Table 2 Characteristics of the breast cancer-free female cohort.
Demographics and clinical characteristics | Breast cancer-free female cohort, N = 36,146 (% or ± SD) |
|---|---|
Age (years) | 51.09 ± 15.35 |
Age at menarche (years) | 12.82 ± 1.51 |
Age at first live birth (nulliparous excluded, years) | 24.10 ± 5.03 |
Parity (nulliparous excluded) | 1.92 ± 1.32 |
Age at menopause (premenopausal women excluded, years) | 47.94 ± 6.68 |
Ashkenazi Jewish ancestry | 239 (0.66%) |
Ethnicity (Black) | 828 (2.29%) |
BRCA1 or BRCA2 germline pathogenic variants | 115 (462 tested) |
Cancer diagnosis (all types) | 2 617 (7.24%) |
Age at cancer onset (years) | 57.44 ± 15.96 |
Colorectal cancer | 574 (1.59%) |
Age at colorectal cancer onset (years) | 61.63 ± 17.19 |
Lung/bronchus cancer | 153 (0.42%) |
Age at lung/bronchus cancer onset (years) | 62.01 ± 26.18 |
Pancreatic cancer | 136 (0.38%) |
Age at pancreatic cancer onset (years) | 66.85 ± 22.94 |
Ovarian cancer | 508 (1.40%) |
Age at ovarian cancer onset (years) | 55.96 ± 22.84 |
