Table 2 Patient characteristics

Number of patients

55

57

Age

60.6

58.9

.533

Lymph node Metastases

.150

Absent (N0)

27 (50.0)

35 (62.5)

1-3 axillary LNM (pN1bi)

4 (7.4)

7 (12.5)

1-3 axillary LNM (pN1biii)

18 (33.3)

8 (14.3)

1-3 axillary LNM (pN1biv)

0

3 (5.4)

4-9 axillary LNM (pN2)

1 (1.9)

1 (1.8)

Unknown (pNx)

5 (9.1)

3 (5.3)

Histological Type

.003

Ductal

35 (66)

39 (69.6)

Lobular

11 (20.8)

3 (5.4)

Ductal-lobular

4 (7.5)

3 (5.4)

Mucinous

1 (1.9)

2 (3.6)

Medullary

1 (1.9)

4 (7.1)

Micropapillary

1 (1.9)

2 (3.6)

Tubulary

0

3 (5.4)

Not specified

2 (3.6)

1 (1.8)

Menopausal Status

.503

Premenopausal

13 (47.9)

16 (37.5)

Postmenopausal

37 (52.1)

36 (62.5)

Matched Group

Multicentric/ multifocal (%)

Unifocal (%)

P- value

Number of patients

23

23

Age

57

68

.104

Histological Type

.120

Ductal

16 (69.6)

15 (65.2)

Lobular

5 (21.7)

3 (13.0)

Ductal-lobular

2 (8.7)

1 (4.3)

Medullary

0

1 (4.3)

Micropapillary

0

2 (8.7)

Not specified

0

1 (4.3)

Menopausal Status

.291

Premenopausal

4 (18.8)

6 (26.1)

Perimenopausal

0

1 (4.3)

Postmenopausal

18 (81.8)

14 (60.9)

Unknown

1 (4.3)

2 (8.7)