BRCA1 and breast cancer: Factors that statistically significantly associated with carrying BRCA1 pathogenic variants included a family history of breast cancer (P = 0.001) and hormone receptor-negative tumors (P = 0.0004) including triple-negative diseases (P = 0.01), while the only factor that was statistically significantly associated with carrying BRCA2 pathogenic variants was a family history of breast cancer (P = 0.0002).