The prevalence of mild, moderate and severe anaemia (along with normal haemoglobin) across the 33 countries studied
| Country | Year of survey | Severe anaemia (%) | Mild anaemia (%) | Moderate anaemia (%) | No anaemia (%) |
| Angola | 2015–2016 | 2.12 | 30.00 | 32.00 | 35.88 |
| Burkina Faso | 2021 | 10.91 | 18.47 | 58.94 | 11.68 |
| Benin | 2017–2018 | 3.39 | 27.76 | 40.57 | 28.28 |
| Burundi | 2016–2017 | 3.29 | 24.59 | 30.99 | 41.13 |
| Congo Dr | 2013–2014 | 3.74 | 24.72 | 34.53 | 37.01 |
| Congo | 2011–2012 | 1.24 | 31.49 | 33.48 | 33.79 |
| Cote d'ivoire | 2021 | 3.53 | 24.95 | 46.92 | 24.60 |
| Cameroon | 2018 | 2.01 | 25.50 | 29.92 | 42.57 |
| Ethiopia | 2016 | 4.00 | 23.79 | 32.58 | 39.63 |
| Gabon | 2019–2021 | 1.77 | 29.40 | 32.47 | 36.36 |
| Ghana | 2014 | 2.98 | 27.30 | 39.49 | 30.23 |
| Gambia | 2019–2020 | 1.83 | 24.70 | 26.70 | 46.77 |
| Guinea | 2018 | 2.10 | 29.50 | 42.00 | 26.40 |
| Liberia | 2019–2020 | 2.40 | 28.10 | 40.10 | 29.40 |
| Lesotho | 2014 | 1.74 | 25.08 | 26.20 | 46.98 |
| Madagascar | 2021 | 0.55 | 26.26 | 20.77 | 52.42 |
| Mali | 2018 | 5.14 | 24.52 | 50.41 | 19.93 |
| Mauritania | 2019–2021 | 8.40 | 20.01 | 46.08 | 25.51 |
| Malawi | 2015–2016 | 1.75 | 26.88 | 34.00 | 37.07 |
| Mozambique | 2011 | 3.37 | 26.24 | 36.67 | 33.72 |
| Nigeria | 2018 | 3.16 | 27.26 | 38.57 | 31.36 |
| Niger | 2012 | 2.82 | 26.58 | 45.06 | 25.44 |
| Namibia | 2013 | 0.98 | 24.60 | 25.00 | 49.42 |
| Rwanda | 2019–2020 | 0.29 | 21.30 | 14.90 | 63.51 |
| Sierra Leone | 2019 | 3.16 | 30.51 | 36.27 | 30.06 |
| Sao tome and Principe | 2008–2009 | 1.04 | 31.10 | 27.06 | 40.80 |
| Swaziland | 2009 | 1.10 | 22.94 | 20.99 | 54.97 |
| Togo | 2013–2014 | 2.63 | 25.90 | 42.34 | 29.13 |
| Tanzania | 2022 | 1.53 | 27.25 | 29.70 | 41.52 |
| Uganda | 2016 | 2.28 | 24.44 | 27.84 | 45.54 |
| South Africa | 2016 | 2.75 | 25.99 | 32.89 | 38.37 |
| Zambia | 2018 | 1.43 | 28.54 | 28.00 | 42.03 |
| Zimbabwe | 2015 | 0.51 | 22.21 | 15.50 | 61.78 |