Retrospective 2,908 hospitalized patients in Mexico with vitamin D levels measured on admission, showing significantly lower mortality for patients without vitamin D deficiency.
risk of death, 31.5% lower, RR 0.68, p < 0.001, high D levels 2,337, low D levels 571, adjusted per study, >12.5ng/mL, 30 day in-hospital mortality.
hospitalization time, 22.2% lower, relative time 0.78, p < 0.001, high D levels 2,337, low D levels 571.
Ramirez-Sandoval et al., 10/15/2021, retrospective, Mexico, North America, peer-reviewed, 7 authors.
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 significance,
however this provides the strongest evidence for the most serious outcomes
when combining the results of many trials.