Patient Demographics
| Parameter | THW | rhTSH | P |
| Mean age ± SD (y) | 53 ± 18.7 | 53 ± 14.0 | |
| Sex (n) | |||
| Male | 4 | 11 | Not significant |
| Female | 12 | 13 | Not significant |
| Mean thyroglobulin ± SD (ng/mL) | 652 ± 1,319 | 534 ± 1,092 | Not significant |
| Mean TSH ± SD (μIU/L) | 43 ± 37 | 66 ± 67 | Not significant |
| Mean urine iodine ± SD (μg/dL) | 206.7 ± 238 | 157 ± 160 | Not significant |
| Type of cancer (n) | |||
| Papillary | 9 | 16 | Not significant |
| Papillary–follicular variant | 4 | 2 | Not significant |
| Follicular | 2 | 2 | Not significant |
| Hürthle cell | 1 | 1 | Not significant |
| Tall cell | 0 | 1 | Not significant |
| Insular | 0 | 1 | Not significant |
| Poorly differentiated | 0 | 1 | Not significant |
| More than one radioiodine therapy (n) | 14/16 | 21/24 | Not significant |
| Mean no. of prior therapies + SD | 2 ± 1.2 | 2.22 ± 0.95 | Not significant |
| Mean total GBq + SD | 18.6 ± 9.9 | 19.9 ± 9.4 | Not significant |