Vitamin D deficiency is associated with worse neurological outcomes in moderate and severe traumatic brain injury: A prospective observational cohort study.

[ 39 , 40 ] However, other studies in general critical care populations, [ 33 , 41 , 42 ] as well as our adjusted TBI-specific analysis, found no statistically significant association between lower vitamin D levels and nosocomial infection, though our data showed a marginal trend ( P = .077).

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