No significant differences in BMD at L1-L4, 1/3 radius, or cortical bone thickness measured at the second metacarpal were obsered between the two groups after adjustment for size and bone age.

• 该研究通过测量两组具有相似大小和骨龄的第二掌骨的L1-L4，1/3的桡骨的骨矿物质密度，发现无显著差异。