Vitamin D at least 30 ng/mL reduced risk for Covid-19 adverse outcomes

Re:Vitamin D at least 30 ng/mL reduced risk for Covid-19 adv... by yokaze on Saturday September 26, 2020 @02:54PM (#24601235)

One should not leave out the important part "pilot study". As said by the authors in the conclusions themselves, it still requires a larger one to give definite answer.

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Re:Vitamin D at least 30 ng/mL reduced risk for Covid-19 adv... by cameldrv on Saturday September 26, 2020 @03:38PM (#24601549)

I agree that a larger N would be preferable, but the effect size was enormous, and so the P value was <.001. Therefore, IMO, it's very likely that Vitamin D has a causal effect. Given that Vitamin D has at least some causal effect, it's much more likely that the observational studies that show a correlation are due to causation.

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