CORRELATION BETWEEN VITAMIN D DEFICIENCY AND FASTING BLOOD GLUCOSE LEVELS IN OBESE CHILDREN

Background: This study aimed to determine the correlation between vitamin D deficiency and hyperglycaemia in obese children. Methods: This cross-sectional study was conducted from February - April 2020 with the subject of junior and senior high school students aged 11 to 17 years old who meet the obesity criteria. Measurement of vitamin D were 25 (OH) D levels were using Chemiluminescence Immune Assay method. Subjects were divided into 4 groups; vitamin D deficiency with hyperglycaemia, vitamin D deficiency without hyperglycaemia, normal vitamin D with hyperglycaemia, and normal vitamin D without hyperglycaemia. Results: The frequency of hyperglycaemia in vitamin D deficiency group was 28 (54.9%), while in normal vitamin D group was 17 (37.8%). Statistical analysis showed no significant difference between the two groups with p = 0.093. There was a significant difference in the mean value of fasting blood glucose levels between the two groups with p = 0.031. The frequency of hyperglycaemia in vitamin D deficiency group was 54.9%, while in normal vitamin D group was 37.8%. Fasting blood glucose levels in obese children with vitamin D deficiency were lower than children with normal vitamin D deficiency. Conclusion: Fasting blood glucose levels had no clinical significance.