Table 3.
Comparison between characteristics of patients positive and negative for metastatic accumulation on Rx-WBS
| Metastatic Accumulation | |||
| Positive | Negative | P value | |
| Number | 84 | 209 | |
| Age, Median (range) [years] | 52.5
(19–79) |
55
(20–79) |
0.147 |
| Age, ≤ 45 years / > 45 years | 28 / 56 | 64 / 145 | 0.651 |
| Female / Male | 52 / 32 | 147 / 62 | 0.162 |
| Papillary / Others | 76 / 8 | 186 / 23 | 0.709 |
| pT1 / pT2 / pT3 / pT4 | 13 / 6 / 50 / 14 | 23 / 15 / 133 / 24 | 0.545 |
| pN0 / pN1 | 1 / 80 | 15 / 178 | 0.035 |
| Administration dose of RAI | 69 / 8 / 7 | 180 / 12 / 17 | 0.504 |
| 1,110 MBq / 1,850 MBq / 3,700 MBq | |||
| Period from total thyroidectomy to ablation | 51 / 33 | 120 / 89 | 0.605 |
| ≤ 180 days / > 180 days | |||
| Withdrawal thyroid hormone / rhTSH | 15 / 69 | 31 / 178 | 0.520 |
| TSH (μU/ml), Median (range) | 127.5
(21.9–403.4) |
128.0
(8.1–626.3) |
0.925 |
|
TSH,
≤ 30 μU/ml / > 30 μU/ml |
2 / 82 | 3 / 206 | 0.572 |
| Tg (ng/ml), Median (range) | 5.48
(< 0.1–1612) |
5.26
(< 0.1–21529) |
0.722 |
|
Tg,
≤ 1.5 ng/ml / > 1.5 ng/ml |
15 / 69 | 63 / 146 | 0.031 |
| Tg-Ab (IU/mL), Median (range) | 13.7
(< 10–307.1) |
13.2
(< 10–1796) |
0.561 |
|
Tg-Ab
≤ 100 IU/mL / > 100 IU/mL |
79 / 5 | 180 / 21 | 0.230 |
RAI = Radioactive iodine, rhTSH = Recombinant human thyroid stimulating hormone, Tg = Thyroglobulin, Tg-Ab = Anti-thyroglobulin antibody, TSH = Thyroid stimulating hormone