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| Variables | P value | OR | 95% CI |
|---|---|---|---|
| Sum diameter of all tumors (≥1.0 cm) | 0.041 | 2.295 | 1.036–5.086 |
| Positive CLNM via ultrasonography | 0.009 | 5.882 | 1.562–22.153 |
| Tumor number (≥3) | 0.114 | – | – |
| Extrathyroidal invasion | 0.132 | – | – |
| Lateral neck lymph node metastases | 0.322 | – | – |
CLNM, central lymph node metastases; UM-PTMC, unilateral multifocal papillary thyroid microcarcinoma; OR, odds ratio; 95% CI, 95% confidence interval.
