Table 4 Case-control analysis

Menopausal status

Premenopausal

12 (57.1)

40 (64.5)

0.7

Postmenopausal

9 (42.9)

22 (35.5)

Grade

0.5

1

3 (14.3)

8 (12.7)

2

11 (52.4)

24 (38.1)

3

5 (23.8)

26 (41.3)

Unknown

2 (9.5)

5 (7.9)

LVI

0.8

Present

7 (33.3)

16 (25.4)

Absent

11 (52.4)

37 (58.7)

Unknown

3 (14.3)

10 (15.9)

Surgery

Mastectomy

18 (86)

20 (32)

0.001

Lumpectomy

3 (14)

43 (68)

Adjuvant RT

Yes

4 (19.0)

49 (78)

< 0.001

No

16 (76.2)

14 (22)

Unknown

1 (4.8)

Adjuvant anthracyclines

Yes

2 (9.5)

30 (47.6)

0.003

No

18 (85.7)

31 (49.2)

Unknown

1 (4.8)

2 (3.2)