. 2022 May 14;20(1):55–62. doi: 10.1111/iwj.13836

TABLE 1.

Search strategy for each database

Database	Search strategy
Pubmed	#1 ‘vitamin D deficiency’ [MeSH Terms] OR ‘diabetic foot ulcer wound’ [MeSH Terms] OR ‘prevalence of vitamin D deficiency’ [All Fields] #2 ‘severe vitamin D deficiency’ [MeSH Terms] OR ‘vitamin D levels’ [All Fields] #3 #1 AND #2
Embase	‘vitamin D deficiency’/exp OR ‘diabetic foot ulcer wound’/exp OR ‘prevalence of vitamin D deficiency’/exp #2 ‘severe vitamin D deficiency’/exp OR ‘vitamin D levels’/exp #3 #1 AND #2
Cochrane library	#1 (vitamin D deficiency):ti,ab,kw OR (diabetic foot ulcer wound):ti,ab,kw OR (prevalence of vitamin D deficiency):ti,ab,kw (Word variations have been searched) #2 (severe vitamin D deficiency):ti,ab,kw OR (vitamin D levels):ti,ab,kw (Word variations have been searched) #3 #1 AND #2

Database

Search strategy

Pubmed

#1 ‘vitamin D deficiency’ [MeSH Terms] OR ‘diabetic foot ulcer wound’ [MeSH Terms] OR ‘prevalence of vitamin D deficiency’ [All Fields]

#2 ‘severe vitamin D deficiency’ [MeSH Terms] OR ‘vitamin D levels’ [All Fields]

#3 #1 AND #2

Embase

‘vitamin D deficiency’/exp OR ‘diabetic foot ulcer wound’/exp OR ‘prevalence of vitamin D deficiency’/exp

#2 ‘severe vitamin D deficiency’/exp OR ‘vitamin D levels’/exp

#3 #1 AND #2

Cochrane library

#1 (vitamin D deficiency):ti,ab,kw OR (diabetic foot ulcer wound):ti,ab,kw OR (prevalence of vitamin D deficiency):ti,ab,kw (Word variations have been searched)

#2 (severe vitamin D deficiency):ti,ab,kw OR (vitamin D levels):ti,ab,kw (Word variations have been searched)

#3 #1 AND #2