Table 2.
Sex differences in bone mass (adjusted by age and tibial length) a
| Tibia 38% Variables | Boys (n = 50) | Girls (n = 42) |
|---|---|---|
| Total BMC, g | 1.188 ± 0.099 | 1.161 ± 0.097 |
| Total area, mm2 | 160.366 ± 14.404 | 156.421 ± 14.433 |
| Total vBMD, mg/cm3 | 741.026 ± 41.571 | 742.837 ± 41.652 |
| Cortical thickness, mm | 2.803 ± 0.212 | 2.718 ± 0.214 |
| Cortical BMC, g | 1.042 ± 0.092 | 1.015 ± 0.091 |
| Cortical area, mm2 | 101.081 ± 9.242 | 97.511 ± 9.261 |
| Cortical vBMD, mg/cm3 | 1031.010 ± 35.560 | 1042.091 ± 35.631 |
| SSIPOL, mm3 | 360.825 ± 45.714 | 350.453 ± 45.806 |
| Frac_X, N | 743.204 ± 92.645 | 745.426 ± 92.830 |
BMC, bone mineral content; Frac_X, bone strength with regard to the x-axis; SSIPOL, polar strength strain index; vBMD, volumetric bone mineral density.
a
Values are given as mean ± SD. No differences were found between boys and girls (all P > 0.05).