Table 1.
Patients’ characteristics.
| Variable | Whole cohort – n (%) |
|---|---|
| Total patients | 209 |
| Age (years) | 41.1 (16–78) SD ±11.6 |
| ≤45 years | 127 (60.7) |
| ≥45 years | 82 (39.3) |
| Gender | |
| Female | 165 (79.0) |
| Male | 44 (21.0) |
| Female to male ratio | 3.8 |
| Type of surgery | |
| Near or total thyroidectomy | 189 (90.4) |
| Lobectomy | 20 (9.6) |
| Lymph node surgery | |
| Central neck dissection | 58 (27.7) |
| Lateral neck dissection | 28 (13.4) |
| Sampling | 19 (9.1) |
| None | 104 (49.7) |
| Mean size (cm) | 2.3 (0.1–10.0) ± 12.4 |
| Histopathologic variants | |
| Classic | 162 (77.5) |
| Follicular | 19 (9.1) |
| Hurthle cell | 6 (2.8) |
| Tall cell | 21 (10.1) |
| Sclerosing | 1 (0.5) |
| Multifocal | |
| Yes | 80 (38.3) |
| No | 129 (61.7) |
| ETE | |
| Yes | 41 (19.6) |
| No | 168 (80.4) |
| LVSI | |
| Yes | 39 (18.6) |
| No | 170 (81.4) |
| Surgical margins | |
| Positive | 21 (10.1) |
| Negative | 188 (89.9) |
| Lymph node metastasis | |
| Yes | 54 (25.8) |
| No | 183 (87.6) |
| Background thyroid tissue | |
| Normal | 64 (30.6) |
| Multi-nodular goiter | 68 (32.6) |
| Lymphocytic thyroiditis | 45 (21.5) |
| Hashimotos’ thyroiditis | 32 (15.3) |
| Distant Metastasis at presentation | 5 (2.4) |
| AJCC staging | |
| I | 107 (51.2) |
| II | 36 (17.2) |
| III | 53 (25.4) |
| IV A | 10 (4.8) |
| IV B | – |
| IVC | 3 (1.4) |
| Mean postoperative TG (ng/mL) | 1.39 (0.1–42,890) |
| BMI (kg/m2) mean | 31.2 (17–72) |
| BMI groups | |
| <18.6 | 3 (1.4) |
| 18.6–25 | 43 (20.6) |
| 26–30 | 58 (27.8) |
| 31–40 | 89 (42.6) |
| >40 | 16 (7.7) |
| RAI dose | |
| No | 53 (25.4) |
| 30 mCi | 64 (30.6) |
| 100 mCi | 45 (21.5) |
| 150–200 mCi | 47 (22.5) |
| RT to neck | 12 (5.7) |
n, number; SD, standard deviation; ETE, extrathyroid extension; LVSI, lymphovascular space invasion; AJCC, Americal Joint Commission on Cancer; TG, thyroglobulin; BMI, body mass index; RAI, radioactive iodine, mCi, millicurie; RT, radiation therapy.