Baseline Characteristics of TT-DTC Patients with Postoperative Unexplained Hyperthyroglobulinemia (n = 254)
| Characteristics | Data |
| Age (n) | |
| <55 y | 220 (86.6%) |
| ≥55 y | 34 (13.4%) |
| Sex (n) | |
| Female | 158 (62.2%) |
| Male | 96 (37.8%) |
| Pathologic subtype (n) | |
| Papillary | 248 (97.6%) |
| Follicular | 6 (2.4%) |
| pT stage (n) | |
| T1 | 154 (60.6%) |
| T2 | 44 (17.3%) |
| T3 | 29 (11.4%) |
| T4 | 15 (5.9%) |
| Tx | 12 (4.7%) |
| pN stage (n) | |
| N0 | 13 (5.1%) |
| N1 | 223 (87.8%) |
| Nx | 18 (7.1%) |
| Stage (n) | |
| I | 230 (90.5%) |
| II | 22 (8.7%) |
| III | 2 (0.8%) |
| Median postoperative Tgon (ng/mL) | 3.7 (IQR, 1.3–9.3) |
| Median postoperative Tgoff (ng/mL) | 27.1 (IQR, 16.1–47.1) |
| Median TSH at 4 wk after THW (mIU/L) | 100 (range, 49.5–100) |
| Mean 24-h radioactive iodine uptake ± SD (%) | 4.7 ± 3.1 |
| Visualization of thyroid bed on post-RAT scan (n) | 249 (98.0%) |
IQR = interquartile range; THW = thyroid hormone withdrawal.