Hip fracture risk in relation to vitamin D supplementation and serum 25-hydroxyvitamin D levels: a systematic review and meta-analysis of randomised controlled trials and observational studies.

BMC Public Health · 2010 · PMC2906464 · PMID 20540727

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marginally statistically significantno p-value reported

One of the cohort studies did attempt to adjust for frailty and physical functioning [ 52 ] and these factors were found to attenuate the association between low serum vitamin D status and hip fracture risk, although it remained marginally statistically significant.

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