Table 1.

Summary of search results for the PubMed, Google Scholar and other databases to assess the prevalence of vitamin D deficiency among under five children in Sub-Saharan Africa.

Databases	Searching terms	Number of studies
Google scholar	All in title: vitamin D OR ergocalciferols AND Children	852
PubMed	Search ((("vitamin d"[MeSH Terms] OR "ergocalciferols"[MeSH Terms] OR vitamin D[Text Word])) AND ("child"[MeSH Terms] OR CHILDREN[Text Word])) AND "Africa South of the Sahara"[Mesh]	331
Web of science, CINAHL and global health	“prevalence” or “magnitude” and “Vitamin D” and “Deficiency” or “level” and “children” or “Child” or “ergocalciferols” and “sub-Saharan Africa”	29
Total retrieved articles		1212
Full text available papers appropriate to our review		10