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Table 1 Baseline Characteristics of the Study Population

From: Early prediction of pathological complete response to neoadjuvant chemotherapy combining DCE-MRI and apparent diffusion coefficient values in breast Cancer

Characteristics

pCR (n=24)

Non pCR (n=95)

P Value

Age (y)

 ≤50

12

48

0.963

 >50

12

47

 

Baseline maximum

Tumor diameter (mm)

 <20

0

2

0.592

 20-50

16

51

 

 >50

8

42

 

Clinical T stage

 cT1

0

4

0.261

 cT2

14

38

 

 cT3

5

36

 

 cT4

5

17

 

Clinical N stage

 cN0

0

0

0.062

 cN1

4

40

 

 cN2

10

26

 

 cN3

10

29

 

Receptor status

 ER(+)

7

67

<0.001*

 ER(-)

17

28

 

 PR(+)

2

44

<0.001*

 PR(-)

22

51

 

HER-2

 (+)

11

40

0.742

 (-)

13

55

 

Ki67%

 ≤20%

2

45

<0.001*

 >20%

22

50

 

molecular subtypes

 Luminal A

0

11

<0.001*

 Luminal B1

1

37

 

 Luminal B2

5

18

 

 HER2

6

22

 

 triple negative

12

7

 

Menopausal status

 Postmenopausal

12

42

0.611

 Premenopausal

12

53

 

Histological type

 Invasive ductal carcinoma

24

91

0.582

 Other

0

4

 

Neoadjuvant treatment protocol

 TC

1

1

0.197

 FEC-T

1

1

 

 TEC

18

82

 

 EC-T

3

10

 

 Other

1

1

 
  1. Note:*P value <0.05, indicating that the differences were considered statistically significant. Abbreviations: ER Estrogen receptor, PR Progesterone receptor, HER2 Human epidermal growth factor receptor type 2, T Docetaxel, C Cyclophosphamide, F 5-Fluorouracil, E Epirubicin