Skip to main content

Table 1 Comparison of patient and tumor characteristics between palpation-guided and US-guided lumpectomy groups

From: Intraoperative ultrasound reduces the need for re-excision in breast-conserving surgery

Characteristic

Palpation-guided lumpectomy

US-guided lumpectomy

p value

Age, mean (SD), y

51.1 (12.8)

53.4 (13.3)

0.25

Body mass index, mean (SD)

25.2 (4.5)

25.1 (3.5)

0.8

Menopausal status

   

 Premenopausal

37 (46 %)

30 (36 %)

 

 Postmenopausal

43 (54 %)

54 (64 %)

0.2

Tumor location

   

 Outer

59 (74 %)

56 (67 %)

 

 Inner

21 (26 %)

28 (33 %)

0.39

Tumor size

   

 1–10 mm

6 (7 %)

11 (13 %)

 

 11–20 mm

31 (39 %)

29 (35 %)

 

 >20 mm

43 (54 %)

44 (52 %)

0.26

Lymph node status

   

 Negative

49 (61 %)

54 (64 %)

 

 Positive

31 (39 %)

30 (36 %)

0.74

Grade

   

 1

12 (15 %)

10 (12 %)

 

 2

36 (45 %)

44 (52 %)

 

 3

32 (40 %)

30 (36 %)

0.62

EICa

   

 Yes

26 (33 %)

22 (26 %)

 

 No

54 (67 %)

62 (74 %)

0.39

Lymphovascular invasion

   

 Yes

45 (56 %)

50 (60 %)

 

 No

35 (44 %)

34 (40 %)

0.75

Multifocality

   

 Yes

17 (21 %)

11 (13 %)

 

 No

63 (79 %)

73 (87 %)

0.21

ER

   

 Positive

64 (80 %)

73 (87 %)

 

 Negative

16 (20 %)

11 (13 %)

0.29

PR

   

 Positive

54 (67 %)

65 (77 %)

 

 Negative

26 (33 %)

19 (23 %)

0.17

HER2-neu status

   

 Amplified

15 (19 %)

15 (18 %)

 

 Nonamplified

65 (81 %)

69 (82 %)

0.88

  1. EIC extensive intraductal component