Association of body mass index with serum 25 hydroxy Vitamin D status in healthy pre and postmenopausal females

Introduction: BMI is associated with Vitamin D in pre and postmenopausal women. As the estrogen level decreases during menopause, this promotes hypovitaminosis D. The present study assessed Vitamin D status and found its correlation with BMI in healthy pre- and postmenopausal women. Materials and Methods: This cross-sectional study was conducted on 100 pre-menopausal and 100 postmenopausal women. Blood samples were collected for estimation of Vitamin D by fully automated Chemi Luminescent Immuno Assay. Statistical analyses were done by using Graphpad Prism 6 and Pearson correlation coefficient was computed between Vitamin D and BMI. Results: The mean levels of weight and BMI were increased significantly in post-menopausal women as compared to premenopausal women and the mean level of Vitamin D was decreased significantly in postmenopausal women as compared to premenopausal. In the present study, we observed that the BMI is significantly and negatively correlated with Vitamin D concentration in both pre (r=-0.549) and postmenopausal (r=-0.736) women and it was statistically significant. Conclusion: Vitamin D deficiency is prevalent in pre- and postmenopausal with BMI greater than 25 kg/meter2 and the decrease in Vitamin D was more in postmenopausal women as compared to premenopausal women and the Vitamin D was negatively associated with BMI in both pre and postmenopausal women.