Vitamin and Mineral Nutrition Information System (VMNIS)

Anaemia prevalence and number of individuals affected in preschool-age children, pregnant women, and non-pregnant women in each WHO region

WHO regional estimates generated for preschool-age children and pregnant and non-pregnant women indicate that the highest proportion of individuals affected are in Africa (47.5–67.6%), while the greatest number affected are in South-East Asia where 315 million (95% CI: 291–340) individuals in these three population groups are affected.


WHO region Preschool-age childrena Pregnant women Non-pregnant women
Prevalence (%) # affected
(millions)
Prevalence (%) # affected (millions) Prevalence (%) # affected (millions)
Africa 67.6
(64.3-71.0)b
83.5
(79.4-87.6)
57.1
(52.8-61.3)
17.2
(15.9-18.5)
47.5 (43.4-51.6) 69.9
(63.9-75.9)
Americas 29.3
(26.8-31.9)
23.1
(21.1-25.1)
24.1
(17.3-30.8)
3.9
(2.8-5.0)
17.8
(12.9-22.7)
39
(28.3-49.7)
South-East Asia 65.5
(61.0-70.0)
115.3
(107.3-123.2)
48.2
(43.9-52.5)
18.1
(16.4-19.7)
45.7
(41.9-49.4)
182
(166.9-197.1)
Europe 21.7
(15.4-28.0)
11.1
(7.9-14.4)
25.1
(18.6-31.6)
2.6
(2.0-3.3)
19
(14.7-23.3)
40.8
(31.5-50.1)
Eastern Mediterranean 46.7
(42.2-51.2)
0.8
(0.4-1.1)
44.2
(38.2-50.3)
7.1
(6.1-8.0)
32.4
(29.2-35.6)
39.8
(35.8-43.8)
Western Pacific 23.1
(21.9-24.4)
27.4
(25.9-28.9)
30.7
(28.8-32.7)
7.6
(7.1-8.1)
21.5
(20.8-22.2)
97
(94.0-100.0)
Global 47.4
(45.7-49.1)
293.1
(282.8-303.5)
41.8
(39.9-43.8)
56.4
(53.8-59.1)
30.2
(28.7-31.6)
468.4
(446.2-490.6)

a Population subgroups: Preschool-age children (0.00-4.99 yrs); Pregnant women (no age range defined); Non-pregnant women (15.00-49.99 yrs).

b 95% Confidence Intervals.

Source

de Benoist B et al., eds. Worldwide prevalence of anaemia 1993-2005. WHO Global Database on Anaemia Geneva, World Health Organization, 2008.

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