Table 1 Demographics and clinical characteristics of patients undergoing central lymph node dissection
Clinicopathological properties | Â | Â | Central lymph node metastasis | |||
|---|---|---|---|---|---|---|
| Â | Total | No | Â | Yes | Â | |
Subjects, n | Â | 966 | 599 | 62.0% | 367 | 38.0% |
Gender | Female | 772 | 496 | 64.2% | 276 | 35.8% |
Male | 194 | 103 | 53.1% | 91 | 46.9% | |
Age (years) | ≤35 | 229 | 97 | 42.4% | 132 | 57.6% |
35–45 | 248 | 146 | 58.9% | 102 | 41.1% | |
45–55 | 273 | 193 | 70.7% | 80 | 29.3% | |
> 55 | 216 | 163 | 75.5% | 53 | 24.5% | |
Tumor size(cm) | ≤0.5 | 178 | 145 | 81.5% | 33 | 18.5% |
0.5–1.0 | 363 | 255 | 70.2% | 108 | 29.8% | |
1.0–2.0 | 275 | 140 | 50.9% | 135 | 49.1% | |
> 2.0 | 150 | 59 | 39.3% | 91 | 60.7% | |
Ultrasound feature | ||||||
 Microcalcification | No | 706 | 459 | 65.0% | 247 | 35.0% |
Yes | 260 | 140 | 53.8% | 120 | 46.2% | |
 Hypoechoic solid nodules | No | 183 | 112 | 61.2% | 71 | 38.8% |
Yes | 783 | 487 | 62.2% | 296 | 37.8% | |
 Irregular shape | No | 631 | 401 | 63.5% | 230 | 36.5% |
Yes | 335 | 198 | 59.1% | 137 | 40.9% | |
 Infiltrative margins | No | 252 | 158 | 62.7% | 94 | 37.3% |
Yes | 714 | 441 | 61.8% | 273 | 38.2% | |
 Intra-nodular vascularity | No | 328 | 228 | 69.5% | 100 | 30.5% |
Yes | 638 | 371 | 58.2% | 267 | 41.8% | |
Multifocality | No | 679 | 439 | 64.7% | 240 | 35.3% |
Yes | 287 | 160 | 55.7% | 127 | 44.3% | |
Bilateral | No | 767 | 491 | 64.0% | 276 | 36.0% |
Yes | 199 | 108 | 54.3% | 91 | 45.7% | |
Extrathyroidal extension | No | 759 | 500 | 65.9% | 259 | 34.1% |
Yes | 207 | 99 | 47.8% | 108 | 52.2% | |
Distant metastasis | No | 961 | 598 | 62.2% | 363 | 37.8% |
Yes | 5 | 1 | 20.0% | 4 | 80.0% | |
Hashimoto’s thyroiditis | No | 604 | 384 | 63.6% | 220 | 36.4% |
Yes | 362 | 215 | 59.4% | 147 | 40.6% | |
TSH value |  |  | 2.10 ± 1.65 | 2.13 ± 1.49 | ||