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Table 3 Patients’s characteristics with fistula/perforation in the SR group (N = 55)

From: Salvage radiotherapy in patients with local recurrent esophageal cancer after radical radiochemotherapy

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%)
  1. *NA: not-available.