Table 1.
Baseline characteristics and thyroid carcinoma distribution between non-HT and HT groups.
| Non-HT (n = 5104) | HT (n = 1328) | χ 2 | P | |
|---|---|---|---|---|
| Age at diagnosis | 48.72 ± 13.74 | 46.21 ± 13.55 | <0.01 | |
| <45 y (n = 2565) | 1972 (38.6%) | 593 (44.7%) | 15.914 | <0.01 |
| ⩾45 y (n = 3867) | 3132 (61.4%) | 735 (55.3%) | ||
| Gender | ||||
| Male (n = 1373) | 1274 (25.0%) | 99 (7.5%) | 192.350 | <0.01 |
| Female (n = 5059) | 3830 (75.0%) | 1229 (92.5%) | ||
| PTC (n = 1722) | 1141 (22.4%) | 581 (43.8%) | 246.051 | <0.01 |
| mPTC (n = 823) | 541 (10.6%) | 282 (21.2%) | 106.826 | <0.01 |
| crPTC (n = 899) | 600 (11.8%) | 299 (22.5%) | 101.467 | <0.01 |
| FTC (n = 115) | 97 (1.9%) | 18 (1.4%) | 1.783 | 0.18 |
| MTC (n = 34) | 26 (0.5%) | 8 (0.6%) | 0.173 | 0.68 |
| ATC (n = 4) | 3 (0.1%) | 1 (0.1%) | 0.046 | 0.83 |
| MC (n = 841) | 556 (43.9%) | 285 (46.6%) | 1.204 | 0.27 |
| Other cancer (n = 101) | 86 (1.7%) | 15 (1.1%) | 2.103 | 0.15 |
| All cancer (n = 1977) | 1354 (26.5%) | 623 (46.9%) | 205.683 | <0.01 |
| Total (n = 6,432) | 5104 | 1328 |
Data are expressed as number (percentage) or mean ± SD unless otherwise specified.