Characteristics | Patients | |
---|---|---|
No | Constituent ratio (%) | |
Age | 40–80 y (59 y) |  |
Sex | ||
 Male | 209 | 86.7 |
 Female | 32 | 13.3 |
Pathological type | ||
 Squamous cell carcinomas | 241 | 100 |
Stage (AJCC 8th) | ||
 Stage 0 | 11 | 4.6 |
 Stage I | 36 | 14.9 |
 Stage II | 71 | 29.5 |
 Stage III | 93 | 38.6 |
 Stage IV | 30 | 12.4 |
Grade of differentiation | ||
 Highly differentiated | 10 | 4.2 |
 Moderately differentiated | 109 | 45.2 |
 Poorly differentiated | 47 | 19.5 |
 Undefined grade | 75 | 31.1 |
Location | ||
 Lower thoracic | 241 | 100 |
Chemotherapy | ||
 Neoadjuvant + /adjuvant chemotherapy | 70 | 29.0 |
 Without chemotherapy | 171 | 71.0 |
Surgical method | ||
 Two-incision surgery | 63 | 26.1 |
 Three-incision surgery | 71 | 29.5 |
 Other methods or undefined methods | 107 | 44.4 |
Recurrence | ||
 LN recurrence | 140 | 58.1 |
 No LN recurrence | 101 | 41.9 |
Total | 241 | 100 |