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Table 4 Univariate and Multivariate Analyses for Pelvic Failure-Free Survival

From: The role of adjuvant pelvic radiotherapy in rectal cancer with synchronous liver metastasis: a retrospective study

Prognostic Factor

Group

PFFS (%)

Univariate

Multivariate

RR

95% CI

Age (years)

< 57

73

0.531

−

  
 

≥ 57

77

    

Duke stage

A or B

88

0.399

−

  
 

C

64

    

Rectal lateral margin

negative

73

0.045

0.05

2.6

1.0-6.6

 

positive

51

    

Initial CEA (ng/ml)

< 100

67

0.694

−

  
 

≥ 100

73

    

Adjuvant pelvic RT

no

65

0.028

0.04

0.3

0.1-0.9

 

yes

81

    
  1. Abbreviations: CEA = carcinoembryonic antigen; PFFS = pelvic failure free survival; RR = relative risk; CI = confidence interval
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Radiation Oncology

ISSN: 1748-717X

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