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PLoS One ; 10(1): e0115850, 2015.
Article in English | MEDLINE | ID: mdl-25602255

ABSTRACT

BACKGROUND: The effects of intermittent, high dose vitamin D treatment in older adults have not been documented. We conducted a meta-analysis to provide a quantitative assessment of the efficiency of intermittent, high dose vitamin D treatment on falls, fractures, and mortality among older adults. METHODS: Electronic databases were searched for randomized controlled trials (RCTs) on high dose, intermittent vitamin D supplementation among older adults. Two researchers independently screened the literature according to specified inclusive and exclusive criteria to extract the data. Meta-analysis was performed by using Review Manager 5.1.0 software. RESULTS: Nine trials were included in this meta-analysis. High dose, intermittent vitamin D therapy did not decrease all-cause mortality among older adults. The risk ratio (95% CI) was 1.04 (0.91-1.17). No benefit was seen in fracture or fall prevention. The risk ratio for hip fractures (95% CI) was 1.17 (0.97-1.41) while for non-vertebral fractures (95% CI) it was 1.06 (0.91-1.22), and the risk ratio for falls (95% CI) was 1.02 (0.96-1.08). Results remained robust after sensitivity analysis. CONCLUSION: Supplementation of intermittent, high dose vitamin D may not be effective in preventing overall mortality, fractures, or falls among older adults. The route of administration of vitamin D supplements may well change the physiological effects.


Subject(s)
Dietary Supplements , Fractures, Bone/epidemiology , Vitamin D/administration & dosage , Accidental Falls/prevention & control , Aged , Aged, 80 and over , Female , Fractures, Bone/drug therapy , Fractures, Bone/etiology , Humans , Male , Mortality , Odds Ratio , Publication Bias , Qualitative Research
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