Table 4.
Associations between coexistence of protrusion with contact and extrathyroidal extension of papillary thyroid carcinomas
| Characteristic | Extrathyroidal extension |
p value | ||
|---|---|---|---|---|
| + | - | |||
| 3D | C1 group (n = 45) | 16 | 29 | |
| C1P1 (n = 32) | 11 | 21 | 0.795a | |
| C1P0 (n = 13) | 5 | 8 | ||
| 2D | C1 group (n = 47) | 16 | 31 | |
| C1P1 (n = 31) | 9 | 22 | 0.313a | |
| C1P0 (n = 16) | 7 | 9 | ||
3D, three-dimentional; C1, presence of contact; C1P1, presence of both contact and protrusion; C1P0, presence of contact without protrusion; 2D, two-dimentional.
a
Chi-square test.