Table 4 Cox multivariate survival analysis (METABRIC Discovery cohort).

From: Tumor necrosis associates with aggressive breast cancer features, increased hypoxia signaling and reduced patient survival

Variable

n(%)

HR

95% CI

P-value

HR

95.0% CI

P-value

Unadjusted

Adjusted

Tumor size

Ā Ā Ā 

 < 0.001

Ā Ā 

0.003

 ≤ 20Ā mm

409 (44)

1.0

Ā Ā 

1.0

Ā Ā 

 > 20Ā mm

530 (56)

2.0

1.5–2.6

Ā 

1.5

1.2–2.0

Ā 

Histologic grade

Ā Ā Ā 

 < 0.001

Ā Ā 

0.06

Grade 1/2

456 (49)

1.0

Ā Ā 

1.0

Ā Ā 

Grade 3

483 (51)

1.9

1.4–2.4

Ā 

1.3

0.98–1.8

Ā 

Lymph node status

Ā Ā Ā 

 < 0.001

Ā Ā 

 < 0.001

Negative

482 (51)

1.0

Ā Ā 

1.0

Ā Ā 

Positive

457 (49)

2.5

1.9–3.2

Ā 

2.0

1.5–2.7

Ā 

BCNS score

939 (100)

1.005

1.003-

1.006

 < 0.001

1.003

1.001-

1.005

0.006

  1. HR = Hazard ratio, CI = Confidence interval, n = number of patients.
  2. The Breast Cancer Necrosis Signature (BCNS) score included as continuous variable (n = 939).