Countries, DHS years and sample sizes
| Country | DHS years used | Sample size |
| Western Africa | ||
| Benin | 2001, 2006, 2011 | 36 628 |
| Burkina Faso | 1998, 2003, 2010 | 29 642 |
| Cote d’Ivoire | 1998, 2011 | 11 990 |
| Gambia | 2013 | 9979 |
| Ghana | 2003 | 4469 |
| Guinea | 1999, 2005, 2012 | 20 083 |
| Mali | 1995, 2001, 2006, 2012 | 38 464 |
| Niger | 1998, 2006, 2012 | 24 224 |
| Nigeria* | 2008, 2013 | 66 863 |
| Senegal | 2005, 2010, 2014, 2015 | 44 856 |
| Sierra Leone | 2008, 2013 | 22 251 |
| Togo | 2013 | 9002 |
| Eastern Africa | ||
| Ethiopia | 2000, 2005 | 22 271 |
| Kenya | 1998, 2003, 2008, 2014 | 33 313 |
| Tanzania | 1996, 2004, 2009, 2015 | 36 602 |
| Uganda | 2006, 2011 | 14 989 |
| Central and Southern Africa | ||
| Cameroon | 2004 | 4422 |
| Central African Republic | 1994 | 3432 |
| Chad | 2004, 2014 | 16 542 |
| Swaziland | 2006 | 4330 |
| Middle East | ||
| Egypt | 1995, 2000, 2005, 2008, 2014 | 64 396 |
| Yemen | 2013 | 23 953 |
*Nigeria also collected data on FGM in the 2003 DHS, but the distribution of the sample in that year differs from that in more recent surveys, leading to significantly different estimates of the prevalence of FGM.14 We used the two most recent surveys.
DHS, Demographic and Health Surveys; FGM, female genital mutilation.