Please note, due to essential maintenance online transactions will not be possible between 02:30 and 04:00 BST, on Tuesday 17th September 2019 (22:30-00:00 EDT, 17 Sep, 2019). We apologise for any inconvenience.
To send content items to your account,
please confirm that you agree to abide by our usage policies.
If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account.
Find out more about sending content to .
To send content items to your Kindle, first ensure firstname.lastname@example.org
is added to your Approved Personal Document E-mail List under your Personal Document Settings
on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part
of your Kindle email address below.
Find out more about sending to your Kindle.
Note you can select to send to either the @free.kindle.com or @kindle.com variations.
‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi.
‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.
To provide current global and regional estimates of anaemia prevalence and number of persons affected in the total population and by population subgroup.
Setting and design
We used anaemia prevalence data from the WHO Vitamin and Mineral Nutrition Information System for 1993–2005 to generate anaemia prevalence estimates for countries with data representative at the national level or at the first administrative level that is below the national level. For countries without eligible data, we employed regression-based estimates, which used the UN Human Development Index (HDI) and other health indicators. We combined country estimates, weighted by their population, to estimate anaemia prevalence at the global level, by UN Regions and by category of human development.
Survey data covered 48·8 % of the global population, 76·1 % of preschool-aged children, 69·0 % of pregnant women and 73·5 % of non-pregnant women. The estimated global anaemia prevalence is 24·8 % (95 % CI 22·9, 26·7 %), affecting 1·62 billion people (95 % CI 1·50, 1·74 billion). Estimated anaemia prevalence is 47·4 % (95 % CI 45·7, 49·1 %) in preschool-aged children, 41·8 % (95 % CI 39·9, 43·8 %) in pregnant women and 30·2 % (95 % CI 28·7, 31·6 %) in non-pregnant women. In numbers, 293 million (95 % CI 282, 303 million) preschool-aged children, 56 million (95 % CI 54, 59 million) pregnant women and 468 million (95 % CI 446, 491 million) non-pregnant women are affected.
Anaemia affects one-quarter of the world’s population and is concentrated in preschool-aged children and women, making it a global public health problem. Data on relative contributions of causal factors are lacking, however, which makes it difficult to effectively address the problem.
Email your librarian or administrator to recommend adding this to your organisation's collection.