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Table 5 Clinical prognostic factors in BCS group(n=127), Kaplan Meier log-rank test

From: Is radiotherapy necessary for intermediate risk ductal carcinoma in situ after breast conserving surgery?

Variable

Recurrence

No recurrence

Percentage

P value (log rank)

Age (yr)

   

.789

  ≤40

1

17

1/18(5.6%)

  41-60

5

91

4/96(4.2%)

  ≥61

0

13

0

Tumor size (mm)

   

<.001

  ≤15

0

58

0

  16-40

1

42

1/43(2.3%)

  ≥41

5

21

5/26(19.2%)

Tumor grade

   

.002

  1

0

28

0

  2

2

67

1/69(1.4%)

  3

4

26

4/30(13.3%)

VNPI score

   

.173

  4-6

0

38

0

  7-9

5

70

5/75(6.7%)

  10-12

1

13

1/14(7.1%)

ER status

   

.016

  (+)

2

94

2/96(2.1%)

  (-)

4

27

4/31(12.9%)

RT

   

.184

  Yes

6

89

6/95(6.3%)

  No

0

32

0