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Table 5 Results of a univariate analysis of the associations of various clinical characteristics with overall survival

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

Clinical Characteristic Category HR (Univariate)
95% CI
Sex Male 1.06 (0.48–2.36)
Female (Ref.)
Age (≥ vs. < 51 years) < 51 years 1.57 (0.72–3.42)
≥51 years (Ref.)
Region of recurrence Pelvic 0.81 (0.38–1.70)
Retroperitoneal (Ref.)
Local failure No 2.79 (1.31–5.95)
Yes (Ref.)
Resection grade R0 1.87 (0.82–4.27)
R1 (Ref.)
Association with first-line EBRT Yes 0.53 (0.24–1.16)
No (Ref.)
Association with adjuvant EBRT Yes 1.16 (0.55–2.45)
No (Ref.)
Association with neoadjuvant chemotherapy Yes 0.42 (0.12–1.43)
No (Ref.)
Association with adjuvant chemotherapy Yes 1.65 (0.57–4.78)
No (Ref.)
Distant failure Yes 0.43 (0.18–0.99)
No (Ref.)
Histology Sarcoma (Ref.) 2.75 (1.31–5.75)
Epithelial
Colorectal Tumor Yes (Ref.) 0.47 (0.19–1.16)
No
Retroperitoneal Sarcoma Yes (Ref.) 2.81 (1.33–5.94)
No
Gynecological Tumor Yes (Ref.) 0.73 (0.34–1.58)
No