| OR | 95% CI | P-value |
---|
Univariate1 | Â | Â | Â |
   ER-negative | 2.20 | 1.19 to 4.06 | 0.02 |
   PR-negative | 2.41 | 1.32 to 4.39 | 0.007 |
   HER4-negative | 3.09 | 1.44 to 6.62 | 0.003 |
Multivariate2 | Â | Â | Â |
   Triple-negative | 3.57 | 1.28 to 9.98 | 0.01 |
- 1 Reference was a group with expression of each protein. 2 Age was controlled in multivariate analysis, and other subtypes with expression of either ER, PR, or HER4 was used as a reference. Triple-negative, the losses of ER, PR, and HER4; ER, estrogen receptor; PR, progesterone receptor; OR, odds ratio; CI, confidence interval.