claim: mathematical analysis of córdoba calcifediol trial suggests strong role against vitamin d in reducing icu admissions of hospitalized covid-19 patients
evidence_1: ]: dot [@]: at [mhra]: medicines and healthcare products regulatory agency [jcvi]: joint committee for vaccination and immunisation [pmc]: penske media corporation [ covid-19]: coronavirus disease 2019 [covid-19]: coronavirus disease 2019 [v]: view this template [t]: telephone [e]: email []: you need to accept this checkbox.", "i confirm that any such study reported in the manuscript has been registered and the trial registration id is provided (note: if posting a prospective study registered retrospectively, please provide a statement in the trial id field explaining why the study was not registered in advance).", 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  "finally, comparison with two additional randomized clinical trials of vitamin d supplementation for covid-19 in india and brazil indicates that early intervention and rapid absorption may be crucial for the observed benefits of vitamin d. we conclude that the córdoba study provides sufficient evidence to warrant immediate, well-designed pivotal clinical trials of early calcifediol administration in a broader cohort of inpatients and outpatients with covid-19.")