Cortical bone mineral density in patients with congenital adrenal hyperplasia due to 21-hydroxylase deficiency.

Background: Prior studies reveal that bone mineral density (BMD) in congenital adrenal hyperplasia (CAH) is mostly in the osteopaenic range and is associated with lifetime glucocorticoid dose. The forearm, a measure of cortical bone density, has not been evaluated.

Objective: We aimed to evaluate BMD at various sites, including the forearm, and the factors associated with low BMD in CAH patients.