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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