Table 1.
Patient characteristics.
| Parameters | Patient number n (%) |
|---|---|
| Gender | |
| Male | 189 (24.1%) |
| Female | 596 (75.9%) |
| Age (year) | 45.5 ± 10.0 |
| Tumor size (mm) | 5.73 ± 2.39 |
| Multifocality | |
| Solitary lesion | 559 (71.2%) |
| Multifocal lesions | 226 (28.8%) |
| Unilateral | 86 (11.0%) |
| Bilateral | 140 (17.8%) |
| Surgery procedure | |
| Lobectomy plus ipsilateral CLND | 576 (73.4%) |
| Total thyroidectomy plus bilateral CLND | 174 (22.2%) |
| Total thyroidectomy plus bilateral CLND and unilateral LLND | 35 (4.5%) |
| Open surgery | 624 (79.5%) |
| Laparoscopic surgery | 161 (20.5%) |
| LNM | |
| LNM | 236 (30.1%) |
| CLNM only | 207 (26.4%) |
| LLNM only | 7 (0.9%) |
| CLNM and LLNM | 22 (2.8%) |
CLND: central lymph node dissection; LLND: lateral lymph node dissection; LNM: lymph node metastasis; CLNM: central lymph node metastasis; LLNM: lateral lymph node metastasis.