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No association between Multiple Sclerosis relapses and being treated with vitamin D–meta-analysis May 2013

This is most likely similar to many other meta-analysis which find no association when averaging the response by people getting no benefit from as little as 400 IU with those getting a lot of benefit from 10,000 IU

Mult Scler May 22, 2013 1352458513489756
Eleanor James, Ruth Dobson, Jens Kuhle, David Baker, Gavin Giovannoni, Sreeram V Ramagopalan
Blizard Institute, Queen Mary University of London, Barts and The London School of Medicine and Dentistry, London, UK
Dr Sreeram V Ramagopalan, Blizard Institute, Queen Mary University of London, Barts and The London School of Medicine and Dentistry, 4 Newark Street, London E1 2AT, UK. Email: s.ramagopalan at qmul.ac.uk

Observational studies have shown an association between lower vitamin D levels and higher risk of relapse among people with multiple sclerosis (MS). This has raised interest in potential clinical benefits of vitamin D supplementation in the management of MS. The objectives were to examine the effect of vitamin D based interventions on the relative risk of relapse in MS. Any randomised controlled trial assessing the effect on the relative risk of relapse of any formulation or dose of vitamin D, in participants with MS, was eligible. The inverse variance with random effects model in Review Manager 5.1 was used to calculate the odds ratio of relapses in high dose vitamin D treated patients vs. controls. Five studies were published as of September 2012, yielding a total of 129 high-dose vitamin D-treated patients and 125 controls. We found no significant association between high-dose vitamin D treatment and risk of MS relapse (OR 0.98, 95% CI 0.45–2.16). In conclusion, although no significant association between high-dose vitamin D treatment and risk of MS relapses was found, the studies were limited by several methodological limitations. Further larger, more prolonged studies are merited.

Received November 24, 2012. Revision received April 11, 2013. Accepted April 12, 2013.


See also VitaminDWiki

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