RCT of 30 ventilated ICU patients showing lower mortality with vitamin D treatment, RR 0.36, p
= 0.004. Authors do not indicate why the patients were hospitalized or if any of the patients were COVID-19 patients. 300,000 IU intramuscular vitamin D was used.
Sistanizad et al., 12/26/2020, Randomized Controlled Trial, Iran, Middle East, peer-reviewed, 8 authors, dosage 300,000IU single dose, intramuscular.
risk of death, 63.5% lower, RR 0.36, p = 0.004, treatment 5 of 16 (31.2%), control 12 of 14 (85.7%).
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.