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