Association of vitamin d, parathyroid hormone, and insulin resistance in patients with metabolic syndrome: A cross-sectional analytical study

Background

Vitamin D and parathyroid hormone (PTH) have been linked to insulin resistance and metabolic syndrome(MetS), although their independent relationships remain uncertain. Materials and Methods: This cross-sectional analyticalstudy included 250 patients with MetS. Serum 25(OH) vitamin D, intact PTH (iPTH), and insulin resistance assessed byHOMA-IR were evaluated. Associations were examined using correlation analysis, subgroup comparisons and multivariableregression.