Expressed as relative risk, vitamin D reduced the risk of ICU admission 25-fold. Put another way, it eliminated 96% of the risk of ICU admission. Expressed as an odds ratio, which is a less intuitive concept but is often used in statistics because it gives an estimate of the effect of the treatment that would be constant across scenarios with different levels of risk, vitamin D reduced the odds of ICU admission by 98%. Either way, vitamin D practically abolished the need for ICU admission.
Would be great if this replicates in a bigger study. In the meantime, supplementing Vitamin D is cheap & safe.
Though perhaps the effect size they found is implausibly large...
Would be great if this replicates in a bigger study. In the meantime, supplementing Vitamin D is cheap & safe.
More Vitamin D discussion:
LessWrong post on Vitamin D supplementation (pre-covid)
SSC post on the Vitamin D literature (from 2014)
Gwern’s comment on that SSC post