Table 4. Clinicopathological characteristics of patients.
| Characters | Type | NO. |
|---|---|---|
| Sex | Female | 10 (8.3%) |
| Male | 111 (91.7%) | |
| Alcohol habit (≥50g/day) | No | 68 (56.2%) |
| Yes | 53 (43.8%) | |
| Smoking | No | 41 (33.9%) |
| Yes | 80 (66.1%) | |
| Family History | No | 110 (90.9%) |
| Yes | 11 (9.1%) | |
| Age (mean ± SD) | 57.8±6.4 | |
| Diameter of tumor (mean ± SD) | 3.03±2.26 | |
| Tumor differentiation status | Poor | 13 (10.6%) |
| Moderate | 68 (55.3%) | |
| Well | 40 (32.5%) | |
| Lesion location | Upper thoracic | 44 (36.4%) |
| Middle thoracic | 46 (38.0%) | |
| Low thoracic | 31 (25.6%) | |
| T stage | T1 | 7 (5.8%) |
| T2 | 20 (16.5%) | |
| T3 | 94 (77.7%) | |
| N stage | N0 | 57 (47.1%) |
| N1 | 39 (32.2%) | |
| N2 | 16 (13.2%) | |
| N3 | 9 (7.4%) | |
| TNM stage | I | 7 (5.8%) |
| II | 54 (44.6%) | |
| III | 60 (49.6%) |