Table 1 Characteristics of breast cancer patients before, 12, and 24 months after treatment

Age [years]

56 ± 11

56 ± 12

56 ± 11

Stage [number of patients]

 I

14

14

11

 II

11

10

6

 III

2

2

1

unknown

1

1

1

Histological type [number of patients]

 Ductal

21

20

14

 Lobular

3

3

3

 Papillary

1

1

1

 unknown

3

3

1

Involved lymph nodes [%]^a

12.5 ± 23.6

9 ± 15.8

13.2 ± 26

Number of tumor foci

1.3 ± 0.6

1.3 ± 0.6

1.4 ± 0.7

Expression of estrogen receptors [%]^a

66.9 ± 41

66.5 ± 41.9

81.9 ± 29.2

Expression of progesterone receptors [%]^a

41.9 ± 40.7

39.9 ± 40.3

54.8 ± 41.9

ER + , PR + , HER2-

19

18

16

ER-, PR-, HER2 + 

0

0

0

TNBC (ER-, PR-, HER2-)

5

5

1

ER + , PR-, HER2-

1

1

1

TPBC (ER + , PR + , HER2 +)

2

2

0