Association of Serum 25-hydroxyvitamin D with Insulin Resistance and β-cell Function in a Healthy Chinese Female Population
Overview
Affiliations
Aim: To assess associations of the serum level of 25-hydroxyvitamin D with insulin resistance and β-cell function in a healthy Chinese female population.
Methods: This cross-sectional study included 1382 female participants free of type 2 diabetes who were recruited in Shanghai. Blood samples were collected within a winter season and the serum levels of 25-hydroxyvitamin D, fasting plasma glucose and insulin, and other biochemical parameters were determined. Insulin resistance and β-cell function were assessed using the homeostasis model assessments of insulin resistance (HOMA-IR) and β-cell function (HOMA-B), respectively.
Results: Multiple linear regression analyses adjusted for age, parathyroid hormone, Ca(2+) and BMI revealed that independent inverse associations existed between the serum level of 25-hydroxyvitamin D and HOMA-IR (P<0.001) and between the serum level of 25-hydroxyvitamin D and HOMA-B (P=0.001).
Conclusion: Serum vitamin D level is significantly and independently associated with insulin resistance and β-cell function in a healthy Chinese female population.
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