Patient Characteristics

Overall

(n = 395)

Caucasian

(n = 307)

African

American

(n = 39)

Hispanic

(n = 10)

Asian-Pacific Islander

(n = 24)

Unknown/

Others

(n = 15)

p value*

Median age (yr)

56

56

58

51

55

54

0.694

Family history

0.362

1st degree relative

with breast cancer

56 (14.2%)

49 (15.9%)

0 (0.0%)

2 (20.0%)

3 (12.5%)

2 (13.3%)

BRCA 1 positive

6 (1.5%)

5 (1.6%)

0 (0.0%)

0 (0.0%)

1 (4.2%)

0 (0.0%)

BRCA 2 positive

6 (1.5%)

4 (1.3%)

1 (2.6%)

0 (0.0%)

0 (0.0%)

1 (6.7%)

Mode of detection:

0.402

Microcalcification

on MMG

255 (64.6%)

191 (62.2%)

30 (76.9%)

7 (70.0%)

18 (75.0%)

9 (60.0%)

Palpable mass

36 (9.1%)

27 (8.8%)

5 (12.8%)

1 (10.0%)

1 (4.2%)

2 (13.3%)

Information not

available

104 (26.3%)

89 (29.0%)

4 (10.3%)

2 (20.0%)

5 (20.8%)

4 (26.7%)

Surgical treatment

0.005

Lumpectomy with

SLNB

84 (21.2%)

55 (17.9%)

11 (28.2%)

4 (40.0%)

6 (25.0%)

8 (53.3%)

Simple mastectomy

with SLNB

311 (78.7%)

252 (82.1%)

28 (71.8%)

6 (60.0%)

18 (75.0%)

7 (46.6%)