Table IV.
Analysis of prognostic factors by Cox regression analysis in postmenopausal ERα-positive breast cancer patients not treated with endocrine therapy (n=55).
| Clinicopathological features | β coefficient | SEM | Wald value | P-value | Odds ratio | 95% CI |
|---|---|---|---|---|---|---|
| ERβ expression level | ||||||
| − | NA | NA | 2.001 | 0.368 | NA | NA |
| +/++ | 0.372 | 1.194 | 0.097 | 0.756 | 1.450 | 0.140–15.062 |
| +++ | 1.539 | 1.251 | 1.512 | 0.219 | 4.659 | 0.401–54.123 |
| Clinical stage | 0.785 | 1.153 | 0.463 | 0.496 | 2.192 | 0.229–20.987 |
| Chemotherapy | −13.121 | 1076.095 | 0.000 | 0.990 | <0.001 | NA |
| Radiotherapy | 0.622 | 0.916 | 0.461 | 0.497 | 1.862 | 0.309–11.223 |
SEM, standard error of the mean; CI, confidence interval; ER, estrogen receptor; NA, not applicable.