Table 3 Other factors associated with bilateral mastectomy during index surgery
Unilateral or partial mastectomy | Bilateral mastectomy | p-value | |
|---|---|---|---|
Age | |||
≤ 50 (n = 151) | 70 (46.4%) | 81 (53.6%) | <0.05 |
> 50 (n = 69) | 43 (62.3%) | 26 (37.7%) | <0.05 |
Race | |||
Caucasian (n = 189) | 98 (51.9%) | 91 (48.1%) | NS |
African American (n = 14) | 4 (28.6%) | 10 (71.4%) | NS |
Other (n = 3) | 1 (33.3%) | 2 (66.7%) | NS |
Unknown (n = 14) | 10 (71.4%) | 4 (28.6%) | NS |
Laterality | |||
Unilateral (n = 208) | 112 (53.8%) | 96 (46.2%) | <0.05 |
Bilateral (n = 12) | 1 (8.3%) | 11 (91.7%) | <0.05 |
Histology | |||
DCIS (n = 24) | 13 (54.2%) | 11 (45.8%) | NS |
IDC (n = 181) | 91 (50.3%) | 90 (49.7%) | NS |
ILC (n = 13) | 9 (69.2%) | 4 (30.8%) | NS |
Other (n = 2) | 0 (0.0%) | 2 (100%) | NS |
Grade | |||
Grade 1 (n = 13) | 7 (53.8%) | 6 (46.2%) | NS |
Grade 2 (n = 58) | 29 (50.0%) | 29 (50.0%) | NS |
Grade 3 (n = 140) | 71 (50.7%) | 69 (49.3%) | NS |
Unknown (n = 9) | 6 (66.7%) | 3 (33.3%) | NS |
Triple negative breast cancer | |||
Yes (n = 80) | 34 (42.5%) | 46 (57.5%) | <0.05 |
No (n = 92) | 43 (46.7%) | 49 (53.3%) | NS |
Unknown (n = 48) | 36 (75.0%) | 12 (25.0%) | <0.05 |
Overall TNM Stage | |||
In-situ (n = 24) | 13 (54.2%) | 11 (45.8%) | NS |
Stage I (n = 79) | 50 (63.3%) | 29 (36.7%) | <0.05 |
Stage II (n = 83) | 39 (47.0%) | 44 (53.0%) | NS |
Stage III (n = 34) | 11 (32.4%) | 23 (67.6%) | <0.05 |