9/19 Analysis of outcomes based on serum levels
et al., Food Science & Nutrition, doi:10.1002/fsn3.2591 (Peer Reviewed)
The predictive power of serum vitamin D for poor outcomes in COVID-19 patients
The predictive power of serum vitamin D for poor outcomes in COVID-19 patients
Retrospective 290 hospitalized patients in Iran, showing higher mortality with vitamin D deficiency.
Derakhshanian et al., 9/19/2021, retrospective, Iran, Middle East, peer-reviewed, 11 authors.
risk of death, 44.8% lower, RR 0.55, p = 0.05, high D levels 148, low D levels 142, odds ratio converted to relative risk, control prevalance approximated with overall prevalence.
risk of mechanical ventilation, 41.7% lower, RR 0.58, p = 0.09, high D levels 148, low D levels 142, odds ratio converted to relative risk, control prevalance approximated with overall prevalence.
risk of ICU admission, 37.3% lower, RR 0.63, p = 0.04, high D levels 148, low D levels 142, odds ratio converted to relative risk, control prevalance approximated with overall prevalence.
Effect extraction follows pre-specified rules
prioritizing more serious outcomes. For an individual study the most serious
outcome may have a smaller number of events and lower statistical signficance,
however this provides the strongest evidence for the most serious outcomes
when combining the results of many trials.
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