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Table 2 Predictive factors (Cox regression analysis)

From: Receptor conversion and survival in breast cancer liver metastases

 

Univariate analysis

Multivariable analysis

Predictive factor

HR (95% CI); p value

HR (95% CI); p value

Age at BC

1.018 (1.002–1.033); 0.028

0.867 (0.728–1.032); 0.109

Age at BCLM

1.017 (1.001–1.034); 0.036

1.167 (0.980–1.390); 0.083

Time BC to BCLM

0.998 (0.990–1.007); 0.729

 

TNM BC

 1

Ref = 1.000; 0.438

 

 2

0.739 (0.499–1.217); 0.235

 

 3

0.911 (0.455–1.825); 0.739

 

NHG BC

 1

0.629 (0.228–1.738); 0.371

0.409 (0.112–1.485); 0.174

 2

0.490 (0.315–0.764); 0.002

0.504 (0.275–0.924); 0.027

 3

Ref = 1.000; 0.007

Ref = 1.000; 0.083

No of BCLM

 > 1

Ref = 1.000

Ref = 1.000

 Single

0.538 (0.322–0.896); 0.017

0.545 (0.283–1.048); 0.069

Extrahepatic met

 Yes

Ref = 1.000

 

 No

1.007 (0.679–1.495); 0.971

 

Conversion

 Yes

Ref = 1.000

 

 No

0.906 (0.552–1.485); 0.695

 

Vascular invasion BC

 No

Ref = 1.000

 

 Yes

1.020 (0.641–1.623); 0.935

 

ER BC

 Negative

Ref = 1.000

Ref = 1.000

 Positive

0.651 (0.427–0.994); 0.047

0.711 (0.365–1.383); 0.315

PgR BC

 Negative

Ref = 1.000

Ref = 1.00

 Positive

0.588 (0.392–0.883); 0.010

0.443 (0.223–0.879); 0.020

HER2 BC

 Negative

Ref = 1.000

Ref = 1.000

 Positive

0.471 (0.241–0.921); 0.028

0.277 (0.085–0.901); 0.033

ER BCLM

 Negative

Ref = 1.000

 

 Positive

0.766 (0.505–1.162); 0.210

 

PgR BCLM

 Negative

Ref = 1.000

Ref = 1.000

 Positive

0.468 (0.267–0.823); 0.008

0.757 (0.341–1.682); 0.495

HER2 BCLM

 Negative

Ref = 1.000

Ref = 1.000

 Positive

0.604 (0.345–1.059); 0.078

0.731 (0.292–1.828); 0.503

  1. Covariates with p values < 0.2 in the univariate analysis are indicated in bold and were used in the multivariable analysis. P values < 0.05 in the multivariable analysis are indicated in bold. ER, Estrogen receptor; PgR, Progesterone receptor; HER2, Human Epidermal growth factor receptor 2; BC, primary breast cancer; BCLM, Breast Cancer Liver Metastases