Table 3.
Bone geometry as measured by DXA in patients with anorexia nervosa and in controls.
| Patients | Controls | P | |
|---|---|---|---|
| Lumbar spine | |||
| BMC (g) | 40.1 ± 7.2 | 43.6 ± 7.1 | 0.01 |
| Area (cm2) | 44.9 ± 4.8 | 42.3 ± 4.0 | 0.002 |
| BMAD (g/cm3) | 0.13 ± 0.01 | 0.16 ± 0.02 | 0.0001 |
| L2 vertebral height (mm) | 29.1 ± 1.8 | 28.0 ± 2.3 | 0.0029 |
| L2 width: higher part (mm) | 40.2 ± 2.9 | 38.9 ± 3.3 | 0.02 |
| L2 width: middle part (mm) | 34.8 ± 2.7 | 33.8 ± 2.4 | ns |
| L2 width: lower part (mm) | 38.5 ± 3.2 | 35.3 ± 2.9 | 0.001 |
| Hip | |||
| BMC (g)/neck | 4.0 ± 0.7 | 4.4 ± 0.7 | 0.003 |
| Area (cm2)/neck | 5.3 ± 0.4 | 5.1 ± 0.5 | 0.01 |
| BMC (g)/total hip | 24.1 ± 4.2 | 29.3 ± 3.9 | 0.0001 |
| Area (cm2)/total hip | 31.2 ± 3.1 | 30.9 ± 2.0 | ns |
| Hip midline (mm) | 83.7 ± 4.6 | 81.0 ± 5.0 | 0.002 |
| Neck diameter (mm) | 31.1 ± 2.2 | 30.3 ± 2.1 | ns |
| BMAD (g/cm3) | 0.14 ± 0.02 | 0.17 ± 0.03 | 0.0001 |
| BMC (g)/trochanter | 5.4 ± 1.1 | 6.3 ± 1.3 | 0.0007 |
| Area (cm2)/trochanter | 9.0 ± 1.0 | 8.9 ± 0.9 | ns |
| Femoral shaft (mm) | 27.2 ± 2.2 | 26.5 ± 2.5 | ns |
| Internal cortical thickness (mm) | 5.8 ± 1.0 | 6.3 ± 0.9 | 0.008 |
| External cortical thickness (mm) | 5.0 ± 0.8 | 5.0 ± 0.8 | ns |
Mean ± SD.