Vitamin D supplementation and mortality among critically ill adults: a systematic review and meta-analysis (opens in new tab)

BackgroundRandomized controlled trials have failed to demonstrate the effects of vitamin D supplementation on reducing the mortality rate in critically ill adults. A post hoc study revealed that vitamin D administration was linked to a lower 28-day mortality rate. The purpose of this meta-analysis was to investigate how vitamin D supplementation affects mortality in critically ill adults. The effects of vitamin D supplementation, such as baseline 25-hydroxyvitamin D level, vitamin D supplemen...