Table 4 Univariate analysis of DFS and OS according to PELP1 protein expression in different subgroups

Age (years)

≤50

1.636

0.201

1.759

0.185

>50

1.183

0.277

1.246

0.264

Tumor size (cm)^a

≤2

4.274

0.039

3.398

0.065

>2, ≤5

0.441

0.507

0.813

0.367

>5

1.936

0.164

1.134

0.284

Lymph node stage

negative

0.251

0.617

0.008

0.927

positive

0.770

0.380

1.974

0.160

Grade

G1

1.864

0.172

0.688

0.407

G2

2.369

0.124

2.327

0.127

G3

0.188

0.665

0.461

0.497

Clinical stage^a

I

1.231

0.267

1.250

0.264

II

0.258

0.612

0.009

0.926

III and IV

1.814

0.178

3.220

0.073

Histological type

IDC

1.278

0.258

1.399

0.237

ILC

1.780

0.182

1.591

0.207

Others

0.928

0.335

0.928

0.335

Ki-67 LI

Low (≤14 %)

0.148

0.700

0.161

0.688

High (>14 %)

5.069

0.024

5.559

0.018

Chemotherapy

AC

1.144

0.285

1.192

0.275

AC-T

1.910

0.157

1.871

0.171

Others

0.000

0.994

0.500

0.480

Radiotherapy

No

2.806

0.094

3.262

0.071

Yes

0.460

0.498

0.488

0.485