claim: low vitamin k status predicts ards in a cohort of 138 hospitalized patients with covid-19.
evidence_1: we aimed to test the hypothesis that low vitamin k status is a common characteristic of patients hospitalized with covid-19 compared to population controls; and that low vitamin k status predicts mortality in covid-19 patients.", "low vitamin k status predicts mortality in a cohort of 138 hospitalized patients with covi", "in conclusion, we found that low vitamin k status predicted mortality in patients with covid-19 supporting a potential role of vitamin k in covid-19.")