Table 1 Patients’ characteristics at baseline
Characteristic | Value |
|---|---|
Number | 66 |
Sex, n (%) | |
Male | 38 (57.6%) |
Female | 28 (42.4%) |
Age (in years), median (range) | 56 (32–79) |
≤ 40 | 3 (4.5%) |
40–50 | 17 (25.8%) |
50–60 | 26 (39.4%) |
>60 | 20 (30.3%) |
Karnofsky performance score (%), median (range) | 81 (60–90) |
Recurrent pattern a, n (%) | |
Sacral invasive type | 31 (47.0%) |
Lateral invasive type | 19 (28.8%) |
Localized type | 16 (24.2%) |
Histopathology | |
Adenocarcinoma | 63 |
Adenosquamous carcinoma | 3 |
Previous surgery | |
None | 3 |
Once | 49 |
Twice | 14 |
Total dose of previous EBRT (Gy) | |
< 50 | 7 |
50–100 | 47 |
> 100 | 12 |
Courses of previous EBRT | |
0 | 4 |
1 | 46 |
2 | 13 |
3 | 3 |
Gross tumor volume (ml), average ± standard deviation | 46.0 ± 48.9 |
Time from tumor recurrence to RIS implantation (in months), median (range) | 16 (0.5–62) |