Table 5.
A Comparison of Clinical Features between Men and Women with PTC ≤ 2 cm as the First and Only Primary Tumors by Age Group, SEER 1998–2007.
| Patient Characteristics | Age (years) | Female (%) | Male (%) | P |
|---|---|---|---|---|
|
| ||||
| Tumor size | < 45 | 6,362 (49.6) | 1,182 (54.4) | < 0.01 |
| >1cm–2 cm | ≥45 | 5,055 (39.3) | 1,412 (41.3) | 0.03 |
|
| ||||
| Extrathyroidal extension | < 45 | 1,334 (10.5) | 314 (14.6) | < 0.01 |
| ≥45 | 1,422 (11.1) | 441 (13.1) | < 0.01 | |
|
| ||||
| Regional lymph node metastasis | < 45 | 2,645 (31.7) | 829 (52.9) | < 0.01 |
| ≥45 | 1,421 (17) | 785 (34.5) | < 0.01 | |
|
| ||||
| Distant metastasis | < 45 | 79 (0.8) | 31 (1.9) | < 0.01 |
| ≥45 | 127 (1.2) | 69 (2.4) | < 0.01 | |
|
| ||||
| Lobectomy, near total or total thyroidectomy | < 45 | 8,299 (84.5) | 1,438 (86.4) | 0.09 |
| ≥45 | 8,805 (80.8) | 2,305 (80.4) | 0.32 | |
|
| ||||
| Disease-specific mortality | < 45 | 10 (0.1) | 7 (0.3) | < 0.01 |
| ≥45 | 119 (0.9) | 49 (1.4) | < 0.01 | |