Table 1 Characteristics of patients with DCIS in the study

From: HER2/neu and Ki-67 expression predict non-invasive recurrence following breast-conserving therapy for ductal carcinoma in situ

 

Breast-conserving surgery+radiotherapy ( N =72)

Breast-conserving surgery ( N =141)

P -value

Age mean (range) (years)

54.4 (33.4, 81.6)

58.1 (27, 86)

0.04

Tumour size (cm)

   

 Mean (range)

1.2 (0.09, 5.0)

0.8 (0.02, 2.5)

<0.001

Comedo necrosis

   

 Yes

48 (67%)

87 (62%)

0.48

 No

20 (28%)

53 (37%)

 

 Missing

4 (5%)

1 (1%)

 

Nuclear grade

   

 Low

5 (7%)

20 (14%)

0.034

 Moderate

27 (38%)

65 (46%)

 

 High

38 (53%)

56 (40%)

 

 Missing

2 (2%)

  

Multifocality

   

 Yes

33 (46%)

50 (35%)

0.14

 No

39 (54%)

91 (65%

 

Microinvasion

   

 Yes

4 (6%)

4 (3%)

0.32

 No

68 (94%)

137 (97%)

 

Size of negative margin (mm)

   

3

40 (56%)

78 (61%)

0.61

 4–9

10 (14%)

22 (17%)

 

10

19 (27%)

24 (19%)

 

 Missing

2 (3%)

4 (3%)

 

Molecular markers

   

 HER2/neu+

19 (26.4%)

39 (27.8%)

0.84

 Psoriasin continuous

7.9 (0 ,100)

5.2 (0, 90)

0.27

 Psoriasin (10%)

18 (25.0%)

20 (14.2%)

0.051

 Calgranulin continuous

5.2 (0, 75)

11.1 (0, 100)

0.06

 Calgranulin (10%)

11 (15.3%)

31 (22.0%)

0.24

 Ki67 continuos

12.9 (0, 80)

13.4 (0, 80)

0.82

 Ki67 (10%)

49 (68.1%)

91 (64.5%)

0.61

 p53–continuous

41.9 (0, 100)

15.1 (0, 100)

<0.001

 p53+(10%)

44 (61.1%)

39 (27.7%)

<0.001

 ER positive

59 (81.9%)

94 (66.7%)

0.02

 PR positive

52 (72.2%)

83 (58.9%)

0.06

 Cyclin D1

71.5 (0, 100)

78.8 (0, 100)

0.047

 p21–continuous

20.1 (0, 100)

20.1 (0, 100)

0.99

 p21+(10%)

41 (57.0%)

74 (52.4%)

0.54