Factors

No.

%

Patients

41

100.0

Age (mean)

57.5 (30.8 - 82.3)

Pathological type

Ductal carcinoma

32

78.0

Lobular carcinoma

5

12.2

Mucinos carcinoma

2

4.9

Unknown

2

4.9

Nuclear grade

1

2

6.3

2

9

28.1

3

21

65.6

Subtype

ER+/HER2+

3

7.3

ER+/HER2−

10

24.4

ER−/HER2+

13

31.7

ER−/HER2−

15

36.6

Tumor size

T1

4

9.8

T2

25

61.0

T3

4

9.8

T4

8

19.4

Lymph node metastasis

Negative

11

26.8

Positive

30

73.2

Stage (^*1)

2

18

43.9

3

14

34.1

4

9

22.0

Number of brain metastasis

1

12

29.3

1<

29

70.7

ECOG PS

0

8

19.5

1

10

24.4

2

9

22.0

3

8

19.5

4

6

14.6