Table 2 Multivariate survival analysis (Cox regression model) of variables (with and without COL11A1) predicting outcome in terms of ipsilateral local all recurrences (A) and invasive recurrences (B) in patients treated by breast conserving surgery in pure DCIS

From: Collagen (XI) alpha-1 chain is an independent prognostic factor in breast ductal carcinoma in situ

Conventional clinicopathological parameters associated with high-risk DCIS

Parameters

Hazard ratio (HR)

95% confidence interval (CI)

 

p value

  

Lower

Upper

A) All recurrences

Patient Age

0.4

0.2

0.8

0.006

DCIS presentation

1.5

0.9

2.4

0.111

DCIS size

1.5

1.1

2.1

0.040

DCIS nuclear Grade

1.9

1.3

2.7

0.001

Comedo necrosis

0.6

0.4

0.9

0.049

Margin status

0.8

0.7

0.9

0.004

COL11A1 and other clinicopathological parameters associated with high-risk DCIS

High stromal COL11A1 expression

13.2

6.9

25.4

<0.0001

Patient Age

0.6

0.3

1.4

0.261

DCIS presentation

1.9

0.9

3.9

0.084

DCIS size

1.1

0.7

1.9

0.609

DCIS nuclear Grade

1.6

0.9

3.1

0.123

Comedo necrosis

0.5

0.2

1.2

0.120

Margin status

1.0

0.9

1.1

0.728

B) Invasive recurrence

Conventional clinicopathological parameters associated with high-risk DCIS

Patient Age

0.5

0.2

1.3

0.156

DCIS presentation

1.4

0.8

2.6

0.245

DCIS size

1.8

1.1

2.4

0.013

DCIS nuclear Grade

1.9

1.1

3.0

0.013

Comedo necrosis

0.7

0.4

1.3

0.274

Margin status

0.9

0.8

1.1

0.075

COL11A1 and other clinicopathological parameters associated with high-risk DCIS

High stromal COL11A1 expression

11.2

4.9

25.8

<0.0001

Patient Age

0.9

0.3

3.3

0.974

DCIS presentation

2.0

0.8

5.2

0.156

DCIS size

1.5

0.7

2.9

0.258

DCIS nuclear Grade

1.9

0.8

4.4

0.119

Comedo necrosis

0.5

0.2

1.3

0.159

Margin status

1.1

0.9

1.2

0.386

  1. Significant p values are in bold
  2. COL11A1 collagen (XI) alpha-1 chain, DCIS ductal carcinoma in situ