PCR had no significantly reported differences between COVID-19 cases and control group 29.98±5.25 vs 39.89 ± 5.01.
Conclusion: we found that COVID-19 patients with vitamin D deficiency were more likely to increase the risk of severe COVID-19 infection and complications; it helps regulate the body's inflammatory response, which is important in fighting off infections.
Ethics Statement and Consent to Participate The protocol was approved by the Ethics Licensing Committee of Sulaimani Polytechnic University, Kalar Technical College (No. KTC09 on February 5, 2023) and followed the Helsinki Declaration. All participants provided written informed consent and permission for publication, and the study adhered to the ARRIVE 2.0 principles. Permission to publish was obtained by signing the approved agreement of all study participants. All techniques were consistent with the Helsinki Declaration of 1964. Questionnaire for all participants were filled for those section that are required.
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