Table 1. Bone mineral density at the lumbar vertebrae and femur obtained using quantitative computed tomography and dual X-ray absorptiometry.
| QCT (mg/cm2) | DXA (mg/cm2) | ||
|---|---|---|---|
| Lumbar vertebrae | |||
| L2 | 0.80 ± 0.06 | 0.72 ± 0.04 | |
| L3 | 0.82 ± 0.06 | 0.79 ± 0.06 | |
| L4 | 0.84 ± 0.07 | 0.84 ± 0.09 | |
| L5 | 0.87 ± 0.06 | 0.83 ± 0.08 | |
| L6 | 0.84 ± 0.08 | 0.76 ± 0.08 | |
| Mean | 0.79 ± 0.56 | 0.79 ± 0.86 | |
| Femur | |||
| Femoral neck | 0.90 ± 0.12 | 0.50 ± 0.06 | |
| Proximal diaphysis | 1.11 ± 0.11 | 0.94 ± 0.10 | |
| Distal diaphysis | 0.90 ± 0.12 | 0.65 ± 0.11 | |
| Mean | 0.98 ± 0.14 | 0.70 ± 0.21 | |
The data are shown as the mean and standard deviation. DXA, dual X-ray absorptiometry; QCT, quantitative computed tomography.