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Table 2 Independent predictive indicators of postoperative radiotherapy administration following breast-conserving surgery

From: Omission of adjuvant radiotherapy following breast-conserving surgery for elderly women with early-stage pure mucinous breast carcinoma

Variables

OR

95% CI

P

Age (years)

 65–69

1

  

 70–74

0.669

0.521–0.860

0.002

 75–79

0.492

0.385–0.630

< 0.001

  > 79

0.154

0.124–0.197

< 0.001

Race/ethnicity

 Non-Hispanic White

1

  

 Non-Hispanic Black

0.917

0.673–1.249

0.582

 Hispanic (All Races)

0.914

0.663–1.259

0.583

 Other

1.432

0.990–2.069

0.056

Grade

 Well-differentiated

1

  

 Moderately differentiated

1.189

1.009–1.400

0.038

 Poorly differentiated/undifferentiated

0.906

0.569–1.442

0.676

Tumor stage

 T1

1

  

 T2

0.931

0.762–1.136

0.480

Chemotherapy

 No/unknown

1

  

 Yes

2.219

1.158–4.251

0.016

  1. CI confidence intervals; OR odds ratio