Alguwaihes et al., Cardiovascular Diabetology,
doi:10.1186/s12933-020-01184-4 (Peer Reviewed)
Diabetes and Covid-19 among hospitalized patients in Saudi Arabia: a single-centre retrospective study
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.