Baseline Characteristics of the 65 Included Patients at Diagnosis
| Characteristic | Data |
| Sex (n) | |
| Female | 56 (86.2) |
| Male | 9 (13.8) |
| Age at diagnosis | |
| Median (y) | 15 |
| IQR (y) | 13–17 |
| <12 (n) | 7 (10.8) |
| ≥12 (n) | 58 (89.2) |
| Histology (n) | |
| PTC | 53 (81.5) |
| FTC | 12 (18.5) |
| Lymph node metastasis (n) | |
| Yes | 39 (60.0) |
| No | 16 (24.6) |
| Unknown | 10 (15.4) |
| TNM classification (n) | |
| T stage | |
| T1 | 22 (33.8) |
| T2 | 18 (27.7) |
| T3 | 9 (13.8) |
| T4 | 4 (6.2) |
| Tx | 12 (18.5) |
| N stage | |
| N0 | 29 (44.6) |
| N1 | 30 (46.2) |
| Nx | 6 (9.2) |
| M stage | |
| M0 | 52 (80.0) |
| M1 | 6 (9.2) |
| Mx | 7 (10.8) |
| Stage I | 52 (80.0) |
| Stage II | 6 (9.2) |
| Stage unknown | 7 (10.8) |
PTC = papillary thyroid cancer; FTC = follicular thyroid cancer.
Data are n followed by percentage in parentheses, except for age.