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. 2016 Oct 12;7(49):80465–80481. doi: 10.18632/oncotarget.12610

Table 4. Summary of Brazilian BRCA1 and/or BRCA2 studies.

Sample size % of BRCA1 /BRCA2 mutations Selection criteria Genetic test performed Authors, year
47 7 (14.9%) HBOC patients All coding regions of BRCA1 Lourenço, 2004
31 4 (9.6%) HBOC patients BRCA1 exons 2, 3, 5, 11 and 20 and BRCA2 exons 10 and 11 Dufloth, 2005
402 9 (2.3%) BC, irrespective to age or family history Four common alterations in BRCA1 and BRCA2 (185delAG, 5382insC and exon 13 6kb duplication in BRCA1 and 6174delT in BRCA2 Gomes, 2007
612 21 (3.4%) HBOC patients BRCA1 exon 11 and BRCA2 exons 10 and 11 and specific founder mutations Esteves, 2009
137 7 (5%) non-Ashkenazyi HBOC patients BRCA1 exon 2 (c.68_69del mutation), exon 20 (c.5266dup mutation) and BRCA2 exon 11 (c.5946del mutation). Ewald, 2011
255 3 (1.2%) Askenazi-jews unselected for family history of cancer BRCA1 185delAG, BRCA1 5382insC and BRCA2 6174delT Dillenburg, 2012
54 11 (20.4%) BC <35years, irrespective to family history All coding regions of BRCA1 and BRCA2 Carraro, 2013
106 9 (8.5%) HBOC patients All coding regions of BRCA1 and common founder mutations in the BRCA2 Felix, 2014
120 27 (22.5%) HBOC patients BRCA1/BRCA2 point mutations and rearrangements Silva, 2014
616 0 (0%) 513 cancer-free patients and 103 OC patients BRCA1 (c.68_69delAG, c.5266dupC, c.181T>G, c.4034delA, c.5123C>A) and BRCA2 (c.5946delT, c.8537_8538delAG, 4936_4939delGAAA, c.156_157insAlu) Schayek,2015
349 75 (21.5%) HBOC patients All coding regions of BRCA1 and BRCA2 Present study