Vitamin D status among adults (18-65 years old) attending primary healthcare centres in Qatar: a cross-sectional analysis of the Electronic Medical Records for the year 2017.

BMJ Open · 2019 · PMC6701579 · PMID 31427331

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a positive trendno p-value reported

Evidence supporting this finding was published in a study among UAE adults showing a positive trend for serum vitamin D level with advancing age. 16 Other studies supported the association between lower serum vitamin D concentration and younger age. 17 25 26 The explanation for this observation is the use of vitamin D supplementation for elderly people, especially women, who are getting used to taking multivitamin tablets.

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