Table 1 Demographic characteristic of the cases and controls in thyroid carcinoma
Characteristic | Cases (%) | Controls (%) | p | |
|---|---|---|---|---|
Total | 510 | 509 | ||
Sex | Female | 361 (70.8%) | 359 (70.5%) | 0.929 |
Male | 149 (29.2%) | 150 (29.5%) | ||
Age (years) | Mean ± SD | 45.86 ± 14.71 | 45.91 ± 13.57 | 0.357 |
> 45 | 269 (52.7%) | 284 (55.8%) | ||
≤ 45 | 241 (47.3%) | 225 (44.2%) | ||
Lymphatic metastasis | Yes | 91 (17.8%) | ||
No | 79 (15.5%) | |||
Missing | 340 (66.7%) | |||
Tumor type | Papillary | 432 (84.7%) | ||
Follicular | 49 (9.6%) | |||
Medullary | 20 (3.9%) | |||
Undifferentiated | 9 (1.8%) | |||