tetano
Editor, Senior Moderator
BMC Infect Dis
. 2021 May 18;21(1):450.
doi: 10.1186/s12879-021-06168-7.
Lack of association between vitamin D insufficiency and clinical outcomes of patients with COVID-19 infection
Alireza Davoudi[SUP] 1 [/SUP], Narges Najafi[SUP] 1 [/SUP], Mohsen Aarabi[SUP] 2 [/SUP], Atefeh Tayebi[SUP] 1 [/SUP], Roja Nikaeen[SUP] 3 [/SUP], Hamideh Izadyar[SUP] 1 [/SUP], Zahra Salar[SUP] 4 [/SUP], Leila Delavarian[SUP] 1 [/SUP], Narges Vaseghi[SUP] 5 [/SUP], Zahra Daftarian[SUP] 1 [/SUP], Fatemeh Ahangarkani[SUP] 6 [/SUP]
Affiliations
Abstract
Background: A protective effect of vitamin D against COVID-19 infection is under investigation. We aimed to analyze the effect of vitamin D sufficiency on the clinical outcomes of patients infected with COVID-19.
Methods: In this cross-sectional study we analyzed the vitamin D levels of COVID-19 patients who were admitted to Razi Hospital (an infectious disease referral center in Mazandaran province in northern Iran) from February to March 2020. Overall, a cutoff point of 30 ng/mL was used for the definition of vitamin D sufficiency.
Results: One hundred fifty-three patients were analyzed in this study who had laboratory documentation of a 25(OH) D level at the time of hospitalization. The vitamin D levels of the patients were 27.19 ? 20.17 ng/mL. In total, 62.7% (n = 96) of the patients had a 25(OH) D level of less than 30 ng/mL and 37.25% (n = 57) had a 25(OH) D level of more than 30 ng/mL. In total, 49% (n = 75) of the patients suffered from at least one underlying disease. The univariate and multivariable regression showed that vitamin D sufficiency was not associated with a statistically significant lower risk of adverse clinical outcomes of COVID-19 such as duration of hospitalization and severity of infection (P > 0.05).
Conclusions: Sufficient vitamin D levels were not found to be protective against adverse clinical outcomes in patients infected with COVID-19. Chronic disorders in COVID-19 patients were found to have greater relevance than vitamin D levels in determining the adverse outcomes of the infection. Further studies are needed to determine the role of vitamin D level in predicting the outcomes of COVID-19 infection.
Keywords: COVID-19; Coronavirus; Insufficiency; SARS-CoV-2; Sufficiency; Vitamin D.
. 2021 May 18;21(1):450.
doi: 10.1186/s12879-021-06168-7.
Lack of association between vitamin D insufficiency and clinical outcomes of patients with COVID-19 infection
Alireza Davoudi[SUP] 1 [/SUP], Narges Najafi[SUP] 1 [/SUP], Mohsen Aarabi[SUP] 2 [/SUP], Atefeh Tayebi[SUP] 1 [/SUP], Roja Nikaeen[SUP] 3 [/SUP], Hamideh Izadyar[SUP] 1 [/SUP], Zahra Salar[SUP] 4 [/SUP], Leila Delavarian[SUP] 1 [/SUP], Narges Vaseghi[SUP] 5 [/SUP], Zahra Daftarian[SUP] 1 [/SUP], Fatemeh Ahangarkani[SUP] 6 [/SUP]
Affiliations
- PMID: 34006228
- DOI: 10.1186/s12879-021-06168-7
Abstract
Background: A protective effect of vitamin D against COVID-19 infection is under investigation. We aimed to analyze the effect of vitamin D sufficiency on the clinical outcomes of patients infected with COVID-19.
Methods: In this cross-sectional study we analyzed the vitamin D levels of COVID-19 patients who were admitted to Razi Hospital (an infectious disease referral center in Mazandaran province in northern Iran) from February to March 2020. Overall, a cutoff point of 30 ng/mL was used for the definition of vitamin D sufficiency.
Results: One hundred fifty-three patients were analyzed in this study who had laboratory documentation of a 25(OH) D level at the time of hospitalization. The vitamin D levels of the patients were 27.19 ? 20.17 ng/mL. In total, 62.7% (n = 96) of the patients had a 25(OH) D level of less than 30 ng/mL and 37.25% (n = 57) had a 25(OH) D level of more than 30 ng/mL. In total, 49% (n = 75) of the patients suffered from at least one underlying disease. The univariate and multivariable regression showed that vitamin D sufficiency was not associated with a statistically significant lower risk of adverse clinical outcomes of COVID-19 such as duration of hospitalization and severity of infection (P > 0.05).
Conclusions: Sufficient vitamin D levels were not found to be protective against adverse clinical outcomes in patients infected with COVID-19. Chronic disorders in COVID-19 patients were found to have greater relevance than vitamin D levels in determining the adverse outcomes of the infection. Further studies are needed to determine the role of vitamin D level in predicting the outcomes of COVID-19 infection.
Keywords: COVID-19; Coronavirus; Insufficiency; SARS-CoV-2; Sufficiency; Vitamin D.