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WHO Global Database on Vitamin A Deficiency

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General Info
Original or alternative title 
Vitamin and Mineral Nutrition Information System (VMNIS), Vitamin A deficiency data by country
Geography 
Coverage type 
Global
Time period covered 
01/1955 - 12/2007
Data type
Summary 

The WHO Global Database on Vitamin A Deficiency provides estimates of xeropthalmia prevalence and determinations of serum retinol concentrations at the country, regional, and global levels.

Survey reports and publications reporting on vitamin A that were used in the WHO Global Database on Vitamin A Deficiency were collected from: ministries of health through WHO regional offices, national research and academic institutions, nongovernmental organizations, organizations in the UN system, and regular searches of online databases such as PubMed, Medline, Embase, Ovid, and WHO regional databases.