Table 1.
Clinical characteristics in the overall patient population according to SPM occurrence.
| All Patients (n = 1237) |
Without SPM (n = 1212) |
With SPM (n = 25) |
p Value | |
|---|---|---|---|---|
| Age (years) | 45 ± 14 | 45 ± 14 | 55 ± 16 | 0.001 |
| Age ≥ 55 years | 338 (27) | 323 (27) | 15 (60) | 0.001 |
| Female gender, n (%) | 985 (80) | 967 (80) | 18 (72) | 0.34 |
| Papillary type, n (%) | 641 (52) | 627 (52) | 14 (56) | 0.67 |
| >T2, n (%) | 206 (87) | 200 (16) | 6 (24) | 0.17 |
| N1, n (%) | 203 (16) | 203 (17) | 0 (0) | 0.02 |
| 131I cumulative activity (MBq) | 5722 ± 5867 | 5710 ± 5820 | 6364 ± 5176 | 0.58 |
| ≤1850 MBq, n (%) | 131 (11) | 130 (11) | 1 (4) | 0.28 |
| 1850–3700 MBq, n (%) | 693 (56) | 682 (56) | 11 (44) | 0.22 |
| >3700 MBq, n (%) | 413 (33) | 400 (33) | 13 (52) | 0.05 |
| Follow-up duration (months) | 89 ± 73 | 89 ± 73 | 133 ± 73 | 0.001 |
Data are presented as the mean value ± SD or number and percentage (%).