Bone Abstracts

Objective: Transfusion dependent thalassemia (TM) patients have routinely been placed on vitamin D supplementation due to their increased risk of osteoporosis, as well as their high rates of vitamin D deficiency (serum 25 hydroxyvitamin D (25-OHD) <11 ng/ml) and insufficiency (25-OHD <30 ng/ml). Furthermore, recent studies have linked 25-OHD levels to hypercalciuria and nephrolithiasis in TM. The objective of this study is to determine the effect of vitamin D supplemen...