The main clinical features and laboratory data of the study population from the cross sectional case-control study according to the presence of type 2 diabetes.

Data are mean ± SD, median (range), and percentage. Mg: serum magnesium; BMI: body mass index; HOMA-IR: insulin resistance measured by the homeostasis model assessment; 25(OH)D: 25-hydroxy vitamin D; iPTH: intact parathyroid hormone.*: Restricted to individuals without current hypoglycaemic medication.