Calcifediol Treatment and Hospital Mortality Due to COVID-19: A Cohort Study.

Context: Calcifediol has been proposed as a potential treatment for COVID-19 patients.

Objective: To compare the administration or not of oral calcifediol on mortality risk of patients hospitalized because of COVID-19.

Design: Retrospective, multicenter, open, non-randomized cohort study.

[Prognostic factors on mortality in patients admitted to hospital with heart failure].

Background: Heart failure (HF) is the leading cause of hospitalization for aging populations in Western countries, and is showing an increasing mortality. The aim of this study was to assess the probable long-term mortality risk factors for patients admitted because of HF.

Methods: Retrospective study of a cohort of 202 patients consecutively hospitalized because of HF and followed up for a maximum period of 5 years.