Table 3 Patients’s characteristics with fistula/perforation in the SR group (N = 55)
Characteristics | Fistula/perforation N (%) | No fistula/perforation N (%) | P value |
|---|---|---|---|
Total radiation dose (Gy) | 112.9 ± 14.9 | 113.0 ± 11.8 | 0.918 |
Initial radiation dose (Gy) | 62.9 ± 3.8 | 60.7 ± 5.5 | 0.686 |
Salvage radiation dose (Gy) | 50.0 ± 12.2 | 52.4 ± 9.9 | 0.746 |
≤50Gy | 5 (45.5%) | 19 (43.2%) | 0.892 |
>50Gy | 6 (54.5%) | 25 (56.8%) | |
Time after salvage radiotherapy end | |||
≤3 months | 6 (54.5%) | NA* | NA* |
>3 months | 5 (45.5%) |