Table 5 Cox Proportional Hazard Analysis (Univariate) for Disease free survival.

From: A multi-institutional real world data study from India of 3453 non-metastatic breast cancer patients undergoing upfront surgery

Characteristics

Hazard Ratio

Lower CI

Upper CI

p-value

Breast surgery

Mastectomy

1

BCS

0.762

0.593

0.98

0.034

pT size in cm

> 5.1 cm

1

<2 cm

0.476

0.326

0.695

<0.001

2.1-3 cm

0.537

0.384

0.75

<0.001

3.1-5 cm

0.778

0.558

1.085

0.139

Tumour grade

3

1

1

0.265

0.154

0.456

<0.001

2

0.739

0.608

0.897

0.002

Lymphatic invasion

Yes

1

No

0.651

0.534

0.794

<0.001

Lymph nodes

Positive

1

Negative

0.501

0.413

0.608

<0.001

Receptor subgroups

ER/PR Any/ HER2 +

1

ER/PR +/ HER2−

0.515

0.409

0.649

<0.001

Triple Negative

0.756

0.583

0.98

0.034

Adjuvant chemotherapy drugs

Others

1

Anthracycline based

0.582

0.362

0.934

0.025

Anthracycline-taxane based

0.758

0.488

1.176

0.216

Taxane based

0.727

0.428

1.236

0.239

No chemotherapy

0.924

0.583

1.466

0.737

Endocrine therapy in hormone receptor positive

Aromatase inhibitors

1

Tamoxifen

0.954

0.701

1.298

0.765

Tamoxifen switched to Aromatase inhibitors

0.538

0.261

1.109

0.093

  1. BCS, Breast conserving surgery; pT, pathological tumor size; ER, estrogen receptor; PR, progesterone receptor; HER2, human epidermal growth factor receptor 2; CI, Confidence interval.