25-Hydroxyvitamin D level is associated with mortality in patients with critical COVID-19: a prospective observational study in Mexico City.
Israel Parra-OrtegaDiana Guadalupe Alcara-RamírezAlma Angélica Ronzon-RonzonFermín Elías-GarcíaJosé Agustín Mata-ChapolAlejandro Daniel Cervantes-CoteBriceida López-MartínezMiguel Angel Villasís-KeeverJessie Nallely Zurita-CruzPublished in: Nutrition research and practice (2021)
Vitamin D deficiency was present in 84% of critical COVID-19 patients. Serum 25(OH)D was independently associated with mortality in critical patients with COVID-19.