Table 1.
Correlation between EBV and clinicopathological features of PTC.
| Parameter | - | EBV Positive N (%) | EBV Negative N (%) | P value |
|---|---|---|---|---|
| Gender | Male | 27 (39.7) | 41 (60.3) | 0.297 |
| Female | 88 (47.1) | 99 (52.9) | ||
| Tumor Diameter | ≤1cm | 85 (44.7) | 105 (55.3) | 0.459 |
| 1~2cm | 26 (47.3) | 29 (52.7) | ||
| 2~4cm | 4 (50.0) | 4 (50.0) | ||
| >4cm | 0 (0.0) | 2 (100.0) | ||
| LNM | Yes | 4 (26.7) | 11 (73.3) | 0.463 |
| No | 111 (46.3) | 129 (53.8) | ||
| TNM stage | I | 103 (41.0) | 148 (59.0) | 0.150 |
| II | 0 (0.0) | 4 (100.0) | ||
| Location | Isthmus | 2 (66.7) | 1 (33.3) | 0.359 |
| Unilateral | 104 (43.9) | 133 (56.1) | ||
| Bilateral | 9 (60.0) | 6 (40.0) | ||
| Focus type | Unifocal | 88 (43.3) | 115 (56.7) | 0.268 |
| Multifocal | 27 (51.9) | 25 (48.1) | ||
| ETE | Yes | 2 (28.6) | 5 (71.4) | 0.373 |
| No | 113 (45.6) | 135 (54.4) | ||
| Hashimoto | Yes | 43 (62.3) | 26 (37.7) | 0.001* |
| No | 72 (38.7) | 114 (61.3) | ||
| Total | - | 115 (45.1) | 140 (54.9) | - |
Note: ETE= Extrathyroid extension, LNM= lymph node metastasis, * P < 0.05.