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Table 2 Multivariable logistic regression analysis for factors that predict receiving postoperative radiotherapy

From: The effects of postoperative radiotherapy on survival outcomes in patients under 65 with estrogen receptor positive tubular breast carcinoma

Variables OR 95% CI p
Age (years)
  < 50 1   
  ≥ 50 0.874 0.685–1.114 0.276
Race/ethnicity
 Non-Hispanic white 1   
 Non-Hispanic black 0.785 0.479–1.287 0.337
 Hispanic 0.746 0.483–1.153 0.187
 Other 1.206 0.699–2.083 0.501
Grade
 Well differentiated 1   
 Moderately differentiated 0.883 0.596–1.310 0.583
 Poorly/undifferentiated 0.294 0.125–0.694 0.005
Tumor size
 T1c 1   
 T1mic 0.560 0.209–1.500 0.249
 T1a 0.802 0.595–1.081 0.148
 T1b 0.901 0.687–1.182 0.451
PR status
 Negative 1   
 Positive 0.750 0.538–1.047 0.091
Chemotherapy
 No/unknown 1   
 Yes 0.688 0.448–1.057 0.088
  1. CI confidence interval, OR odds ratio, PR progesterone receptor, T tumor