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Table 2 Significant associations between IGF1R expression and clinicopathological features of the 150 canine mammary carcinomas

From: The dog as a naturally-occurring model for insulin-like growth factor type 1 receptor-overexpressing breast cancer: an observational cohort study

Parameters

Fisher’s exact test

IGF1R score 2+

IGF1R score 3+

p-value

OR

95 % CI

p-value

OR

95 % CI

Histological grade

<0.001

      

Grade I or II

 

-

1.00

-

-

1.00

-

Grade III

 

0.007

3.86

1.49–10.99

<0.001

6.54

2.57–18.53

LVI

0.006

      

Absent

 

-

1.00

-

-

1.00

-

Present

 

0.87

1.08

0.44–2.68

0.01

3.11

1.32–7.62

ER expression

0.004

      

Positive (≥ 10 %)

 

-

1.00

-

-

1.00

-

Negative (< 10 %)

 

0.003

4.54

1.69–13.01

0.01

3.29

1.32–8.46

PR expression

0.04

      

Positive (≥ 10 %)

 

-

1.00

-

-

1.00

-

Negative (< 10 %)

 

0.07

2.88

0.93–9.47

0.02

4.10

1.29–14.54

Immunophenotype

0.03

      

Luminal

 

-

1.00

-

-

1.00

-

Triple Negative

 

0.02

2.86

1.16–7.20

0.02

2.88

1.20–7.04

  1. IGF1R score 0–1+ is considered as the reference for each parameter
  2. IGF1R Insulin-like growth factor type 1 receptor, LVI Lymphovascular Invasion, ER Estrogen Receptor, PR Progesterone Receptor, OR Odds Ratio, 95 % CI 95 % Confidence Interval