Distribution of BRCA1/2 status according to immunohistochemical characteristics and familial history.

WT, wild type; UV, unclassifed variant; MUT, mutated; FH, cancer family history; HR, hormonal receptor tumor; TN, triple negative; NTN, non-triple negative; (+), positive; (−), negative; p, Pearson chi-square.(*) Statistically significant with a 95% confidence interval; for familial history distribution the 54 unrelated young patients were considered; for distribution of HR, TN/NTN and HER2 status the 55 young patients (54 unrelated and one sister) were considered.