Fig. 2.

Evaluation of mean bone density of the vertebral bodies on spinal CT. The mean bone densities of T8 were 103 and 139 HU in group A and B, respectively (P = 0.002), and those of T9 were 101 and 134 HU, respectively (P = 0.01). In contrast, those of L4 were 182 and 111 HU, respectively (P = 0.002) and those of L5 were 144 and 111 HU, respectively (P = 0.01), being significantly higher in group A. *Significant difference between groups with P < 0.05