Abstract

Background: Vitamin D is a fat-soluble vitamin mostly known for its role in calcium metabolism. However, it is also actively involved in several metabolic pathways, especially in the cardiovascular system and insulin resistance. Despite vitamin D crucial role, it is estimated that 30–50% of the worldwide population has vitamin D deficiency. A lot of research has investigated the relationships between cardiometabolic risk factors with insufficient vitamin D. However, the results of other studies are conflicting and controversial. Objectives: (1). Determine the prevalence of vitamin D insufficiency in study subjects. (2). Investigate the relationships between cardiometabolic risk factors for predicting insufficient vitamin D. Methods: A cross-sectional study on 320 adult subjects for health examinations at International Medical Center at Hue Central Hospital. Plasma hydroxyvitamin D concentration was measured     using    chemiluminescent microparticle immunoassay. Results: In study subjects, the prevalence of vitamin D insufficiency was 55,2% (182 participants). Raised waist circumference, SBP > 130 mmHg, and HOMA-IR > 3,0 are independent risk factors for the prediction of vitamin D insufficiency (OR: 2,91; 2,76; 3,19; p < 0,05 to p < 0,001). Conclusion: The prevalence of vitamin D insufficiency was 55,2% (182 participants). Raised waist circumference, SBP > 130 mmHg, and HOMA-IR > 3,0 are independent risk factors for the prediction of vitamin D insufficiency (OR: 2,91; 2,76; 3,19; p < 0,05 to p < 0,001).