TABLE 4.

BRCA1/2 mutations frequencies in young women of Caucasians, African American, and Africans.

Study	Mutation frequencies	Sample size (n)	Age limit	Country
Africans
This study	10.0%	40	<35 years old	Rwanda
Francies et al., (2015)	7.7%	78	<50 years old	South Africa (Francies et al., 2015)
Fackenthal et al., (2012)	11.0%	265	<50 years old	Nigeria (Ibadan; Fackenthal et al., 2012)
Tazzite et al., (2012)	12.5%	72	<50 years old	Morocco (Tazzite et al., 2012)
Cherbal et al., (2010)	14.0%	49	≤ 40 years old	Algeria (Cherbal et al., 2010)
Troudi et al., (2007)	18.0%	36	≤ 40 years old	Tunisia (Troudi et al., 2007)
Awadelkarim et al., (2007)	12.0%	34	≤ 40 years old	Sudan (Awadelkarim et al., 2007)
Fackenthal et al., (2005)	2.5%	39	≤ 40 years old	Nigeria (Fackenthal et al., 2005)
Gao et al., (2000)	4.0%	70	≤ 40 years old	Nigeria (Gao et al., 2000)
Caucasians
Copson et al., (2018 )	12.0%	2733	≤ 40 years old	UK (Copson et al., 2018)
de Sanjosé et al., (2003)	11.6%	136	≤ 40 years old	Spain (De Sanjosé et al., 2003)
Tonin et al., (2001)	13.0%	61	≤ 40 years old	Canada (Montreal; Tonin et al., 2001)
African American
Haffty et al. (2009)	14.0%	39	<45 years	USA (New Jersey; Haffty et al., 2009)
John et al. (2007)	17.0%	30	<35 years old	USA (North California; John, et al., 2007)
Malone et al., (2006)	10.3%	80	<45 years	USA (Seattle; Malone et al., 2006)