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Relationship Between Tumor Locations and CLNM in Solitary PTMC
| CLNM- | CLNM+ | χ2 | P value | Metastasis Rate (%) | |
|---|---|---|---|---|---|
| n=1952 (%) | n=747 (%) | ||||
| Tumor locations | 4.299 | 0.231 | |||
| Upper third | 438 (22.4) | 177 (23.7) | 177/615 (28.8) | ||
| Middle third | 903 (46.3) | 316 (42.3) | 316/1219 (25.9) | ||
| Lower third | 507 (26.0) | 217 (29.0) | 217/724 (30.0) | ||
| Isthmus | 104 (5.3) | 37 (5.0) | 37/141 (26.2) |
Abbreviation: CLNM, central lymph node metastasis.
