Table 4 Cox regression of protein expression in metastasis of breast cancer.

ER

− 0.551

0.544

1.026

0.311

0.576

0.198

1.674

HER2

− 0.615

0.727

0.714

0.398

0.541

0.130

2.250

E-Cad

0.158

0.384

0.170

0.680

1.171

0.552

2.487

Ki67

0.357

0.466

0.585

0.445

1.428

0.573

3.563

Molecular subtypes

Luminal A

–

–

–

–

Reference

Reference

Reference

Luminal B

− 0.332

0.602

0.305

0.581

0.717

0.220

2.334

Luminal HER2

− 0.194

0.631

0.094

0.759

0.824

0.239

2.839

HER2-enriched

− 0.232

0.694

0.112

0.738

0.793

0.204

3.088

Basal-like

− 0.615

0.727

0.714

0.398

0.541

0.130

2.250

Lymph node metastasis

0

–

–

–

–

Reference

Reference

Reference

1 ~ 3

− 0.066

0.344

0.037

0.847

0.936

0.477

1.836

4 ~ 9

0.419

0.315

1.765

0.184

1.521

0.819

2.822

 ≥ 10

0.786

0.332

5.599

0.018

2.195

1.144

4.208

MSH2

− 0.064

0.041

2.453

0.117

0.938

0.865

1.016

MLH1

− 0.069

0.045

2.341

0.126

0.934

0.855

1.020

PARP1

0.137

0.037

13.868

< 0.001

1.147

1.067

1.233

XRCC1

0.108

0.044

5.930

0.015

1.114

1.021

1.215

XRCC4

0.084

0.035

5.728

0.017

1.088

1.015

1.166

53BP1

− 0.020

0.034

0.352

0.553

0.980

0.918

1.047

ERCC1

0.066

0.034

3.805

0.051

1.068

1.000

1.141

XPA

0.040

0.030

1.775

0.183

1.041

0.981

1.103