cm | |
| <4 | 23 |
| ≥4 | 17 |
| Histological grade | |
| Well | 13 |
| Moderate | 17 |
| Poor | 10 |
| Tumor stage | |
| I/II | 26 |
| III | 14 |
| Lymph node metastasis | |
| Yes | 27 |
| No | 13 |
