Features | Variables | No. (%) |
---|---|---|
Age | ≥ 60 | 36 (60) |
 | < 60 | 23 (40) |
Smoking | Yes | 55 (93.2) |
 | No | 4 (6.8) |
Gender | Male | 58 (98.3) |
 | Female | 1 (1.7) |
Pathological stage | Early (T1-T2) | 13 (22) |
 | Advanced (T3-T4) | 46 (78) |
Lymphatic metastasis | Presence | 38 (64.4) |
 | Absence | 21 (35.6) |
Pathological differentiation | Low | 13 (22) |
 | Moderate and high | 46 (78) |