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Home   COVID-19 treatment studies for Vitamin D  COVID-19 treatment studies for Vitamin D  C19 studies: Vitamin D  Vitamin D   Select treatmentSelect treatmentTreatmentsTreatments
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All Studies   Meta Analysis   Recent: 
0 0.5 1 1.5 2+ Mortality -42% Improvement Relative Risk Case -146% c19early.org/d Ullah et al. Vitamin D for COVID-19 Prophylaxis Favors vitamin D Favors control
COVID-19 in patients with hepatobiliary and pancreatic diseases in East London: a single-centre cohort study
Ullah et al., Pancreatology, doi:10.1016/j.pan.2020.10.005
4 Mar 2021    Source   PDF   Share   Tweet
Retrospective 15,440 patients with hepatobiliary and pancreatic diseases in the United Kingdom, 226 with confirmed COVID-19, showing higher risk with vitamin D supplementation. Results are likely confounded by impaired vitamin D processing and propensity to prescribe supplementation based on specifics of each patient's disease and vitamin D levels. Adjustments used broad age ranges, likely adding to residual confounding.
risk of death, 42.1% higher, RR 1.42, p = 0.34, treatment 21 of 64 (32.8%), control 26 of 135 (19.3%), adjusted per study, odds ratio converted to relative risk.
risk of case, 146.0% higher, RR 2.46, p < 0.001, treatment 69 of 2,168 (3.2%), control 139 of 12,681 (1.1%), adjusted per study, odds ratio converted to relative risk.
Effect extraction follows pre-specified rules prioritizing more serious outcomes. Submit updates
This study is excluded in the after exclusion results of meta analysis: significant unadjusted confounding possible.
Ullah et al., 4 Mar 2021, retrospective, United Kingdom, peer-reviewed, 3 authors, dosage not specified.
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