The number of study participants by country and region with prevalence and survey years
| Sub-Saharan region | Country | Weighted sample size (n=208 415) | Prevalence of childhood illness (%) | Study year |
| East Africa | Burundi | 11 541 | 54.07 | 2016/2017 |
| Comoros | 561 | 79.91 | 2012 | |
| Ethiopia | 9217 | 25.94 | 2016 | |
| Kenya | 6808 | 71.63 | 2014 | |
| Malawi | 14 874 | 44.55 | 2015/2016 | |
| Mozambique | 1405 | 78.95 | 2015 | |
| Rwanda | 7229 | 30.03 | 2019/2020 | |
| Tanzania | 8499 | 27.74 | 2015/2016 | |
| Uganda | 13 013 | 47.76 | 2016 | |
| Zambia | 8325 | 27.27 | 2018 | |
| Zimbabwe | 5429 | 31.70 | 2015 | |
| Southern Africa | Lesotho | 834 | 59.83 | 2014 |
| Namibia | 1376 | 78.01 | 2013 | |
| South Africa | 3080 | 29.49 | 2016 | |
| West Africa | Burkina Faso | 1425 | 82.74 | 2010 |
| Benin | 11 262 | 28.38 | 2017/2018 | |
| Côte d’Ivoire | 1463 | 80.11 | 2011/2012 | |
| Ghana | 751 | 72.07 | 2014 | |
| Gambia | 6386 | 31.95 | 2019/2020 | |
| Guinea | 6259 | 29.50 | 2018 | |
| Mali | 8443 | 29.12 | 2018 | |
| Nigeria | 27 611 | 32.98 | 2018 | |
| Niger | 1741 | 78.60 | 2012 | |
| Sierra Leone | 7880 | 23.26 | 2019 | |
| Senegal | 4835 | 25.58 | 2019 | |
| Togo | 1732 | 74.80 | 2013/2014 | |
| Liberia | 4296 | 36.44 | 2019/2020 | |
| Central Africa | Angola | 11 165 | 27.30 | 2015/2016 |
| Democratic Republic of the Congo | 5264 | 76.41 | 2013/2014 | |
| Congo | 2129 | 75.28 | 2011/2012 | |
| Cameroon | 8388 | 26.57 | 2018 | |
| Gabon | 1889 | 69.19 | 2012 | |
| Chad | 3289 | 87.24 | 2014/2015 |