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Migrants from Middle East are slightly more vitamin D deficient than those from Africa - meta-analysis Aug 2015

The prevalence of vitamin D deficiency among dark skinned populations according to their stage of migration and region of birth: a meta-analysis

Nutrition, doi:10.1016/j.nut.2015.07.007
Catherine A. Martin, PhD1, Usha Gowda, MHN1, Andre M.N. Renzaho, PhD1, 2, ,
1 School of Public Health and Preventive Medicine, Monash University, Burnet building, 89 Commercial Road, Victoria 3004, Australia
2 School of Social Sciences and Psychology, University of Western Sydney, Sydney, New South Wales, Australia

•Meta-analysis suggests increased prevalence of VDD in dark-skinned migrants
•VDD is associated with increased time in host country
•VDD is increased in extended Middle East compared to sub-Saharan Africa

Prevalence of Vitamin D deficiency varies among migrants from different geographical regions.

To estimate the pooled prevalence of Vitamin D Deficiency among dark-skinned migrants

A Meta-analysis using meta regression was undertaken to determine the prevalence of vitamin D deficiency in dark-skinned migrant populations. Prevalence was also determined by study characteristics including study methodology, age of populations examined and length of time in migrated country.

A total of 36 studies were identified in non-pregnant populations. The total number of VDD cases across these studies was 9562 out of 13974 total population. Pooled prevalence in dark skinned migrants, adjusted for latitude of study country, was estimated at 77% (95% CI: 70-84%). Examination of studies where migrants from both Sub-Saharan Africa and the extended Middle East were examined (n=7) showed immigrants from the extended Middle East had a higher prevalence of vitamin D deficiency 65% (95% CI: 45-94%)

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Comment by VitaminDWiki
Suspect it may be do with clothing worn by people from the Middle East

See also VitaminDWiki