Table 1 Various aspects of family history of breast and ovarian cancer among women born after 1931, diagnosed with first breast cancer cases between 1991 and 1998 (n=17 095)
From: Breast cancer prognosis in relation to family history of breast and ovarian cancer
Number (%) | |
|---|---|
Family history of breast and/or ovarian cancer | |
No | 14 920 (87.2%) |
Yes | 2175 (12.7%) |
Number of FDR a with breast or ovarian cancer | |
One relative | 2090 (12.2 %) |
Two or more | 85 (0.5 %) |
Family history type | |
Breast cancer | 1824 (10.7 %) |
Ovarian cancer | 313 (1.8 %) |
Both | 38 (0.2 %) |
Age at diagnosis in FDR a | |
≥50 years | 1614 (9.4 %) |
<50 years | 561 (3.3 %) |
Sequence of diagnosis in FDRa relative to index case | |
Before | 1883 (11.0 %) |
After | 292 (1.7 %) |
