The sufficient vitamin D and albumin level have a protective effect on COVID-19 infection

Vitamin D study #127 of 131 Meta Analysis

7/30 Analysis of outcomes based on serum levels

Matin et al., Archives of Microbiology, doi:10.1007/s00203-021-02482-5 (Peer Reviewed)
The sufficient vitamin D and albumin level have a protective effect on COVID-19 infection

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Case control study with 191 COVID-19 patients and 203 healthy controls in Iran, showing an association between vitamin D deficiency and COVID-19 infection and severity. 84.4% of COVID-19 patients had vitamin D deficiency.

Matin et al., 7/30/2021, retrospective, case control, Iran, Middle East, peer-reviewed, 8 authors.

risk of COVID-19 case, 66.1% lower, RR 0.34, p < 0.001, >20ng/mL, RR approximated with OR.

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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