Table 4 Univariate overall survival of cases as regards clinicopathological parameters

T stage grouping

 Early

43.636

1.710

2.102

0.147

 Advanced

38.981

2.791

N

 N0

48.090

2.076

8.747

0.033^*

 N1

45.651

2.304

 N2

37.698

2.926

 N3

38.587

2.536

AJCC stage grouping

 Early

47.693

1.616

8.589

0.003^*

 Advanced

38.315

2.035

Metastasis

 No

45.365

1.426

42.814

<0.001^*

 Yes

25.048

1.901

Grade

 Grade I

42.0

0.0

17.218

<0.001^*

 Grade II

38.277

0.908

 Grade III

29.712

2.284

 Low grade

44.680

1.510

17.0

<0.001^*

 High grade

29.947

2.367

Necrosis

 Absent

43.048

1.541

4.937

0.026^*

 Present

37.020

2.954

NPI group

 Poor

36.187

2.040

12.949

0.002^*

 Moderate

46.349

1.936

 Good

39.909

1.040

Lymphovascular invasion

 No

43.415

1.489

18.531

<0.001^*

 Yes

26.000

2.345

ER

 Negative

42.055

2.620

0.106

0.745

 Positive

42.331

1.803

PR

 Negative

40.609

2.398

1.329

0.249

 Positive

43.274

1.868

Her2neu

8.626

0.003^*

 Negative

44.946

1.758

 Positive

37.223

2.574

Ki 67 Proliferative index

 Low proliferative index

44.750

1.896

2.519

0.112

 High proliferative index

39.817

2.140

Molecular subtype

 Luminal

106

78.5

8.075

0.044^*

 Her2neu-enriched

40.840

3.599

 Basal-like (triple negative)

43.771

2.659