Table II. Pathological features of PTCs.
| Total n=244 (%) | Group A n=126 (%) | Group B n=118 (%) | Univariate p value* | |
| pT | ||||
| 1-2 | 177 (73) | 80 (63.5) | 97 (82.2) | |
| 3-4 | 67 (27) | 46 (36.5) | 21 (17.8) | 0.0011 |
| pN | ||||
| 0 | 67 (53) | 26 (22) | ||
| 1a | 59 (47) | 7 (6) | ||
| X | 0 | 85 (72) | ||
| Size (mm) | ||||
| Mean (range) | 17 (1-60) | 15 (0,12-100) | ||
| ≤ 10 mm | 92 (38) | 36 (29) | 56 (47) | 0.0024 |
| Histologic variants | ||||
| Low risk | 230 (94) | 119 (94.5) | 111 (94) | |
| - Classic | 88 (70) | 79 (67) | ||
| - Follicular | 30 (24) | 32 (27) | ||
| - Warthin-like | 1 (0.5) | 0 | ||
| High risk | 14 (6) | 7 (5.5) | 7 (6) | |
| - Tall cell | 4 (3) | 2 (2) | ||
| - Desmoplastic | 0 | 1 (0.75) | ||
| - Sclerosant | 2 (2) | 3 (2.5) | ||
| - Anaplastic spot | 0 | 1 (0.75) | ||
| - Insular | 1 (0.5) | 0 | 0.90 | |
| Multifocality | ||||
| Yes | 105 (43) | 57 (45) | 48 (41) | |
| No | 139 (57) | 69 (55) | 70 (59) | 0.47 |
| Thyroiditis | ||||
| Yes | 52 (21) | 32 (25) | 20 (17) | |
| No | 192 (79) | 94 (75) | 98 (83) | 0.11 |
*
Chi-Square.