From: The prevalence of estrogen receptor-negative breast cancer in Ethiopia
Total (n) | Year of specimen collection | % of negative estrogen receptor status | |
---|---|---|---|
East Africa | |||
Kenia [1] | 120 | 2001–2007 | 76 |
Tanzania [2] | 60 | 1995–1997 | 67 |
Uganda [3] | 65 | 1993–2002 | 65 |
West Africa | |||
Nigeria/Senegal [4] | 507 | 2004–2005 | 76 |
Ghana [5] | 75 | 2007–2008 | 76 |
Ghana [6] | 100 | 2006–2011 | 75 |
Ghana [10] | 51 | 2007-2010 | 76 |
Mali [8] | 114 | 2008–2011 | 61 |
Uganda [11] | 45 | 2000-2004 | 60 |
Ghana [7] | 68 | 2004–2009 | 53 |
Nigeria [9] | 133 | 1996–2007 | 35 |
Southern Africa | |||
South African black population [12] | 957 | 2006–2012 | 37 |