Table 1:
Bone Structural Data. Bone structural data was obtained from the femurs of 8- week old mice exposed to room air (RA) or hyperoxia (O2) between postnatal days 0–4 using DXA and micro-CT scans. Values represent mean of 5 mice per group.
| Bone Parameter | Room Air (RA) | Hyperoxia (O2) | P value |
|---|---|---|---|
| Trabecular Bone (vol. / total vol.) | 0.32 ± 0.036 | 0.31 ± 0.05 | 0.78 |
| Trabecular Number (no./mm) | 6.65 ± 0.18 | 6.49 ± 0.19 | 0.55 |
| Trabecular Thickness (mm) | 0.07 ± 0.006 | 0.07 ± 0.008 | 0.92 |
| Trabecular Spacing (mm) | 0.13 ± 0.006 | 0.14 ± 0.006 | 0.66 |
| Connective Density (mm3) | 271.4 ± 13.03 | 291.8 ± 14.96 | 0.33 |
| Bone Mineral Density (g/cm3) | 806.22 ± 8.93 | 807 ± 12.66 | 0.94 |
| Cortical Thickness (mm) | 0.21 ± 0.005 | 0.20 ± 0.008 | 0.18 |
| Cortical Bone Area or BA (mm) | 2.88 ± 0.09 | 2.69 ± 0.08 | 0.15 |
| Structural Model Index (SMI) | 0.99 ± 0.28 | 1.22 ± 0.3 | 0.59 |