Evaluating the level of vitamin D in Iraqi covid-19 patients and its association with biochemical parameters

Vitamin D deficiency is widespread in Iraq country. Infectious rate with COVID-19 was increased in our country. Aim of this study to was to show more info on the relation between serum vitamin D level and infection’s severity and its relation per other biomarker. This cross-sectional descriptive type that made in COVID-19 infected persons (n=90) attending abograib Hospital, from July 2021 to February 2022, 2020, who were confirmed for COVID-19 infection with RT-PCR. Divided according to the severity as not severe & severe. In this study, 90 patients infected with COVID-19 (age of the patients range from (18 - 65) years old were studied. There were 37 as not severe infected group (13female, 24 male), and 53 severe infected as 21 females, and 32 male.  Level of Serum Vit. D significantly lesser in severe group than those in not severe group (14.2 ± 5.23vs. 31.11± 8.72 ng/ml) respectively. Serum D-dimer, Ferritin, and CRP parameters are significantly lower in in severe group than those in not-severe group (2.23 ± 1.51 vs 0.45 ± 0.32), (620.31 ± 189.56 vs 298.1±194.74), and (63.81 ± 35.2 vs 16.53 ± 12.82) respectively. Vitamin D level was negatively correlated with D-dimer, Ferritin, and CRP levels. This study showed that serum level of Vit. D was lesser in severe group, and it is negatively correlated with other inflammatory marker as D dimer, ferritin, CRP.