Features | Number | Local recurrence (%) | χ2 | P |
---|---|---|---|---|
Gender | ||||
Male | 231 | 19 (8.2) | ||
Female | 134 | 1 (0.7) | 9.159 | 0.001 |
Age | ||||
≤ 60 years | 205 | 16 (7.8) | ||
> 60 years | 160 | 4 (2.5) | 7.403 | 0.007 |
Lymph node level | ||||
II/III | 226 | 12 (5.3) | ||
IV | 139 | 8 (5.8) | 0.823 | 0.346 |
Pathological type | ||||
Squamous cell carcinoma | 192 | 13 (6.8) | ||
Adenocarcinoma | 118 | 5 (4.2) | ||
Other types | 55 | 2 (3.6) | 6.802 | 0.032 |
Pathological grade | ||||
Highly differentiated | 204 | 0 (0) | ||
Moderately differentiated | 9 | 2 (22.2) | ||
Poorly differentiated | 152 | 10 (6.5) | 6.594 | 0.086 |
Involved nodal stage | ||||
N1/2 | 355 | 18 (5.1) | ||
N3 | 10 | 2 (20.0) | 6.298 | 0.043 |
Surgery | ||||
Yes | 205 | 6 (2.9) | ||
No | 160 | 14 (8.8) | 9.839 | 0.002 |
Radiotherapy | ||||
Yes | 55 | 2 (3.6) | ||
No | 310 | 18 (5.8) | 0.425 | 0.750 |
Chemotherapy | ||||
Yes | 171 | 6 (3.5) | ||
No | 194 | 14 (7.2) | 2.412 | 0.166 |