Table 1.
Clinical characteristics of patients with operable ESCC.
| Variables | N | % |
|---|---|---|
| Gender | ||
| Male | 34 | 82.9 |
| Female | 7 | 17.1 |
| Age | ||
| < 61 yr | 16 | 39.0 |
| ≥61 yr | 25 | 61.0 |
| Smoking status | ||
| Non smoker | 8 | 19.5 |
| Smoker | 33 | 80.5 |
| Drinking status | ||
| Non drinker | 20 | 48.8 |
| Drinker | 21 | 51.2 |
| Differentiation | ||
| G1 | 2 | 4.9 |
| G2 | 29 | 70.7 |
| G3 | 10 | 24.4 |
| Family history of tumour | ||
| Without | 30 | 73.2 |
| With | 11 | 26.8 |
| Tumour location | ||
| Upper | 10 | 24.4 |
| Middle | 30 | 73.2 |
| Lower | 1 | 2.4 |
| Clinical T stage | ||
| T1 | 1 | 2.4 |
| T2 | 4 | 9.8 |
| T3 | 28 | 68.3 |
| T4 | 8 | 19.5 |
| Clinical N stage | ||
| N negative | 23 | 56.1 |
| N positive | 18 | 43.9 |
| Clinical TNM Stage | ||
| Incubation stage | 1 | 2.4 |
| Incubation stage | 19 | 46.3 |
| Incubation stage | 21 | 51.3 |
ESCC = esophageal squamous cell carcinoma.