Table 1.
Clinicopathologic characteristics
| Overall N = 258 |
KTB n = 86 |
BBD controls n = 86 |
BBD cases n = 86 |
|
|---|---|---|---|---|
| Age | ||||
| <45 | 48 (18.6%) | 16 (18.6%) | 16 (18.6%) | 16 (18.6%) |
| 45–55 | 96 (37.2%) | 35 (40.7%) | 30 (34.9%) | 31 (36.0%) |
| >55 | 114 (44.2%) | 35 (40.7%) | 40 (46.5%) | 39 (45.3%) |
| BMI | ||||
| Not available | 8 | 0 | 5 | 3 |
| <25 | 86 (34.4%) | 24 (27.9%) | 32 (39.5%) | 30 (36.1%) |
| 25–29 | 88 (35.2%) | 30 (34.9%) | 25 (30.9%) | 33 (39.8%) |
| ≥30 | 76 (30.4%) | 32 (37.2%) | 24 (29.6%) | 20 (24.1%) |
| Lobular involution | ||||
| Not available | 12 | 3 | 1 | 8 |
| None | 36 (14.6%) | 4 (4.8%) | 12 (14.1%) | 20 (25.6%) |
| Partial | 114 (46.3%) | 35 (42.2%) | 37 (43.5%) | 42 (53.8%) |
| Complete | 96 (39.0%) | 44 (53.0%) | 36 (42.4%) | 16 (20.5%) |
| Histologic impression | ||||
| Not available | 2 | 2 | 0 | 0 |
| No histologic abnormality | 54 (21.1%) | 54 (64.3%) | 0 | 0 |
| Nonproliferative disease | 79 (30.9%) | 22 (26.2%) | 34 (39.5%) | 23 (26.7%) |
| Proliferative disease without atypia | 87 (34.0%) | 7 (8.3%) | 38 (44.2%) | 42 (48.8%) |
| Atypia | 36 (14.1%) | 1 (1.2%) | 14 (16.3%) | 21 (24.4%) |