Table 1 Characteristics of patients with head and neck cancer and health controls
Variables | Cases | Control | P |
|---|---|---|---|
N | 535 | 538 | |
Age | |||
Mean ± SD, years | 46.8 ± 15.1 | 46.9 ± 13.8 | 0.875 |
> 46 years | 296 (55.3%) | 301 (55.9%) | |
≤ 46 years | 239 (44.7%) | 237 (44.1%) | |
Gender | 0.908 | ||
Male | 205 (38.3%) | 208 (38.7%) | |
Female | 330 (61.7%) | 330 (61.3%) | |
Lymph nodes metastasis | |||
Yes | 101 (18.9%) | ||
No | 82 (15.3%) | ||
Unavailable | 352 (65.8%) | ||
Stage | |||
I-II | 140 (26.2%) | ||
III-IV | 34 (6.4%) | ||
Unavailable | 361 (67.5%) | ||
Type of head and neck cancer | |||
Nasopharyngeal carcinoma | 75 (14.0%) | ||
Thyroid cancer | 398 (74.4%) | ||
Laryngeal cancer | 43 (8.0%) | ||
Parotid gland carcinoma | 19 (3.6%) | ||