Characteristics of Analyzed (n = 47) Patients
| Characteristic | Completely responding | Incompletely responding |
| Age (y) | 51 ± 11 (52; 23–70) | 50 ± 18 (53; 18–79) |
| Sex | ||
| Male | 4 | 7 |
| Female | 25 | 11 |
| Number of lesions | ||
| Thyroid remnants | 74 | 49 |
| Metastases | 6 | 39 |
| Variant | ||
| Papillary | 21 | 11 |
| Follicular | 21 | 11 |
| TNM stage | ||
| 1 | 13 | 8 |
| 2 | 4 | — |
| 3 | 12 | 4 |
| 4 | — | 6 |
| Maximum thyroglobulin value in FU (pmol/L) | 11 ± 55 (<0.5; 0.25–290) | 2.5·103 ± 7.0·103 (5.7; < 0.2–2.5·104) |
| First 131I radionuclide therapy | ||
| Yes | 26 | 16 |
| No | 3 | 2 |
| Single therapeutic 131I activity (GBq) | 3.0 ± 0.7 (2.8; 2.8–5.5) | 3.0 ± 1.0 (2.8; 1.1–5.5) |
| Follow-up period (mo) | 19 ± 16 (10; 4.5–61) | 17 ± 17 (9; 3.5–64) |
Descriptive data are shown as mean ± SD, with median and range in parentheses.