Table 1.
Variables | Total (N=475) | % | BCD* (N=403) | % | HRBCC† (N=72) | % |
---|---|---|---|---|---|---|
Age (years) | median 52 (22–87) | median 53 (22–87) | median 51 (24–77) | |||
Body mass index (kg/m2) | ||||||
Underweight + Normal (<25) | 253 | 53 | 204 | 51 | 49 | 68 |
Overweight + Obese (≥25) | 222 | 47 | 199 | 49 | 23 | 32 |
Family history of breast cancer | ||||||
No | 274 | 58 | 248 | 62 | 26 | 36 |
Yes | 201 | 42 | 155 | 38 | 46 | 64 |
History of atypical hyperplasia | ||||||
No | 433 | 91 | 387 | 96 | 46 | 64 |
Yes | 42 | 9 | 16 | 4 | 26 | 36 |
History of lobular carcinoma in situ | ||||||
No | 451 | 95 | 394 | 98 | 57 | 79 |
Yes | 24 | 5 | 9 | 2 | 15 | 21 |
Mammographic breast density | ||||||
Entirely Fatty | 32 | 7 | 29 | 7 | 3 | 4 |
Scattered Fibroglandular Tissue | 137 | 29 | 120 | 30 | 17 | 24 |
Heterogeneously Dense | 223 | 47 | 196 | 49 | 27 | 37 |
Extremely Dense | 83 | 17 | 58 | 14 | 25 | 35 |
Background parenchymal enhancement | ||||||
Minimal | 73 | 15 | 50 | 12 | 23 | 32 |
Mild | 210 | 44 | 193 | 48 | 17 | 24 |
Moderate | 128 | 27 | 107 | 27 | 21 | 29 |
Marked | 64 | 14 | 53 | 13 | 11 | 15 |
Fibroglandular tissue | ||||||
Entirely Fatty | 108 | 23 | 94 | 23 | 14 | 19 |
Scattered Fibroglandular Tissue | 141 | 30 | 129 | 32 | 12 | 17 |
Heterogeneously Dense | 133 | 28 | 106 | 26 | 27 | 38 |
Extremely Dense | 93 | 19 | 74 | 19 | 19 | 26 |
Breast Cancer Database
High Risk Breast Cancer Consortium