PTH and diabetes mellitus: Patients with diabetes with poor glycemic control (HbA1c > 6.5%) had higher VD (10.09 ± 4.93 vs. 9.82 ± 5.57 ng/mL) and PTH (58.9 ± 49.99 vs. 50.73 ± 34.01 ng/mL) levels compared to those with adequate control (p values not significant).