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Diabetics with darker skin were more vitamin D deficient – May 2012

Serum Vitamin D Insufficiency and Diabetes Status in Three Ethnic Minority Groups.

J Immigr Minor Health. 2012 May 16.
Shaban LH, Zarini GG, Exebio JC, Sukhram SD, Huffman FG.
Department of Dietetics and Nutrition, Florida International University, 11200 SW, 8th ST, AHC-1 430, Miami, FL, 33199, USA.

The purpose of this study was to investigate the association between 25-hydroxyvitamin D [25(OH)D] levels and diabetes status in three ethnicities. This cross sectional study included Cuban Americans (n = 199), Haitian Americans (n = 253) and African Americans (n = 248) with and without type 2 diabetes (T2D) from Florida, U.S. Recruitment of participants was through mailing lists (Cuban Americans and African Americans) and community based sources (Haitian Americans).

Adjusted logistic regression analysis indicated significant differences in the odds of having insufficient 25(OH)D levels by ethnicity [P < 0.001], diabetes status [P < 0.001], and their interaction [P < 0.001]. Holm's modified Bonferroni method showed that only Cuban Americans without T2D had significantly lower odds of having insufficient 25(OH)D compared to all other groups. Haitian American and African American participants and participants having T2D had the greatest risk of 25(OH)D insufficiency. Future studies should focus on the role of vitamin D supplementation and diabetes outcomes across ethnic groups.

PMID: 22588624
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See also VitaminDWiki