Table 2.
Clinical characteristics of 64 patients with ESCC
| Parameters | Class | Frequency | Proportion (%） |
|---|---|---|---|
| Age | <60 | 29 | 45.30 |
| >60 | 35 | 54.70 | |
| Sex | male | 41 | 64.10 |
| female | 23 | 35.90 | |
| Tea | never | 48 | 75.00 |
| occasionally | 8 | 12.50 | |
| Often | 8 | 12.50 | |
| Smoking | light | 25 | 39.10 |
| middle | 3 | 4.70 | |
| deep | 36 | 56.30 | |
| Drinking | yes | 20 | 31.20 |
| no | 44 | 68.80 | |
| Hot food | yes | 34 | 53.10 |
| no | 30 | 46.90 | |
| Hard food | yes | 22 | 34.40 |
| no | 42 | 65.60 | |
| Tumor site | upper | 11 | 17.20 |
| middle | 38 | 59.40 | |
| lower | 14 | 21.90 | |
| Lymphnode metastasis | yes | 13 | 20.30 |
| no | 51 | 79.70 |
Abbreviation: ESCC, esophageal squamous cell carcinoma.