Relationship between Thyroid Volume and Baseline Vitamin D Levels in New-Onset Graves Disease

Abstract

Objective: Serum vitamin D is shown to be decreased and associated with higher thyroid volumes in Graves disease (GD). We aimed toinvestigate the relationship between thyroid volume and baseline serum vitamin D status in newly diagnosed GD patients.Methods: This was a single-center cross-sectional study with a total of 61 new-onset GD patients (n=61, F: 40, M: 21) who weredivided into two groups, according to baseline serum vitamin D levels, as Group-1 (vitamin D