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. 2021 Jul 8;76:e2837. doi: 10.6061/clinics/2021/e2837

Table 1. Clinical and pathological features of breast cancer patients according to deleterious BRCA1 and BRCA2 mutations.

Features BRCA1/BRCA2 mut BRCA1/BRCA2 wt
n=49 n=5 n=44
Age at diagnosis, median (range), years 61 (55-80) 58 (56-80) 62 (55-80)
Age at enrollment, median (range), years 64 (56-87) 60 (58-82) 64.5 (56-87)
Histological grade, n (%)
    I 10 0 10 (100)
    II 31 2 (6.5) 29 (93.5)
    III 7 3 (42.8) 4 (57.8)
    Missing 1 0 1 (100)
Clinical Stage, n (%)
    I 14 0 14 (100)
    II 19 1 (5.3) 18 (94.7)
    III 10 2 (20) 8 (80)
    Missing 6 2 (33.5) 4 (66.5)
Molecular Subtype
    Luminal A 11 0 11 (100)
    Luminal B 22 3 (13.7) 19 (86.4)
    Luminal 6 0 6 (100)
    HER2+ 5 0 5 (100)
    Triple Negative 5 2 (40) 3 (60)
Affected relatives, n (%)
    First Degree 34 4 (11.8) 30 (82.2)
    Second Degree 9 0 9 (100)
    Third Degree 4 1 (25) 3 (75)
    Negative 2 0 2 (100)
Ancestry until second degree, n (%)
    Brazilian only 13 2 (15.4) 11 (84.6)
    European only 9 0 9 (100)
    Asian only 5 1 (20) 4 (80)
    Brazilian and European 14 1 (7.2) 13 (92.8)
    Brazilian and Indigenous 1 0 1 (100)
    Brazilian and Australian 1 1 (100) 0
    Brazilian and South American 1 0 1 (100)
    Brazilian and European and Australian 1 0 1 (100)
    Indigenous and European 1 0 1 (100)
    European and Unknown 1 0 1 (100)
    Indigenous and Unknown 1 0 1 (100)
    Unknown 1 0 1 (100)
Region of origin, n (%)
    Southeast 33 2 (6) 31 (94)
    Northeast 9 2 (22.2) 7 (77.8)
    South 3 0 3 (100)
    Abroad 4 1 (25) 3 (75)