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Table 4 Associations of treatment-related variables with overall survival after 8 years (log-rank)

From: Intraoperative radiation therapy for the treatment of recurrent retroperitoneal and pelvic tumors: a single-institution analysis

Treatment-Related Variables Category Overall Survival P
Sex Male 28.6% 0.876
Female 25.5%  
Age (years) < 51 30.6% 0.243
> 51 23.5%  
Region of recurrence Pelvic 20.8% 0.588
Retroperitoneal 33.4%  
Local failure Yes 44.2% 0.006
No 0%  
Distant failure Yes 10.3% 0.042
No 52.9%  
Resection grade R0 35.8% 0.12
R1 0%  
EBRT (first-line treatment) Yes 17.9% 0.109
No 30.4%  
Association with adjuvant EBRT Yes 21.4% 0.687
No 34.7%  
Association with neoadjuvant chemotherapy Yes 0% 0.157
No 28.6%  
Association with adjuvant chemotherapy Yes 38.1% 0.347
No 23.1%  
Histology Sarcoma 6,7% 0.005
Epithelial 40%  
Group of tumors Colorectal Tumors 43% 0.09
Retroperitoneal Sarcomas 7% 0.005
Gynecological Tumors 30% 0.43
  1. Legend: EBRT External beam radiation therapy