claim: 25-hydroxyvitamin d concentrations are elevated in patients with positive pcr for sars-cov-2
evidence_1: figure 2 ( a ) 25-hydroxyvitamin d figure 2 ( a ) 25-hydroxyvitamin d concentrations in the three evaluated groups divided by figure 2 ( a ) 25-hydroxyvitamin d concentrations in the three evaluated groups divided by gender (patients from 1 march to 14 april of 2019 and 2020 with a negative pcr, and of 2020 with a positive pcr to sars-cov-2; ( b ) 25-hydroxyvitamin d concentrations in the three evaluated groups divided by age (070 years vs. >70 years) (patients from 1 march to 14 april of 2019 and 2020 with a negative pcr, and of 2020 with a positive pcr for sars-cov-2.", 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  "low 25-hydroxyvitamin d levels on admission to the intensive care unit may predispose covid-19 pneumonia patients to a higher 28-day mortality risk: a pilot study on a greek icu cohort.", "in this cohort, significantly lower 25(oh)d levels ( p = 0.004) were found in pcr-positive for sars-cov-2 (median value 11.1 ng/ml) patients compared with negative patients (24.6 ng/ml); this was also confirmed by stratifying patients according to age >70 years.", "many authors have suggested the involvement of vitamin d in reducing the risk of infections; thus, we retrospectively investigated the 25-hydroxyvitamin d (25(oh)d) concentrations in plasma obtained from a cohort of patients from switzerland."
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  )