Table 2.
Characteristics of thyroid cancer patients by age group
| Characteristics | < 21 (n = 65) |
21–45 (n = 1343) |
46–59 (n = 905) |
≥ 60 (n = 177) |
χ 2/F | P |
|---|---|---|---|---|---|---|
| Gender | ||||||
| Male (n = 606) | 14 (21.5%) | 335 (24.9%) | 209 (23.1%) | 48 (27.1%) | 2.048 | 0.562 |
| Female (n = 1884) | 51 (78.5%) | 1008 (75.1%) | 696 (76.9%) | 129 (72.9%) | ||
| Weight | 52.17 ± 13.54 | 63.9 ± 11.71 | 65.2 ±10.61 | 63.12 ± 9.89 | 10.609 | < 0.001 |
| Blood type | ||||||
| A (n = 718) | 22 (33.8%) | 401 (29.9%) | 244 (27.0%) | 51 (28.8%) | 153.656 | < 0.001 |
| B (n = 754) | 12 (18.5%) | 487 (36.3%) | 195 (21.5%) | 60 (33.9%) | ||
| AB (n = 382) | 17 (26.2%) | 198 (14.7%) | 122 (13.5%) | 45 (25.4%) | ||
| O (n = 636) | 14 (21.5%) | 257 (19.1%) | 344 (38.0%) | 21 (11.9%) | ||
| Lesion | ||||||
| Unilateral (n = 1473) | 37 (56.9%) | 803 (59.8%) | 540 (59.7%) | 93 (52.5%) | 3.661 | 0.3 |
| Bilateral (n = 1017) | 28 (43.1%) | 540 (40.2%) | 365 (40.3%) | 84 (47.5%) | ||
| Histological type | ||||||
| PTC (n = 1145) | 48 (73.8%) | 671 (50.0%) | 338 (37.3%) | 88 (49.7%) | 131.724 | < 0.001 |
| PTMC (n = 1295) | 11 (16.9%) | 661 (49.2%) | 544 (60.1%) | 79 (44.6%) | ||
| FTC (n = 20) | 5 (7.7%) | 6 (0.4%) | 6 (0.7%) | 3 (1.7%) | ||
| MTC (n = 12) | 1 (1.5%) | 4 (0.3%) | 5 (0.6%) | 2 (1.1%) | ||
| Others (n = 18) | 0 | 1 (0.1%) | 12 (13.3%) | 5 (2.8%) | ||
| LN metastasis | ||||||
| Yes (n = 1174) | 59 (90.8%) | 605 (45.0%) | 441 (48.7%) | 69 (39.0%) | 57.654 | < 0.001 |
| No (n = 1316) | 6 (9.2%) | 738 (55.0%) | 464 (51.3%) | 108 (61.0%) | ||
| Surgery | ||||||
| Total thyroidectomy (n = 2087) | 54 (83.1%) | 1143 (85.1%) | 733 (81.0%) | 157 (88.7%) | 10.103 | 0.018 |
| Near‐total thyroidectomy (n = 403) | 11 (16.9%) | 200 (14.9%) | 172 (19.0%) | 20 (11.3%) | ||
| BRAF detection rate (n = 1708/2490) | 30/65 (46.2%) | 947/1343 (70.5%) | 614/905 (67.8%) | 117/177 (66.1%) | 18.237 | < 0.001 |
| BRAF mutation | ||||||
| Yes (n = 1444) | 16/30 (53.3%) | 778/947 (82.2%) | 544/614 (88.6%) | 106/117 (90.6%) | 37.511 | < 0.001 |
| No (n = 264) | 14/30 (46.7%) | 169/957 (17.7%) | 70/617 (11.3%) | 11/117 (9.4%) | ||
| Follow‐up rate | 56/65 (86.2%) | 1200/1343 (89.4%) | 759/905 (83.9%) | 104/177 (58.8%) | 104.978 | < 0.001 |
| Recurrence | ||||||
| Yes | 10 (15.4%) | 123 (9.2%) | 78 (8.6%) | 11 (6.2%) | 5.135 | 0.162 |
| No | 55 (84.6%) | 1220 (90.8%) | 827 (91.4%) | 166 (93.8%) |
FTC, follicular thyroid cancer; LN, lymph node; MTC, medullary thyroid cancer; PTC, papillary thyroid cancer; PTMC, papillary thyroid microcarcinoma.