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Table 1 Clinical and pathological characteristics of the 77 patients receiving radiotherapy, with or without the development of local recurrence

From: Gene expression profiling in primary breast cancer distinguishes patients developing local recurrence after breast-conservation surgery, with or without postoperative radiotherapy

All

LR+RT+

LR-RT+

Time to local recurrence, months

n = 30

n = 47

   Median

   

   Range

50

-

Follow-up, months

8–149

-

   Median

   

   Range

-

85

Tamoxifen

-

62–231

Chemotherapy

6

1

Tamoxifen and chemotherapy

0

0

No adjuvant treatment

0

0

 

24

46

Inclusion 1 and 2

Inclusion 1

Inclusion 2

Inclusion 1

Menopause

   

   Pre

12

5

13

   Post

7

1

33

   Not available

0

5

1

Age at operation, years

   

   Median

48

47

57

   Range

27–63

34–73

33–73

Size, millimeters

   

   Median

14

15

15

   Range

2–32

10–20

4–22

   Not available

0

2a

0

Grade

   

   1

3

3

22

   2

8

6

13

   3

7

1

10

   Not available

1

1

2

Estrogen receptor

   

   Positive

9

11

42

   Negative

10

0

5

Progesterone receptor

   

   Positive

5

9

31

   Negative

13

2

11

   Not available

1

0

5

Health care region

   

   South

8

2

30

   West

2

0

9

   South-East

0

9

0

   Stockholm

9

0

8

  1. aOne T1 and one T2. LR-RT+ = no local recurrence after radiotherapy; LR+RT+ = local recurrence developed after radiotherapy.