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Table 2 Results of ddCTC detection and statistical analysis

From: Mesenchymal and stemness circulating tumor cells in early breast cancer diagnosis

    

Khi2

Barnet Woolf

Patient cohort characteristics

negative

ddCTC

positive

ddCTC

P

P

Number

 

37

24

  
    

NS

NS

Histology

Invasive ductal carcinoma

28

19

  
 

Invasive lobular carcinoma

8

3

  
 

Others

1

2

  
    

NS

NS

Molecular

Luminal A

32

21

  

Characteristics

Luminal B

2

1

  
 

Triple negative

2

2

  
 

Her2 overexpression

1

0

  
    

NS

NS

Size tumour

T1

17

12

  
 

T2

18

10

  
 

T3 and T4

2

2

  
    

0.05*

< 0.05*

Lymph node

N+

13

3

  

status

     
 

N-

24

21

  
    

NS

NS

Tumor grade

I

8

5

  
 

II

22

14

  
 

III

5

4

  
 

Unknown

2

1

  
    

ND

ND

Hormonal

ER+

37

21

  

status

ER-

0

3

  
    

NS

NS

 

PR+

28

18

  
 

PR-

9

6

  
  1. Values of P for Khi2 and Barnet Woolf tests are indicated for each clinicopathological characteristics of tumors
  2. *significance level: P 0.05, NS: P > 0.05 for alpha risk 5%; ND: not determined