. 2015 Aug 5;17(1):101. doi: 10.1186/s13058-015-0621-0

Table 3.

Independent prognostic factors in Cox multivariate model for recurrence-free survival in years

Variables	Regression coefficent	Standard error	Regression coefficient/standard error	χ ²	P	Exp (Coef)	95 % CI
Variables	Regression coefficent	Standard error	Regression coefficient/standard error	χ ²	P	Exp (Coef)	Lower	Upper
ER⁺	−0.612	0.252	−2.430	5.903	0.0151	0.542	0.331	0.888
HER-2⁺	0.050	0.239	0.211	0.045	0.8326	1.052	0.659	1.679
Ki67 >20%	−0.711	0.269	−2.642	6.981	0.0082	0.491	0.290	0.832
Node positivity	−1.096	0.394	−2.780	7.730	0.0054	0.334	0.154	0.724
Size >22 mm	−0.865	0.237	−3.657	13.372	0.0003	0.421	0.265	0.669
Histological grade 3	−0.071	0.268	−0.266	0.071	0.7899	0.931	0.550	1.575
CD163 >167.5	0.580	0.229	2.531	6.408	0.0114	1.786	1.140	2.798

ER estrogen receptor, HER-2 human epidermal growth factor receptor 2, Coef regression coefficient, χ ² chi-squared, Exp(Coef) hazard ratio