Table 1.
Demographics and Pathological Characteristics of Patients with PTC Stratified by Hashimoto’s Thyroiditis
| Variables | PTC with HT | PTC without HT | P |
|---|---|---|---|
| SEX (F/M) | 548/50 | 1731/597 | <0.001 |
| Age | 43 (34~53) | 45 (36~53) | 0.049 |
| TSH | 2.01 (1.316~2.964) | 1.716 (1.146~2.458) | <0.001 |
| TPOAb | 16.57 (1~246.26) | 1 (1~1.8) | <0.001 |
| TgAb | 35.765 (7.642~184.852) | 1.03 (0.4~2.347) | <0.001 |
| Tumor size | 0.8 (0.6~1.2) | 0.8 (0.6~1.3) | 0.708 |
| Focality (Multifocal/unifocal lesions) | 210/388 | 769/1559 | 0.335 |
| Unilaterality/bilateral lesions | 469/129 | 1790/538 | 0.424 |
| PTC Classical subtype (Yes/No) | 565/33 | 2243/85 | 0.038 |
| p T stage (I+II/III+IV) | 339/259 | 1174/1154 | 0.006 |
| ETE (Yes/No) | 258/340 | 1151/1177 | 0.006 |
| LV invasion (Yes/No) | 2/596 | 40/2288 | 0.011 |
| Intrathyroidal spreading (Yes/No) | 45/553 | 131/2197 | 0.082 |
| LNM (N0/N1a/N1b) | 330/179/89 | 1152/854/322 | 0.008 |
| Central LNM (Yes/No) | 179/330 | 854/1152 | 0.002 |
| The average number of positive central LNs | 0 (0~2) | 0 (0~2.05) | 0.037 |
| The number of central LNS | 7 (4~10) | 4 (2~6) | <0.001 |
| Lateral LNM (Yes/No) | 89/509 | 322/2006 | 0.333 |
| The average number of positive lateral LNs | 3 (1~5.5) | 3 (1~6) | 0.192 |
| The average number of lateral LNs | 19 (13~29) | 19 (12~27) | 0.817 |
Note: Variables in bold show statistical significance.
Abbreviations: ETE, extrathyroidal extension; LV invasion, lymphatic vascular invasion; LNM, lymph nodes metastasis; LNs, lymph nodes; PTC, papillary thyroid cancer; HT, Hashimoto’s thyroiditis.