Aim: The goal of this study is to find out how common vitamin D deficiency is in patients with corona virus disease and what the consequences are.

Study Design: Observational /Prospective

Place and Duration: Institute of Basic medical sciences, Khyber Medical University (KMU), Jan 2021-Oct 2021.

Materials & Methods: This study included 120 patients of  both genders who had been diagnosed with covid-19. Patients ranged in age from 15 to 75 years. After receiving written agreement, demographically detailed such as age, sex, and BMI were recorded. All of the patients had a 5 mL blood sample obtained to check their vitamin D levels. 25(OH)D < 25 nmol/L (10 ng/dL) was considered severe Vitamin D insufficiency. The prevalence of vitamin D insufficiency as well as negative effects were investigated. SPSS 23.0 was used to analyse the data.

Results: The mean age of the 120 patients was 40.11±8.64 years, with 68 (56.7%) males and 52 (43.3%) females. There were 52 patients (43.3%) with severe vitamin D insufficiency. There were 17 deaths of the total number of patients in the study. Vitamin D deficiency was associated with a higher mortality rate in patients with covid-19 disease than in those who had normal levels of vitamin D, a finding that was statistically significant at the 0.05 level.

Conclusion: It was found that severe deficiency of vitamin D and death in individuals with covid-19 illness had a strong association.

Keywords: Mortality, Vitamin D Deficiency, Covid-19,