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Table 1 Predicted probabilities of a BRCA1 mutation based on age and tumor characteristics [17]

From: Breast cancer in young women

Age (years) All histologies (%) ER-negative and high grade tumors (%)
< 30 8 35
31-34 5 26.5
35-39 2 6.6
40-44 1.5 3.7
45-49 1 2.5
50-59 0.3 0.9
  1. ER, estrogen receptor