Retrospective 439 diabetic hospitalized patients in Saudi Arabia showing lower mortality with vitamin D >12.5 nmol/L, adjusted hazard ratio aHR 0.14,
p = 0.007.
Alguwaihes et al., 12/5/2020, retrospective, Saudi Arabia, Middle East, peer-reviewed, 10 authors.
risk of death, 85.7% lower, RR 0.14, p = 0.007, high D levels 111, low D levels 328, >12.5 nmol/L.
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.