Table 5 SNB and AD practice according to age, treatment and tumour characteristics

From: Breast-conserving surgery with or without radiotherapy vs mastectomy for ductal carcinoma in situ: French Survey experience

 

N

SNB %

AD %

P -value

Tumour size (cm) (1)

 <10

431

11.1

5.6

 

 10–20

291

18.2

10.3

<0.0001

 >20

340

36.3

17.3

 

Nuclear grade (2)

 Low

268

11.2

5.2

 

 Intermediate

490

18.2

10.4

0.0025

 High

515

29.7

13.2

 

Lesion subtype (3)

 Comedo

272

31.6a

11.4b

<0.0001a

 Other

851

18.1

10.3

0.6b

Treatment

 CS

99

7.1

4

 

 CS+RT

797

12.9

5.1

<0.0001

 Mastectomy

393

41.7

22.6

 

Age (years)

 <50

370

26.8c

10.3d

 

 50–60

461

20.4

10.2

0.0074c

 61–70

285

15.8

11.2

0.5d

 >70

173

20.8

9.8

 
  1. Abbreviations: AD=axillary dissection; CS=conservative surgery; RT=radiotherapy; SNB=sentinel node biopsy.
  2. Missing values: (1) 227; (2) 16; (3) 166.
  3. aP-value between lesion subtype (comedo versus other) for SNB.
  4. bP-value between lesion subtype (comedo versus other) for AD.
  5. cP-value according to age (<50 vs >50years) for SNB.
  6. dP-value according to age (<50 vs >50years) for AD.
Back to article page