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Table 4 Chest wall recurrence rates by patient subgroup

From: Close or positive resection margins are not associated with an increased risk of chest wall recurrence in women with DCIS treated by mastectomy: a population-based analysis

Variable

N

Chest wall recurrences

10 year actuarial chest wall recurrence rate

p value

Age

   

0.20

<45

248

7

2.7

 

45–50

243

7

2.9

 

>50

1033

22

2.4

 

Nuclear Grade

   

0.44

Low

99

<5

<5%

 

Intermediate

286

<5

<5%

 

High

426

13

3.5

 

Unreported

713

18

2.6

 

Margin Width

   

0.24

≤2 mm

668

19

2.7

 

>2 mm

436

7

2.1

 

Missing

367

10

2.9

 

Multifocality

   

0.37

Present

340

6

2.7

 

Absent

1184

30

1.9

 

Necrosis

   

0.80

Present

618

14

2.5

 

Absent

906

27

1.3

 

Histologic Subtype

   

0.08

Solid

833

27

3.6

 

Cribriform

256

<5

<5

 

Other

107

<5

<5

 

Unreported

328

<5

<5

 

Year of Diagnosis

    

1994–1996

378

15

4.0

0.1

1997–1999

499

12

2.4

 

2000–2002

647

9

1.4

 

Combined factors

    

Age <45 years + high grade

grgrade

83

<5

<5

 

Age < 45 years + margins <2 mm

130

<5

<5

 

High grade + margins <2 mm

202

6

3.2

Â